Showing posts with label filtered back projection. Show all posts
Showing posts with label filtered back projection. Show all posts
Tuesday, January 8, 2013
DIY X-ray CT scanner controlled by an Arduino
I built a CT scanner from an x-ray tube that I bought on eBay, a stepper motor, a large ring bearing, and an Arduino. I used a phosphor screen and my camera to capture x-ray shadow images of a frozen chicken, while the Arduino and stepper motor rotated the chicken by 8 degrees between shots. The resulting 45 images were combined via filtered back projection to create a 3D volume reconstruction of the chicken.
Software used:
Panasonic SilkyPix (for .RW2 development)
Adobe Bridge/Photoshop for image perspective correction
Cygwin/Octave for filtered backprojection
Cone Beam Computed Tomography algorithm
http://www.mathworks.com/matlabcentral/fileexchange/35548-3d-cone-beam-ct-cbct-projection-backprojection-fdk-mlem-reconstruction-codes-for-matlab-students
3D Slicer for visualization and volume rendering
http://www.slicer.org/
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