Patent ID: 8379947

Claim:
A method of generating a reconstructed spatio-temporal image, the method comprising the steps of: (a) generating a projection domain representation based on an image domain representation of an object; (b) determining a desired direction of improvement in the projection domain representation; (c) transforming the desired direction of improvement to a sparse domain; (d) obtaining a sparse domain representation based on the transformed desired direction of improvement in the sparse domain; (e) generating an updated image domain representation based on the sparse domain representation; (f) repeating steps (a) through (e) one or more times, each such time using the updated image domain representation generated in step (e) to generate the projection domain representation in step (a), until the updated image representation generated in step (e) satisfies one or more image quality criteria; and (g) outputting the updated image domain representation as the reconstructed spatio-temporal image; wherein steps (a) through (g) are performed by a processing device comprising a processor coupled to a memory.