<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt"><div>Hi Özgür,<br><br>Many thanks for your suggestion.<br><br>I have go through all the examples available, but mostly are not applicable because of Linux OS system required. I am using Window7 currently. However, i managed to compile the VideoFrameGrabberAndViewerOpenIGTLink, it works fine although i haven't test with USG machine connection, my question is that the network cable Rj41 is the same as LAN / Ethernet cable? For OpenIGTLink connection, why i need two computers? Can i connect the LAN cable both ended directly at USG machine and Computer? or i must have any other converter?<br><br>Second question, I have HDMI (high definition multimedia interface) connector on my laptop. Is this kind of connector consider as one of the firewire cable ? If yes, is that possible for me to run
igstkImagingSourceImager/Tool under Window 7 instead of Linux OS system?<br><br>Thank you for your time and suggestion.<br><br><br>best regards,<br>Lai<br><br><br><br></div><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Özgür Güler <ozgur.guler.phd@gmail.com><br><b><span style="font-weight: bold;">To:</span></b> l khinwee <khinwee@yahoo.com><br><b><span style="font-weight: bold;">Cc:</span></b> Patrick Cheng <cheng@isis.georgetown.edu>; igstk-users@public.kitware.com<br><b><span style="font-weight: bold;">Sent:</span></b> Wed, March 16, 2011 6:37:31 PM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [IGSTK-Users] IGSTK: Polaris and recorded images synchronization<br></font><br>
hi Lai,<div><br></div><div>no, unfortunately you can not use the webcam implementation, </div><div>but</div><div><br></div><div>1) currently the igstkCompressedDVImager/Tool works in Linux over firewire.</div><div>i.e. if you can connect your US machine to a videograbber/converter and the videograbber/converter to your PC over firewire then it will work (prerequisite: uncompressed DV format) </div>
<div><br></div><div>2) there is also a igstkImagingSourceImager/Tool which works with this converter</div><div><span><a target="_blank" href="http://www.theimagingsource.com/de_DE/products/converters/dfgusb2lt/">http://www.theimagingsource.com/de_DE/products/converters/dfgusb2lt/</a> (firewire version)</span></div>
<div>you can connect your US machine over Composite Video, S-Video to the converter and connect the converter with firewire to your PS.</div><div><br></div><div>3)You can also use two PCs, one is connected to the US device and grabs the videoframes and sends the videoframes using the openIGTLink protocol. The second PC which is connected with a network cable (RJ-41) to the image sending PC uses igstkOpenIGTLingkImager/Tool to receive the images.</div>
<div><br></div><div>4)Build your own igstk_XXX_Imager/Tool, which is not that hard at all.</div><div><br></div><div>regards,</div><div>Özgür</div><div><br></div><div> </div><div><br><br><div class="gmail_quote">2011/3/16 l khinwee <span dir="ltr"><<a rel="nofollow" ymailto="mailto:khinwee@yahoo.com" target="_blank" href="mailto:khinwee@yahoo.com">khinwee@yahoo.com</a>></span><br>
<blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"><div><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div>hi Özgür,<br><br>thank you for your suggestion.<br>
<br>But I am not using any webcam to recording the images frames, i am using a video frame grabber (USB to computer in window, TV port connect to Ultrasound machine's TV port connection). So it this still can be done by using the classes below? Or other option?<br>
<pre>/Source/igstkWebcamWinImager.cxx<br>/Source/igstkWebcamWinImager.h<br>/Source/igstkWebcamWinImagerTool.cxx<br>/Source/igstkWebcamWinImagerTool.h<br></pre>Thank you.<br><br>regards,<br>Lai<br></div><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;">
<div class="hm"><br></div><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"><div class="hm"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Özgür Güler
<<a rel="nofollow" ymailto="mailto:ozgur.guler.phd@gmail.com" target="_blank" href="mailto:ozgur.guler.phd@gmail.com">ozgur.guler.phd@gmail.com</a>><br><b><span style="font-weight: bold;">To:</span></b> l khinwee <<a rel="nofollow" ymailto="mailto:khinwee@yahoo.com" target="_blank" href="mailto:khinwee@yahoo.com">khinwee@yahoo.com</a>><br>
<b><span style="font-weight: bold;">Cc:</span></b> Patrick Cheng <<a rel="nofollow" ymailto="mailto:cheng@isis.georgetown.edu" target="_blank" href="mailto:cheng@isis.georgetown.edu">cheng@isis.georgetown.edu</a>>; <a rel="nofollow" ymailto="mailto:igstk-users@public.kitware.com" target="_blank" href="mailto:igstk-users@public.kitware.com">igstk-users@public.kitware.com</a><br>
<b><span style="font-weight: bold;">Sent:</span></b> Tue, March 15, 2011 5:26:05 PM</div><div class="im"><br><b><span style="font-weight: bold;">Subject:</span></b> Re: [IGSTK-Users] IGSTK: Polaris and recorded images synchronization<br>
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<p>hi Lai,</p>
<p>you can find usefull information here: <br><span><span>
<a target="_blank" href="http://public.kitware.com/IGSTKWIKI/index.php/VideoGrabber_classes">http://public.kitware.com/IGSTKWIKI/index.php/VideoGrabber_classes</a></span></span></p>
<p>there is only one stable implementation of the videoimager working with a standard webcam using opencv's interface in IGSTK.</p>
<p>In IGSTKSandbox you will find more examples working with compressed DV (endoscope, camcorder), Terason Ultrasound, openIGTLink, imaging source video grabber. </p>
<p>Currently I am dealing with image to position synchronization too using polaris and an endoscope over firewire in linux. </p>
<p>I hope this helps,<br>
regards,<br>
Özgür</p>
<div class="gmail_quote">Am 15.03.2011 14:40 schrieb "l khinwee" <<a rel="nofollow" ymailto="mailto:khinwee@yahoo.com" target="_blank" href="mailto:khinwee@yahoo.com">khinwee@yahoo.com</a>>:<br></div>
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</div></blockquote></div><br><br clear="all"><br>-- <br><div>*********************************************************************</div><div>Dipl.-Ing. Özgür Güler, MSc.</div><div>Research Assistant</div><div>4D-Visualization Laboratory</div>
<div>Univ. ENT Clinic</div><div>Innsbruck Medical University</div><div>Anichstr. 35, A-6020 Innsbruck, Austria</div><div><br></div><div>tel.: +43 512 504 23428, fax.: +43 512 504 25231</div><div><br></div><div><a rel="nofollow" target="_blank" href="http://voxelmaster.eu">voxelmaster.eu</a></div>
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