From laura.trubuil at mail.medecom.fr Tue Jul 2 08:32:56 2013 From: laura.trubuil at mail.medecom.fr (Laura Trubuil) Date: Tue, 02 Jul 2013 14:32:56 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter Message-ID: <51D2C878.808@mail.medecom.fr> Dear RTK users, In the ramp filter provided by RTK: The truncationCorrection parameter's role is to correct artifacts caused by objects extending outside the scan field of view, isn't it? Or am I wrong? If I am right, how exactly does it works? Regards, Laura From simon.rit at creatis.insa-lyon.fr Tue Jul 2 09:02:46 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Tue, 2 Jul 2013 15:02:46 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter In-Reply-To: <51D2C878.808@mail.medecom.fr> References: <51D2C878.808@mail.medecom.fr> Message-ID: Hi Laura, As indicated somewhere in the header file, the truncation correction is the implementation of the method described in details in this publication http://www.ncbi.nlm.nih.gov/pubmed/10659736 Regards, Simon Rit On Tue, Jul 2, 2013 at 2:32 PM, Laura Trubuil wrote: > Dear RTK users, > In the ramp filter provided by RTK: The truncationCorrection parameter's > role is to correct artifacts caused by objects extending outside the scan > field of view, isn't it? Or am I wrong? > If I am right, how exactly does it works? > Regards, > > Laura > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users From Cyril.Mory at philips.com Tue Jul 16 03:13:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Tue, 16 Jul 2013 07:13:35 +0000 Subject: [Rtk-users] CUDA SART Message-ID: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Wed Jul 17 03:56:38 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Wed, 17 Jul 2013 09:56:38 +0200 Subject: [Rtk-users] CUDA SART In-Reply-To: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL wrote: > Hi RTK users, > > > > Has anyone used the CUDA version of SART ? I?m getting good results with > the CPU version, and completely diverging results with the CUDA version > (the results have attenuation values around 10^7 while they should be > between 0 and 1). > > I?m wondering if it?s a problem on my side or a global issue. > > > > Regards, > > ========================================== > > Cyril Mory > > PhD student at Philips Medisys and CREATIS > > > > Groupement Hospitalier Est > > H?pital Cardiologique Louis Pradel > > Laboratoire CREATIS - B?t. B13 > > CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 > > 28, Avenue du Doyen LEPINE > > 69677 Bron cedex FRANCE > > > > Office : +33 4 72 35 74 12 > > Cell : +33 6 69 46 73 79 > > > > ------------------------------ > The information contained in this message may be confidential and legally > protected under applicable law. The message is intended solely for the > addressee(s). If you are not the intended recipient, you are hereby > notified that any use, forwarding, dissemination, or reproduction of this > message is strictly prohibited and may be unlawful. If you are not the > intended recipient, please contact the sender by return e-mail and destroy > all copies of the original message. > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From Cyril.Mory at philips.com Wed Jul 17 04:01:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 17 Jul 2013 08:01:35 +0000 Subject: [Rtk-users] CUDA SART In-Reply-To: References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: <3B67D2F1029933428E0E93E2C2F18013350004DC@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi Simon, Yes, I'll try to reproduce my buggy case and send it over as soon as I can. Regards, Cyril De : simon.rit at gmail.com [mailto:simon.rit at gmail.com] De la part de Simon Rit Envoy? : mercredi 17 juillet 2013 09:57 ? : MORY, CYRIL Cc : rtk-users at openrtk.org Objet : Re: [Rtk-users] CUDA SART Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL > wrote: Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. _______________________________________________ Rtk-users mailing list Rtk-users at openrtk.org http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Sat Jul 27 03:28:20 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Sat, 27 Jul 2013 09:28:20 +0200 Subject: [Rtk-users] Tutorial on motion-compensated reconstruction Message-ID: Dear users, I have put together a tutorial on the use of motion compensated reconstruction in RTK: http://wiki.openrtk.org/index.php/RTK/Examples/MCCBCTReconstruction I have done my best to make it clear but don't hesitate to suggest modifications / clarifications! Simon From Cyril.Mory at philips.com Wed Jul 31 09:31:30 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 31 Jul 2013 13:31:30 +0000 Subject: [Rtk-users] Joseph back projection filter Message-ID: <3B67D2F1029933428E0E93E2C2F1801335009461@011-DB3MPN1-042.MGDPHG.emi.philips.com> Hi RTK users, I just ran into trouble with the Joseph back projection filter. It crashed with the error "Largest and buffered region must be similar". The other back projection filters do not seem to have the same limitation, so I use VoxelBasedBackProjection and it works fine, but I'm curious why this check has been introduced in the Joseph back projection filter. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From laura.trubuil at mail.medecom.fr Tue Jul 2 08:32:56 2013 From: laura.trubuil at mail.medecom.fr (Laura Trubuil) Date: Tue, 02 Jul 2013 14:32:56 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter Message-ID: <51D2C878.808@mail.medecom.fr> Dear RTK users, In the ramp filter provided by RTK: The truncationCorrection parameter's role is to correct artifacts caused by objects extending outside the scan field of view, isn't it? Or am I wrong? If I am right, how exactly does it works? Regards, Laura From simon.rit at creatis.insa-lyon.fr Tue Jul 2 09:02:46 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Tue, 2 Jul 2013 15:02:46 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter In-Reply-To: <51D2C878.808@mail.medecom.fr> References: <51D2C878.808@mail.medecom.fr> Message-ID: Hi Laura, As indicated somewhere in the header file, the truncation correction is the implementation of the method described in details in this publication http://www.ncbi.nlm.nih.gov/pubmed/10659736 Regards, Simon Rit On Tue, Jul 2, 2013 at 2:32 PM, Laura Trubuil wrote: > Dear RTK users, > In the ramp filter provided by RTK: The truncationCorrection parameter's > role is to correct artifacts caused by objects extending outside the scan > field of view, isn't it? Or am I wrong? > If I am right, how exactly does it works? > Regards, > > Laura > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users From Cyril.Mory at philips.com Tue Jul 16 03:13:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Tue, 16 Jul 2013 