Algebric reconstruction technique in computed tomography

I have a CT projection data of 128*64 obtained by projection from 0 to 180.

so number of projectons = 128; image size = 64

Can any body tell me now how can i use Algeabric reconstruction technique to backproject the image????

Answer 1

[sixwwwwww]

This technique is already implemented by someone which you can find in the following link:

Reconstruction of image from projections by Algebraic Reconstruction Technique

May be it is helpful for you