GPU calculation : step 1

Computing an image from a sinogram takes us an average of 25s per image. The CPU we use is an IntelCore i7-3960X and our images are 2500x2500.

Fig .1 : Intel Core i7-3960X, state of the art CPU

The bottleneck of our code is the inverse Radon transform. We would like to create a version of this function running on the GPU in order to parallelize the calculation.

Here are two interesting publications dealing with the subject :

• Real time Radon transform
• Computation of Inverse Radon Transform on Graphics Cards