07:13:35 +0000 Subject: [Rtk-users] CUDA SART Message-ID: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Wed Jul 17 03:56:38 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Wed, 17 Jul 2013 09:56:38 +0200 Subject: [Rtk-users] CUDA SART In-Reply-To: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL wrote: > Hi RTK users, > > > > Has anyone used the CUDA version of SART ? I?m getting good results with > the CPU version, and completely diverging results with the CUDA version > (the results have attenuation values around 10^7 while they should be > between 0 and 1). > > I?m wondering if it?s a problem on my side or a global issue. > > > > Regards, > > ========================================== > > Cyril Mory > > PhD student at Philips Medisys and CREATIS > > > > Groupement Hospitalier Est > > H?pital Cardiologique Louis Pradel > > Laboratoire CREATIS - B?t. B13 > > CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 > > 28, Avenue du Doyen LEPINE > > 69677 Bron cedex FRANCE > > > > Office : +33 4 72 35 74 12 > > Cell : +33 6 69 46 73 79 > > > > ------------------------------ > The information contained in this message may be confidential and legally > protected under applicable law. The message is intended solely for the > addressee(s). If you are not the intended recipient, you are hereby > notified that any use, forwarding, dissemination, or reproduction of this > message is strictly prohibited and may be unlawful. If you are not the > intended recipient, please contact the sender by return e-mail and destroy > all copies of the original message. > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From Cyril.Mory at philips.com Wed Jul 17 04:01:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 17 Jul 2013 08:01:35 +0000 Subject: [Rtk-users] CUDA SART In-Reply-To: References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: <3B67D2F1029933428E0E93E2C2F18013350004DC@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi Simon, Yes, I'll try to reproduce my buggy case and send it over as soon as I can. Regards, Cyril De : simon.rit at gmail.com [mailto:simon.rit at gmail.com] De la part de Simon Rit Envoy? : mercredi 17 juillet 2013 09:57 ? : MORY, CYRIL Cc : rtk-users at openrtk.org Objet : Re: [Rtk-users] CUDA SART Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL > wrote: Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. _______________________________________________ Rtk-users mailing list Rtk-users at openrtk.org http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Sat Jul 27 03:28:20 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Sat, 27 Jul 2013 09:28:20 +0200 Subject: [Rtk-users] Tutorial on motion-compensated reconstruction Message-ID: Dear users, I have put together a tutorial on the use of motion compensated reconstruction in RTK: http://wiki.openrtk.org/index.php/RTK/Examples/MCCBCTReconstruction I have done my best to make it clear but don't hesitate to suggest modifications / clarifications! Simon From Cyril.Mory at philips.com Wed Jul 31 09:31:30 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 31 Jul 2013 13:31:30 +0000 Subject: [Rtk-users] Joseph back projection filter Message-ID: <3B67D2F1029933428E0E93E2C2F1801335009461@011-DB3MPN1-042.MGDPHG.emi.philips.com> Hi RTK users, I just ran into trouble with the Joseph back projection filter. It crashed with the error "Largest and buffered region must be similar". The other back projection filters do not seem to have the same limitation, so I use VoxelBasedBackProjection and it works fine, but I'm curious why this check has been introduced in the Joseph back projection filter. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From laura.trubuil at mail.medecom.fr Tue Jul 2 08:32:56 2013 From: laura.trubuil at mail.medecom.fr (Laura Trubuil) Date: Tue, 02 Jul 2013 14:32:56 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter Message-ID: <51D2C878.808@mail.medecom.fr> Dear RTK users, In the ramp filter provided by RTK: The truncationCorrection parameter's role is to correct artifacts caused by objects extending outside the scan field of view, isn't it? Or am I wrong? If I am right, how exactly does it works? Regards, Laura From simon.rit at creatis.insa-lyon.fr Tue Jul 2 09:02:46 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Tue, 2 Jul 2013 15:02:46 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter In-Reply-To: <51D2C878.808@mail.medecom.fr> References: <51D2C878.808@mail.medecom.fr> Message-ID: Hi Laura, As indicated somewhere in the header file, the truncation correction is the implementation of the method described in details in this publication http://www.ncbi.nlm.nih.gov/pubmed/10659736 Regards, Simon Rit On Tue, Jul 2, 2013 at 2:32 PM, Laura Trubuil wrote: > Dear RTK users, > In the ramp filter provided by RTK: The truncationCorrection parameter's > role is to correct artifacts caused by objects extending outside the scan > field of view, isn't it? Or am I wrong? > If I am right, how exactly does it works? > Regards, > > Laura > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users From Cyril.Mory at philips.com Tue Jul 16 03:13:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Tue, 16 Jul 2013 07:13:35 +0000 Subject: [Rtk-users] CUDA SART Message-ID: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Wed Jul 17 03:56:38 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Wed, 17 Jul 2013 09:56:38 +0200 Subject: [Rtk-users] CUDA SART In-Reply-To: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL wrote: > Hi RTK users, > > > > Has anyone used the CUDA version of SART ? I?m getting good results with > the CPU version, and completely diverging results with the CUDA version > (the results have attenuation values around 10^7 while they should be > between 0 and 1). > > I?m wondering if it?s a problem on my side or a global issue. > > > > Regards, > > ========================================== > > Cyril Mory > > PhD student at Philips Medisys and CREATIS > > > > Groupement Hospitalier Est > > H?pital Cardiologique Louis Pradel > > Laboratoire CREATIS - B?t. B13 > > CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 > > 28, Avenue du Doyen LEPINE > > 69677 Bron cedex FRANCE > > > > Office : +33 4 72 35 74 12 > > Cell : +33 6 69 46 73 79 > > > > ------------------------------ > The information contained in this message may be confidential and legally > protected under applicable law. The message is intended solely for the > addressee(s). If you are not the intended recipient, you are hereby > notified that any use, forwarding, dissemination, or reproduction of this > message is strictly prohibited and may be unlawful. If you are not the > intended recipient, please contact the sender by return e-mail and destroy > all copies of the original message. > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From Cyril.Mory at philips.com Wed Jul 17 04:01:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 17 Jul 2013 08:01:35 +0000 Subject: [Rtk-users] CUDA SART In-Reply-To: References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: <3B67D2F1029933428E0E93E2C2F18013350004DC@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi Simon, Yes, I'll try to reproduce my buggy case and send it over as soon as I can. Regards, Cyril De : simon.rit at gmail.com [mailto:simon.rit at gmail.com] De la part de Simon Rit Envoy? : mercredi 17 juillet 2013 09:57 ? : MORY, CYRIL Cc : rtk-users at openrtk.org Objet : Re: [Rtk-users] CUDA SART Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL > wrote: Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. _______________________________________________ Rtk-users mailing list Rtk-users at openrtk.org http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Sat Jul 27 03:28:20 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Sat, 27 Jul 2013 09:28:20 +0200 Subject: [Rtk-users] Tutorial on motion-compensated reconstruction Message-ID: Dear users, I have put together a tutorial on the use of motion compensated reconstruction in RTK: http://wiki.openrtk.org/index.php/RTK/Examples/MCCBCTReconstruction I have done my best to make it clear but don't hesitate to suggest modifications / clarifications! Simon From Cyril.Mory at philips.com Wed Jul 31 09:31:30 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 31 Jul 2013 13:31:30 +0000 Subject: [Rtk-users] Joseph back projection filter Message-ID: <3B67D2F1029933428E0E93E2C2F1801335009461@011-DB3MPN1-042.MGDPHG.emi.philips.com> Hi RTK users, I just ran into trouble with the Joseph back projection filter. It crashed with the error "Largest and buffered region must be similar". The other back projection filters do not seem to have the same limitation, so I use VoxelBasedBackProjection and it works fine, but I'm curious why this check has been introduced in the Joseph back projection filter. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From laura.trubuil at mail.medecom.fr Tue Jul 2 08:32:56 2013 From: laura.trubuil at mail.medecom.fr (Laura Trubuil) Date: Tue, 02 Jul 2013 14:32:56 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter Message-ID: <51D2C878.808@mail.medecom.fr> Dear RTK users, In the ramp filter provided by RTK: The truncationCorrection parameter's role is to correct artifacts caused by objects extending outside the scan field of view, isn't it? Or am I wrong? If I am right, how exactly does it works? Regards, Laura From simon.rit at creatis.insa-lyon.fr Tue Jul 2 09:02:46 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Tue, 2 Jul 2013 15:02:46 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter In-Reply-To: <51D2C878.808@mail.medecom.fr> References: <51D2C878.808@mail.medecom.fr> Message-ID: Hi Laura, As indicated somewhere in the header file, the truncation correction is the implementation of the method described in details in this publication http://www.ncbi.nlm.nih.gov/pubmed/10659736 Regards, Simon Rit On Tue, Jul 2, 2013 at 2:32 PM, Laura Trubuil wrote: > Dear RTK users, > In the ramp filter provided by RTK: The truncationCorrection parameter's > role is to correct artifacts caused by objects extending outside the scan > field of view, isn't it? Or am I wrong? > If I am right, how exactly does it works? > Regards, > > Laura > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users From Cyril.Mory at philips.com Tue Jul 16 03:13:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Tue, 16 Jul 2013 07:13:35 +0000 Subject: [Rtk-users] CUDA SART Message-ID: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Wed Jul 17 03:56:38 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Wed, 17 Jul 2013 09:56:38 +0200 Subject: [Rtk-users] CUDA SART In-Reply-To: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL wrote: > Hi RTK users, > > > > Has anyone used the CUDA version of SART ? I?m getting good results with > the CPU version, and completely diverging results with the CUDA version > (the results have attenuation values around 10^7 while they should be > between 0 and 1). > > I?m wondering if it?s a problem on my side or a global issue. > > > > Regards, > > ========================================== > > Cyril Mory > > PhD student at Philips Medisys and CREATIS > > > > Groupement Hospitalier Est > > H?pital Cardiologique Louis Pradel > > Laboratoire CREATIS - B?t. B13 > > CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 > > 28, Avenue du Doyen LEPINE > > 69677 Bron cedex FRANCE > > > > Office : +33 4 72 35 74 12 > > Cell : +33 6 69 46 73 79 > > > > ------------------------------ > The information contained in this message may be confidential and legally > protected under applicable law. The message is intended solely for the > addressee(s). If you are not the intended recipient, you are hereby > notified that any use, forwarding, dissemination, or reproduction of this > message is strictly prohibited and may be unlawful. If you are not the > intended recipient, please contact the sender by return e-mail and destroy > all copies of the original message. > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From Cyril.Mory at philips.com Wed Jul 17 04:01:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 17 Jul 2013 08:01:35 +0000 Subject: [Rtk-users] CUDA SART In-Reply-To: References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: <3B67D2F1029933428E0E93E2C2F18013350004DC@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi Simon, Yes, I'll try to reproduce my buggy case and send it over as soon as I can. Regards, Cyril De : simon.rit at gmail.com [mailto:simon.rit at gmail.com] De la part de Simon Rit Envoy? : mercredi 17 juillet 2013 09:57 ? : MORY, CYRIL Cc : rtk-users at openrtk.org Objet : Re: [Rtk-users] CUDA SART Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL > wrote: Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. _______________________________________________ Rtk-users mailing list Rtk-users at openrtk.org http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Sat Jul 27 03:28:20 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Sat, 27 Jul 2013 09:28:20 +0200 Subject: [Rtk-users] Tutorial on motion-compensated reconstruction Message-ID: Dear users, I have put together a tutorial on the use of motion compensated reconstruction in RTK: http://wiki.openrtk.org/index.php/RTK/Examples/MCCBCTReconstruction I have done my best to make it clear but don't hesitate to suggest modifications / clarifications! Simon From Cyril.Mory at philips.com Wed Jul 31 09:31:30 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 31 Jul 2013 13:31:30 +0000 Subject: [Rtk-users] Joseph back projection filter Message-ID: <3B67D2F1029933428E0E93E2C2F1801335009461@011-DB3MPN1-042.MGDPHG.emi.philips.com> Hi RTK users, I just ran into trouble with the Joseph back projection filter. It crashed with the error "Largest and buffered region must be similar". The other back projection filters do not seem to have the same limitation, so I use VoxelBasedBackProjection and it works fine, but I'm curious why this check has been introduced in the Joseph back projection filter. