From s.cimen at sheffield.ac.uk Wed Jun 14 08:32:10 2017 From: s.cimen at sheffield.ac.uk (Serkan Cimen) Date: Wed, 14 Jun 2017 08:32:10 -0400 Subject: [Rtk-users] CoronARe: a Coronary Artery Reconstruction Challenge - Call for Participation Message-ID: ** Please excuse multiple copies.** Dear RTK users, We are organizing CoronARe: a Coronary Artery Reconstruction Challenge in conjunction with RAMBO [1] at MICCAI?17. CoronARe seeks to objectively compare current state-of-the-art methods as we believe that the availability of public benchmarks will contribute to drive forward this area. CoronARe ranks state-of-the-art methods in symbolic and tomographic coronary artery reconstruction from interventional C-arm rotational angiography. Specifically, we will benchmark the performance of the methods using accurately pre-processed data, and study the effects of imperfect pre-processing conditions (segmentation and background subtraction errors). The evaluation will be performed in a controlled environment using digital phantom images. For an in-depth description of the participation process kindly refer to: https://challenge.kitware.com/#challenge/58c9469ecad3a532cfa20dd3 The challenge results and respective winners will be presented during the RAMBO workshop on September 10th 2017. Submission to CoronARe will remain open after MICCAI?17, however, submissions later than September 5th, 2017 will not be considered for this competition. A reference to a previously published paper is sufficient for participation. We plan on inviting authors of successful methods to co-author a section in an article about the challenge, describing their competing method. Please feel free to forward this email to any colleague who might be interested. We are looking forward to your participation, Mathias Unberath (a), Serkan ?imen (b) Andreas Maier (a), Alejandro F Frangi (b) (a) Pattern Recognition Lab, Friedrich-Alexander-University Erlangen-Nuremberg (b) Center for Computational Imaging and Simulation Technologies in Biomedicine, University of Sheffield [1] https://sites.google.com/view/miccai-rambo2017 -------------- next part -------------- An HTML attachment was scrubbed... URL: From boursier at cppm.in2p3.fr Tue Jun 20 09:08:11 2017 From: boursier at cppm.in2p3.fr (Yannick BOURSIER) Date: Tue, 20 Jun 2017 15:08:11 +0200 (CEST) Subject: [Rtk-users] Forward and Back projections in 3D parallel geometry Message-ID: <759210453.241685.1497964091568.JavaMail.zimbra@cppm.in2p3.fr> Hi all, In an old archive (March 2013), it was announced that only rtkfdk was working correctly with a parallel beam geometry (defined by artificially setting the SourceToDetectorDistance to 0.). It seems that it is still not possible to execute forward and backward projections with such a geometry, is it true, or did I miss something ? I've just checked all the archives without finding any clue about that problem. Could you help me please ? Thanks in advance, Best Yannick Boursier From simon.rit at creatis.insa-lyon.fr Tue Jun 20 09:35:59 2017 From: simon.rit at creatis.insa-lyon.fr (Simon Rit) Date: Tue, 20 Jun 2017 15:35:59 +0200 Subject: [Rtk-users] Forward and Back projections in 3D parallel geometry In-Reply-To: <759210453.241685.1497964091568.JavaMail.zimbra@cppm.in2p3.fr> References: <759210453.241685.1497964091568.JavaMail.zimbra@cppm.in2p3.fr> Message-ID: Hi Yannick, Yes, that's correct. It should not be too difficult to implement, at least on the CPU, now that we have iterators with the geometry , but I still haven't done it. In practice, I do a pseudo parallel geometry when I need one by setting a large distance between the source and the detector. I'll post a message on the mailing list when the real parallel geometry is implemented. Simon On Tue, Jun 20, 2017 at 3:08 PM, Yannick BOURSIER wrote: > Hi all, > > In an old archive (March 2013), it was announced that only rtkfdk was > working correctly with a parallel beam geometry (defined by artificially > setting the SourceToDetectorDistance to 0.). > > It seems that it is still not possible to execute forward and backward > projections with such a geometry, is it true, or did I miss something ? > I've just checked all the archives without finding any clue about that > problem. > Could you help me please ? > > Thanks in advance, > Best > Yannick Boursier > _______________________________________________ > Rtk-users mailing list > Rtk-users at public.kitware.com > http://public.kitware.com/mailman/listinfo/rtk-users > -------------- next part -------------- An HTML attachment was scrubbed... URL: