<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 style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">you are generally right, but in this algorithm when optimizer finds the best results it will be stoped by program not to wait 900 million iterations . I didn't think that it would need 900 million iterations. I thought at the beginning just assign 900 million any how it would not need 900 million iterations. It has been still runnning :((<BR><BR>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">----- Original Message ----<BR>From: Robert Tamburo <rjtst21@pitt.edu><BR>To: tony hakki <tony2007vtk@yahoo.com><BR>Cc: insight-users@itk.org<BR>Sent: Friday, March 30, 2007 4:39:08 PM<BR>Subject: Re: [Insight-users] How long does it take do you think ?<BR><BR>
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<DIV>I've never used this algorithm but 900 million iterations seems like insanity. Assume that each iteration takes either 1 millisecond (best case scenario?) or 1 second (worst case scenario?) then calculate how long 900 million iterations will take. You will probably want to rethink the number of iterations you're using. You may also want to set up a convergence criteria to stop the registration. You may find that you only need a handful iterations to achieve acceptable results.</DIV>
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<DIV>On Mar 30, 2007, at 3:34 AM, tony hakki wrote:</DIV><BR class=Apple-interchange-newline>
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<DIV>hello ;</DIV>
<DIV>I have tried to implement point set to image registration. My point set has 151 points(x,y,z),and the image 3D .raw image size is
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<DIV class=O1><SPAN style="FONT-SIZE: 16pt"><FONT size=3>size = 329 527 181 and the resolution is res= <SPAN style="FONT-SIZE: 17pt">0.200068 0.200068 0.200068<SPAN> .Is there anybody who is expert on registration process to guess how long does computer run to finish registration process? my computer has 2.21 GHz processor, and 3 GB Ram . I assigned numberofiteration as 900.000.000 (900 million) and my computer has been runnning for 20 hours(yes ,20 hours:))),do you think this is normal?</SPAN></SPAN></FONT></SPAN></DIV>
<DIV class=O1><SPAN style="FONT-SIZE: 16pt"><FONT size=3><SPAN style="FONT-SIZE: 17pt"><SPAN>Thanks</SPAN></SPAN></FONT></SPAN></DIV>
<DIV class=O1><SPAN style="FONT-SIZE: 16pt"><FONT size=3><SPAN style="FONT-SIZE: 17pt"><SPAN>Tony </SPAN></SPAN></FONT></SPAN></DIV>
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