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From laura.trubuil at mail.medecom.fr Tue Jul 2 08:32:56 2013 From: laura.trubuil at mail.medecom.fr (Laura Trubuil) Date: Tue, 02 Jul 2013 14:32:56 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter Message-ID: <51D2C878.808@mail.medecom.fr> Dear RTK users, In the ramp filter provided by RTK: The truncationCorrection parameter's role is to correct artifacts caused by objects extending outside the scan field of view, isn't it? Or am I wrong? If I am right, how exactly does it works? Regards, Laura From simon.rit at creatis.insa-lyon.fr Tue Jul 2 09:02:46 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Tue, 2 Jul 2013 15:02:46 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter In-Reply-To: <51D2C878.808@mail.medecom.fr> References: <51D2C878.808@mail.medecom.fr> Message-ID: Hi Laura, As indicated somewhere in the header file, the truncation correction is the implementation of the method described in details in this publication http://www.ncbi.nlm.nih.gov/pubmed/10659736 Regards, Simon Rit On Tue, Jul 2, 2013 at 2:32 PM, Laura Trubuil wrote: > Dear RTK users, > In the ramp filter provided by RTK: The truncationCorrection parameter's > role is to correct artifacts caused by objects extending outside the scan > field of view, isn't it? Or am I wrong? > If I am right, how exactly does it works? > Regards, > > Laura > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users From Cyril.Mory at philips.com Tue Jul 16 03:13:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Tue, 16 Jul 2013 07:13:35 +0000 Subject: [Rtk-users] CUDA SART Message-ID: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Wed Jul 17 03:56:38 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Wed, 17 Jul 2013 09:56:38 +0200 Subject: [Rtk-users] CUDA SART In-Reply-To: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL wrote: > Hi RTK users, > > > > Has anyone used the CUDA version of SART ? I?m getting good results with > the CPU version, and completely diverging results with the CUDA version > (the results have attenuation values around 10^7 while they should be > between 0 and 1). > > I?m wondering if it?s a problem on my side or a global issue. > > > > Regards, > > ========================================== > > Cyril Mory > > PhD student at Philips Medisys and CREATIS > > > > Groupement Hospitalier Est > > H?pital Cardiologique Louis Pradel > > Laboratoire CREATIS - B?t. B13 > > CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 > > 28, Avenue du Doyen LEPINE > > 69677 Bron cedex FRANCE > > > > Office : +33 4 72 35 74 12 > > Cell : +33 6 69 46 73 79 > > > > ------------------------------ > The information contained in this message may be confidential and legally > protected under applicable law. The message is intended solely for the > addressee(s). If you are not the intended recipient, you are hereby > notified that any use, forwarding, dissemination, or reproduction of this > message is strictly prohibited and may be unlawful. If you are not the > intended recipient, please contact the sender by return e-mail and destroy > all copies of the original message. > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From Cyril.Mory at philips.com Wed Jul 17 04:01:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 17 Jul 2013 08:01:35 +0000 Subject: [Rtk-users] CUDA SART In-Reply-To: References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: <3B67D2F1029933428E0E93E2C2F18013350004DC@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi Simon, Yes, I'll try to reproduce my buggy case and send it over as soon as I can. Regards, Cyril De : simon.rit at gmail.com [mailto:simon.rit at gmail.com] De la part de Simon Rit Envoy? : mercredi 17 juillet 2013 09:57 ? : MORY, CYRIL Cc : rtk-users at openrtk.org Objet : Re: [Rtk-users] CUDA SART Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL > wrote: Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. _______________________________________________ Rtk-users mailing list Rtk-users at openrtk.org http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Sat Jul 27 03:28:20 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Sat, 27 Jul 2013 09:28:20 +0200 Subject: [Rtk-users] Tutorial on motion-compensated reconstruction Message-ID: Dear users, I have put together a tutorial on the use of motion compensated reconstruction in RTK: http://wiki.openrtk.org/index.php/RTK/Examples/MCCBCTReconstruction I have done my best to make it clear but don't hesitate to suggest modifications / clarifications! Simon From Cyril.Mory at philips.com Wed Jul 31 09:31:30 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 31 Jul 2013 13:31:30 +0000 Subject: [Rtk-users] Joseph back projection filter Message-ID: <3B67D2F1029933428E0E93E2C2F1801335009461@011-DB3MPN1-042.MGDPHG.emi.philips.com> Hi RTK users, I just ran into trouble with the Joseph back projection filter. It crashed with the error "Largest and buffered region must be similar". The other back projection filters do not seem to have the same limitation, so I use VoxelBasedBackProjection and it works fine, but I'm curious why this check has been introduced in the Joseph back projection filter. