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<DIV><FONT size=2>Hello, I am a newbie of VTK. Here I have some questions about
surface rendering.</FONT></DIV>
<DIV><FONT face=宋体 size=2></FONT> </DIV>
<DIV><FONT size=2>I have some DICOM images from a CT study. I want to visualize
them with surface rendering technique. I am interested in the surfaces of
the body and some inside organs, and the body should be displayed in
semi-transparent mode in order to make the inside organs visible. Can anyone
give me some suggestions about how to do this with VTK? Do I need to mark the
contour of the body and organs in each slice manually? Are there some similar
samples?</FONT></DIV>
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<DIV><FONT size=2>Another requirement is that, I'd like to display two or
more studies in one window for comparison. After that, I will pick some
interested points from the volume using mouse. The coordinates of the picking
point is wanted. The final purpose is to calculate the shift vector of the 3D
point pair from two studies, these two points stands for the same physical part
of human body or organ. To ensure the shift vector make sense, the
coorndinates of the two volumes must be exactly the same.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Now I can read files of DICOM format and get the original
gray value matrices of each slice. But I wonder how to visualize the
multiple surfaces from these slieces and how to retrieve the coordinates of the
picking points from the two volumes.</FONT></DIV>
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<DIV><FONT size=2>Any suggestion will be appreciated. Thand you in
advance.</FONT></DIV>
<DIV><FONT face=宋体 size=2></FONT> </DIV>
<DIV><FONT size=2>Jiye An</FONT></DIV></FONT></DIV></BODY></HTML>