3D Tilted projection
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Is there any Matlab script to get 2D projections of a 3D matrix after rotating the 3D matrix X degrees over it self?
Actually I need to build a simulator for the Electron Tomography Image acquisition, In which a 2D images of an object are taken every time the object is rotated over it self for X degree from -A to +A Degree, as in the Image below. http://media.wiley.com/CurrentProtocols/PS/ps1702/ps1702-fig-0009-1-full.jpg
I would very grateful for your help.
wish you a nice weekend.
Alan
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Bjorn Gustavsson
2011-12-19
0 个投票
From the looks of your figures it seems as if you have parallel beam projection geometry. For the 2-D-to-1-D case your projections would be calculated with the Radon transform. Slightly depending on your exact geometry you might get away with a number of stacked radon transforms, all for various slices along your axis of rotation. Or you might have to make a 3-D version of radon.
HTH.
2 个评论
Alan AF
2011-12-19
Bjorn Gustavsson
2011-12-19
Perhaps:
I = radon(log(f))
Then your Radon-inverse of I will give you log(f).
更多回答（2 个）
bym
2011-12-16
if you have the image processing toolbox take a look at
maketform()
Sean de Wolski
2011-12-19
doc iradon
will likely be your friend.
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