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From laura.trubuil at mail.medecom.fr Tue Jul 2 08:32:56 2013 From: laura.trubuil at mail.medecom.fr (Laura Trubuil) Date: Tue, 02 Jul 2013 14:32:56 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter Message-ID: <51D2C878.808@mail.medecom.fr> Dear RTK users, In the ramp filter provided by RTK: The truncationCorrection parameter's role is to correct artifacts caused by objects extending outside the scan field of view, isn't it? Or am I wrong? If I am right, how exactly does it works? Regards, Laura From simon.rit at creatis.insa-lyon.fr Tue Jul 2 09:02:46 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Tue, 2 Jul 2013 15:02:46 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter In-Reply-To: <51D2C878.808@mail.medecom.fr> References: <51D2C878.808@mail.medecom.fr> Message-ID: Hi Laura, As indicated somewhere in the header file, the truncation correction is the implementation of the method described in details in this publication http://www.ncbi.nlm.nih.gov/pubmed/10659736 Regards, Simon Rit On Tue, Jul 2, 2013 at 2:32 PM, Laura Trubuil wrote: > Dear RTK users, > In the ramp filter provided by RTK: The truncationCorrection parameter's > role is to correct artifacts caused by objects extending outside the scan > field of view, isn't it? Or am I wrong? > If I am right, how exactly does it works? > Regards, > > Laura > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users From Cyril.Mory at philips.com Tue Jul 16 03:13:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Tue, 16 Jul 2013 07:13:35 +0000 Subject: [Rtk-users] CUDA SART Message-ID: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Wed Jul 17 03:56:38 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Wed, 17 Jul 2013 09:56:38 +0200 Subject: [Rtk-users] CUDA SART In-Reply-To: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL wrote: > Hi RTK users, > > > > Has anyone used the CUDA version of SART ? I?m getting good results with > the CPU version, and completely diverging results with the CUDA version > (the results have attenuation values around 10^7 while they should be > between 0 and 1). > > I?m wondering if it?s a problem on my side or a global issue. > > > > Regards, > > ========================================== > > Cyril Mory > > PhD student at Philips Medisys and CREATIS > > > > Groupement Hospitalier Est > > H?pital Cardiologique Louis Pradel > > Laboratoire CREATIS - B?t. B13 > > CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 > > 28, Avenue du Doyen LEPINE > > 69677 Bron cedex FRANCE > > > > Office : +33 4 72 35 74 12 > > Cell : +33 6 69 46 73 79 > > > > ------------------------------ > The information contained in this message may be confidential and legally > protected under applicable law. The message is intended solely for the > addressee(s). If you are not the intended recipient, you are hereby > notified that any use, forwarding, dissemination, or reproduction of this > message is strictly prohibited and may be unlawful. If you are not the > intended recipient, please contact the sender by return e-mail and destroy > all copies of the original message. > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From Cyril.Mory at philips.com Wed Jul 17 04:01:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 17 Jul 2013 08:01:35 +0000 Subject: [Rtk-users] CUDA SART In-Reply-To: References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: <3B67D2F1029933428E0E93E2C2F18013350004DC@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi Simon, Yes, I'll try to reproduce my buggy case and send it over as soon as I can. Regards, Cyril De : simon.rit at gmail.com [mailto:simon.rit at gmail.com] De la part de Simon Rit Envoy? : mercredi 17 juillet 2013 09:57 ? : MORY, CYRIL Cc : rtk-users at openrtk.org Objet : Re: [Rtk-users] CUDA SART Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL > wrote: Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. _______________________________________________ Rtk-users mailing list Rtk-users at openrtk.org http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Sat Jul 27 03:28:20 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Sat, 27 Jul 2013 09:28:20 +0200 Subject: [Rtk-users] Tutorial on motion-compensated reconstruction Message-ID: Dear users, I have put together a tutorial on the use of motion compensated reconstruction in RTK: http://wiki.openrtk.org/index.php/RTK/Examples/MCCBCTReconstruction I have done my best to make it clear but don't hesitate to suggest modifications / clarifications! Simon From Cyril.Mory at philips.com Wed Jul 31 09:31:30 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 31 Jul 2013 13:31:30 +0000 Subject: [Rtk-users] Joseph back projection filter Message-ID: <3B67D2F1029933428E0E93E2C2F1801335009461@011-DB3MPN1-042.MGDPHG.emi.philips.com> Hi RTK users, I just ran into trouble with the Joseph back projection filter. It crashed with the error "Largest and buffered region must be similar". The other back projection filters do not seem to have the same limitation, so I use VoxelBasedBackProjection and it works fine, but I'm curious why this check has been introduced in the Joseph back projection filter. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From laura.trubuil at mail.medecom.fr Tue Jul 2 08:32:56 2013 From: laura.trubuil at mail.medecom.fr (Laura Trubuil) Date: Tue, 02 Jul 2013 14:32:56 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter Message-ID: <51D2C878.808@mail.medecom.fr> Dear RTK users, In the ramp filter provided by RTK: The truncationCorrection parameter's role is to correct artifacts caused by objects extending outside the scan field of view, isn't it? Or am I wrong? If I am right, how exactly does it works? Regards, Laura From simon.rit at creatis.insa-lyon.fr Tue Jul 2 09:02:46 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Tue, 2 Jul 2013 15:02:46 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter In-Reply-To: <51D2C878.808@mail.medecom.fr> References: <51D2C878.808@mail.medecom.fr> Message-ID: Hi Laura, As indicated somewhere in the header file, the truncation correction is the implementation of the method described in details in this publication http://www.ncbi.nlm.nih.gov/pubmed/10659736 Regards, Simon Rit On Tue, Jul 2, 2013 at 2:32 PM, Laura Trubuil wrote: > Dear RTK users, > In the ramp filter provided by RTK: The truncationCorrection parameter's > role is to correct artifacts caused by objects extending outside the scan > field of view, isn't it? Or am I wrong? > If I am right, how exactly does it works? > Regards, > > Laura > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users From Cyril.Mory at philips.com Tue Jul 16 03:13:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Tue, 16 Jul 2013 07:13:35 +0000 Subject: [Rtk-users] CUDA SART Message-ID: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Wed Jul 17 03:56:38 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Wed, 17 Jul 2013 09:56:38 +0200 Subject: [Rtk-users] CUDA SART In-Reply-To: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL wrote: > Hi RTK users, > > > > Has anyone used the CUDA version of SART ? I?m getting good results with > the CPU version, and completely diverging results with the CUDA version > (the results have attenuation values around 10^7 while they should be > between 0 and 1). > > I?m wondering if it?s a problem on my side or a global issue. > > > > Regards, > > ========================================== > > Cyril Mory > > PhD student at Philips Medisys and CREATIS > > > > Groupement Hospitalier Est > > H?pital Cardiologique Louis Pradel > > Laboratoire CREATIS - B?t. B13 > > CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 > > 28, Avenue du Doyen LEPINE > > 69677 Bron cedex FRANCE > > > > Office : +33 4 72 35 74 12 > > Cell : +33 6 69 46 73 79 > > > > ------------------------------ > The information contained in this message may be confidential and legally > protected under applicable law. The message is intended solely for the > addressee(s). If you are not the intended recipient, you are hereby > notified that any use, forwarding, dissemination, or reproduction of this > message is strictly prohibited and may be unlawful. If you are not the > intended recipient, please contact the sender by return e-mail and destroy > all copies of the original message. > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From Cyril.Mory at philips.com Wed Jul 17 04:01:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 17 Jul 2013 08:01:35 +0000 Subject: [Rtk-users] CUDA SART In-Reply-To: References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: <3B67D2F1029933428E0E93E2C2F18013350004DC@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi Simon, Yes, I'll try to reproduce my buggy case and send it over as soon as I can. Regards, Cyril De : simon.rit at gmail.com [mailto:simon.rit at gmail.com] De la part de Simon Rit Envoy? : mercredi 17 juillet 2013 09:57 ? : MORY, CYRIL Cc : rtk-users at openrtk.org Objet : Re: [Rtk-users] CUDA SART Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL > wrote: Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. _______________________________________________ Rtk-users mailing list Rtk-users at openrtk.org http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Sat Jul 27 03:28:20 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Sat, 27 Jul 2013 09:28:20 +0200 Subject: [Rtk-users] Tutorial on motion-compensated reconstruction Message-ID: Dear users, I have put together a tutorial on the use of motion compensated reconstruction in RTK: http://wiki.openrtk.org/index.php/RTK/Examples/MCCBCTReconstruction I have done my best to make it clear but don't hesitate to suggest modifications / clarifications! Simon From Cyril.Mory at philips.com Wed Jul 31 09:31:30 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 31 Jul 2013 13:31:30 +0000 Subject: [Rtk-users] Joseph back projection filter Message-ID: <3B67D2F1029933428E0E93E2C2F1801335009461@011-DB3MPN1-042.MGDPHG.emi.philips.com> Hi RTK users, I just ran into trouble with the Joseph back projection filter. It crashed with the error "Largest and buffered region must be similar". The other back projection filters do not seem to have the same limitation, so I use VoxelBasedBackProjection and it works fine, but I'm curious why this check has been introduced in the Joseph back projection filter. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From laura.trubuil at mail.medecom.fr Tue Jul 2 08:32:56 2013 From: laura.trubuil at mail.medecom.fr (Laura Trubuil) Date: Tue, 02 Jul 2013 14:32:56 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter Message-ID: <51D2C878.808@mail.medecom.fr> Dear RTK users, In the ramp filter provided by RTK: The truncationCorrection parameter's role is to correct artifacts caused by objects extending outside the scan field of view, isn't it? Or am I wrong? If I am right, how exactly does it works? Regards, Laura From simon.rit at creatis.insa-lyon.fr Tue Jul 2 09:02:46 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Tue, 2 Jul 2013 15:02:46 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter In-Reply-To: <51D2C878.808@mail.medecom.fr> References: <51D2C878.808@mail.medecom.fr> Message-ID: Hi Laura, As indicated somewhere in the header file, the truncation correction is the implementation of the method described in details in this publication http://www.ncbi.nlm.nih.gov/pubmed/10659736 Regards, Simon Rit On Tue, Jul 2, 2013 at 2:32 PM, Laura Trubuil wrote: > Dear RTK users, > In the ramp filter provided by RTK: The truncationCorrection parameter's > role is to correct artifacts caused by objects extending outside the scan > field of view, isn't it? Or am I wrong? > If I am right, how exactly does it works? > Regards, > > Laura > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users From Cyril.Mory at philips.com Tue Jul 16 03:13:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Tue, 16 Jul 2013 07:13:35 +0000 Subject: [Rtk-users] CUDA SART Message-ID: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Wed Jul 17 03:56:38 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Wed, 17 Jul 2013 09:56:38 +0200 Subject: [Rtk-users] CUDA SART In-Reply-To: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL wrote: > Hi RTK users, > > > > Has anyone used the CUDA version of SART ? I?m getting good results with > the CPU version, and completely diverging results with the CUDA version > (the results have attenuation values around 10^7 while they should be > between 0 and 1). > > I?m wondering if it?s a problem on my side or a global issue. > > > > Regards, > > ========================================== > > Cyril Mory > > PhD student at Philips Medisys and CREATIS > > > > Groupement Hospitalier Est > > H?pital Cardiologique Louis Pradel > > Laboratoire CREATIS - B?t. B13 > > CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 > > 28, Avenue du Doyen LEPINE > > 69677 Bron cedex FRANCE > > > > Office : +33 4 72 35 74 12 > > Cell : +33 6 69 46 73 79 > > > > ------------------------------ > The information contained in this message may be confidential and legally > protected under applicable law. The message is intended solely for the > addressee(s). If you are not the intended recipient, you are hereby > notified that any use, forwarding, dissemination, or reproduction of this > message is strictly prohibited and may be unlawful. If you are not the > intended recipient, please contact the sender by return e-mail and destroy > all copies of the original message. > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From Cyril.Mory at philips.com Wed Jul 17 04:01:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 17 Jul 2013 08:01:35 +0000 Subject: [Rtk-users] CUDA SART In-Reply-To: References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: <3B67D2F1029933428E0E93E2C2F18013350004DC@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi Simon, Yes, I'll try to reproduce my buggy case and send it over as soon as I can. Regards, Cyril De : simon.rit at gmail.com [mailto:simon.rit at gmail.com] De la part de Simon Rit Envoy? : mercredi 17 juillet 2013 09:57 ? : MORY, CYRIL Cc : rtk-users at openrtk.org Objet : Re: [Rtk-users] CUDA SART Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL > wrote: Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. _______________________________________________ Rtk-users mailing list Rtk-users at openrtk.org http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Sat Jul 27 03:28:20 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Sat, 27 Jul 2013 09:28:20 +0200 Subject: [Rtk-users] Tutorial on motion-compensated reconstruction Message-ID: Dear users, I have put together a tutorial on the use of motion compensated reconstruction in RTK: http://wiki.openrtk.org/index.php/RTK/Examples/MCCBCTReconstruction I have done my best to make it clear but don't hesitate to suggest modifications / clarifications! Simon From Cyril.Mory at philips.com Wed Jul 31 09:31:30 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 31 Jul 2013 13:31:30 +0000 Subject: [Rtk-users] Joseph back projection filter Message-ID: <3B67D2F1029933428E0E93E2C2F1801335009461@011-DB3MPN1-042.MGDPHG.emi.philips.com> Hi RTK users, I just ran into trouble with the Joseph back projection filter. It crashed with the error "Largest and buffered region must be similar". The other back projection filters do not seem to have the same limitation, so I use VoxelBasedBackProjection and it works fine, but I'm curious why this check has been introduced in the Joseph back projection filter. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From laura.trubuil at mail.medecom.fr Tue Jul 2 08:32:56 2013 From: laura.trubuil at mail.medecom.fr (Laura Trubuil) Date: Tue, 02 Jul 2013 14:32:56 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter Message-ID: <51D2C878.808@mail.medecom.fr> Dear RTK users, In the ramp filter provided by RTK: The truncationCorrection parameter's role is to correct artifacts caused by objects extending outside the scan field of view, isn't it? Or am I wrong? If I am right, how exactly does it works? Regards, Laura From simon.rit at creatis.insa-lyon.fr Tue Jul 2 09:02:46 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Tue, 2 Jul 2013 15:02:46 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter In-Reply-To: <51D2C878.808@mail.medecom.fr> References: <51D2C878.808@mail.medecom.fr> Message-ID: Hi Laura, As indicated somewhere in the header file, the truncation correction is the implementation of the method described in details in this publication http://www.ncbi.nlm.nih.gov/pubmed/10659736 Regards, Simon Rit On Tue, Jul 2, 2013 at 2:32 PM, Laura Trubuil wrote: > Dear RTK users, > In the ramp filter provided by RTK: The truncationCorrection parameter's > role is to correct artifacts caused by objects extending outside the scan > field of view, isn't it? Or am I wrong? > If I am right, how exactly does it works? > Regards, > > Laura > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users From Cyril.Mory at philips.com Tue Jul 16 03:13:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Tue, 16 Jul 2013 07:13:35 +0000 Subject: [Rtk-users] CUDA SART Message-ID: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Wed Jul 17 03:56:38 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Wed, 17 Jul 2013 09:56:38 +0200 Subject: [Rtk-users] CUDA SART In-Reply-To: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL wrote: > Hi RTK users, > > > > Has anyone used the CUDA version of SART ? I?m getting good results with > the CPU version, and completely diverging results with the CUDA version > (the results have attenuation values around 10^7 while they should be > between 0 and 1). > > I?m wondering if it?s a problem on my side or a global issue. > > > > Regards, > > ========================================== > > Cyril Mory > > PhD student at Philips Medisys and CREATIS > > > > Groupement Hospitalier Est > > H?pital Cardiologique Louis Pradel > > Laboratoire CREATIS - B?t. B13 > > CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 > > 28, Avenue du Doyen LEPINE > > 69677 Bron cedex FRANCE > > > > Office : +33 4 72 35 74 12 > > Cell : +33 6 69 46 73 79 > > > > ------------------------------ > The information contained in this message may be confidential and legally > protected under applicable law. The message is intended solely for the > addressee(s). If you are not the intended recipient, you are hereby > notified that any use, forwarding, dissemination, or reproduction of this > message is strictly prohibited and may be unlawful. If you are not the > intended recipient, please contact the sender by return e-mail and destroy > all copies of the original message. > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From Cyril.Mory at philips.com Wed Jul 17 04:01:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 17 Jul 2013 08:01:35 +0000 Subject: [Rtk-users] CUDA SART In-Reply-To: References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: <3B67D2F1029933428E0E93E2C2F18013350004DC@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi Simon, Yes, I'll try to reproduce my buggy case and send it over as soon as I can. Regards, Cyril De : simon.rit at gmail.com [mailto:simon.rit at gmail.com] De la part de Simon Rit Envoy? : mercredi 17 juillet 2013 09:57 ? : MORY, CYRIL Cc : rtk-users at openrtk.org Objet : Re: [Rtk-users] CUDA SART Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL > wrote: Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. _______________________________________________ Rtk-users mailing list Rtk-users at openrtk.org http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Sat Jul 27 03:28:20 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Sat, 27 Jul 2013 09:28:20 +0200 Subject: [Rtk-users] Tutorial on motion-compensated reconstruction Message-ID: Dear users, I have put together a tutorial on the use of motion compensated reconstruction in RTK: http://wiki.openrtk.org/index.php/RTK/Examples/MCCBCTReconstruction I have done my best to make it clear but don't hesitate to suggest modifications / clarifications! Simon From Cyril.Mory at philips.com Wed Jul 31 09:31:30 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 31 Jul 2013 13:31:30 +0000 Subject: [Rtk-users] Joseph back projection filter Message-ID: <3B67D2F1029933428E0E93E2C2F1801335009461@011-DB3MPN1-042.MGDPHG.emi.philips.com> Hi RTK users, I just ran into trouble with the Joseph back projection filter. It crashed with the error "Largest and buffered region must be similar". The other back projection filters do not seem to have the same limitation, so I use VoxelBasedBackProjection and it works fine, but I'm curious why this check has been introduced in the Joseph back projection filter. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From laura.trubuil at mail.medecom.fr Tue Jul 2 08:32:56 2013 From: laura.trubuil at mail.medecom.fr (Laura Trubuil) Date: Tue, 02 Jul 2013 14:32:56 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter Message-ID: <51D2C878.808@mail.medecom.fr> Dear RTK users, In the ramp filter provided by RTK: The truncationCorrection parameter's role is to correct artifacts caused by objects extending outside the scan field of view, isn't it? Or am I wrong? If I am right, how exactly does it works? Regards, Laura From simon.rit at creatis.insa-lyon.fr Tue Jul 2 09:02:46 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Tue, 2 Jul 2013 15:02:46 +0200 Subject: [Rtk-users] Truncation correction parameter in ramp filter In-Reply-To: <51D2C878.808@mail.medecom.fr> References: <51D2C878.808@mail.medecom.fr> Message-ID: Hi Laura, As indicated somewhere in the header file, the truncation correction is the implementation of the method described in details in this publication http://www.ncbi.nlm.nih.gov/pubmed/10659736 Regards, Simon Rit On Tue, Jul 2, 2013 at 2:32 PM, Laura Trubuil wrote: > Dear RTK users, > In the ramp filter provided by RTK: The truncationCorrection parameter's > role is to correct artifacts caused by objects extending outside the scan > field of view, isn't it? Or am I wrong? > If I am right, how exactly does it works? > Regards, > > Laura > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users From Cyril.Mory at philips.com Tue Jul 16 03:13:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Tue, 16 Jul 2013 07:13:35 +0000 Subject: [Rtk-users] CUDA SART Message-ID: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Wed Jul 17 03:56:38 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Wed, 17 Jul 2013 09:56:38 +0200 Subject: [Rtk-users] CUDA SART In-Reply-To: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL wrote: > Hi RTK users, > > > > Has anyone used the CUDA version of SART ? I?m getting good results with > the CPU version, and completely diverging results with the CUDA version > (the results have attenuation values around 10^7 while they should be > between 0 and 1). > > I?m wondering if it?s a problem on my side or a global issue. > > > > Regards, > > ========================================== > > Cyril Mory > > PhD student at Philips Medisys and CREATIS > > > > Groupement Hospitalier Est > > H?pital Cardiologique Louis Pradel > > Laboratoire CREATIS - B?t. B13 > > CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 > > 28, Avenue du Doyen LEPINE > > 69677 Bron cedex FRANCE > > > > Office : +33 4 72 35 74 12 > > Cell : +33 6 69 46 73 79 > > > > ------------------------------ > The information contained in this message may be confidential and legally > protected under applicable law. The message is intended solely for the > addressee(s). If you are not the intended recipient, you are hereby > notified that any use, forwarding, dissemination, or reproduction of this > message is strictly prohibited and may be unlawful. If you are not the > intended recipient, please contact the sender by return e-mail and destroy > all copies of the original message. > > _______________________________________________ > Rtk-users mailing list > Rtk-users at openrtk.org > http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From Cyril.Mory at philips.com Wed Jul 17 04:01:35 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 17 Jul 2013 08:01:35 +0000 Subject: [Rtk-users] CUDA SART In-Reply-To: References: <3B67D2F1029933428E0E93E2C2F1801335000277@011-DB3MPN1-043.MGDPHG.emi.philips.com> Message-ID: <3B67D2F1029933428E0E93E2C2F18013350004DC@011-DB3MPN1-043.MGDPHG.emi.philips.com> Hi Simon, Yes, I'll try to reproduce my buggy case and send it over as soon as I can. Regards, Cyril De : simon.rit at gmail.com [mailto:simon.rit at gmail.com] De la part de Simon Rit Envoy? : mercredi 17 juillet 2013 09:57 ? : MORY, CYRIL Cc : rtk-users at openrtk.org Objet : Re: [Rtk-users] CUDA SART Hi Cyril, Although we don't use SART very much, there is a test that checks that we obtain what is expected, both with and without cuda: http://my.cdash.org/index.php?project=RTK (rtksarttest and rtksartcudatest). Would you have a Shepp-Logan based test case for us? Thanks, Simon On Tue, Jul 16, 2013 at 9:13 AM, MORY, CYRIL > wrote: Hi RTK users, Has anyone used the CUDA version of SART ? I'm getting good results with the CPU version, and completely diverging results with the CUDA version (the results have attenuation values around 10^7 while they should be between 0 and 1). I'm wondering if it's a problem on my side or a global issue. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. _______________________________________________ Rtk-users mailing list Rtk-users at openrtk.org http://public.kitware.com/cgi-bin/mailman/listinfo/rtk-users -------------- next part -------------- An HTML attachment was scrubbed... URL: From simon.rit at creatis.insa-lyon.fr Sat Jul 27 03:28:20 2013 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Sat, 27 Jul 2013 09:28:20 +0200 Subject: [Rtk-users] Tutorial on motion-compensated reconstruction Message-ID: Dear users, I have put together a tutorial on the use of motion compensated reconstruction in RTK: http://wiki.openrtk.org/index.php/RTK/Examples/MCCBCTReconstruction I have done my best to make it clear but don't hesitate to suggest modifications / clarifications! Simon From Cyril.Mory at philips.com Wed Jul 31 09:31:30 2013 From: Cyril.Mory at philips.com (MORY, CYRIL) Date: Wed, 31 Jul 2013 13:31:30 +0000 Subject: [Rtk-users] Joseph back projection filter Message-ID: <3B67D2F1029933428E0E93E2C2F1801335009461@011-DB3MPN1-042.MGDPHG.emi.philips.com> Hi RTK users, I just ran into trouble with the Joseph back projection filter. It crashed with the error "Largest and buffered region must be similar". The other back projection filters do not seem to have the same limitation, so I use VoxelBasedBackProjection and it works fine, but I'm curious why this check has been introduced in the Joseph back projection filter. Regards, ========================================== Cyril Mory PhD student at Philips Medisys and CREATIS Groupement Hospitalier Est H?pital Cardiologique Louis Pradel Laboratoire CREATIS - B?t. B13 CNRS UMR5220, INSERM U1044, INSA-Lyon, Univ. Lyon 1 28, Avenue du Doyen LEPINE 69677 Bron cedex FRANCE Office : +33 4 72 35 74 12 Cell : +33 6 69 46 73 79 ________________________________ The information contained in this message may be confidential and legally protected under applicable law. The message is intended solely for the addressee(s). If you are not the intended recipient, you are hereby notified that any use, forwarding, dissemination, or reproduction of this message is strictly prohibited and may be unlawful. If you are not the intended recipient, please contact the sender by return e-mail and destroy all copies of the original message. -------------- next part -------------- An HTML attachment was scrubbed... URL: