METHOD AND SYSTEM FOR ROBUST MOTION CORRECTION OF IMAGE DATA

摘要

A method for imaging a target volume in a subject is presented. The method includes computing an evolving mean image by iteratively averaging a plurality of pixels corresponding to a plurality of gated images corresponding to the target volume. Further, the method includes iteratively computing one or more transforms for aligning one or more of the plurality of gated images to the evolving mean image based on at least one non-local displacement coherence penalty and at least one non-local velocity coherence penalty until convergence of the evolving mean image and the iteratively computed transforms. In addition, the method includes generating one or more motion-corrected images corresponding to the target volume based on the converged transforms. The method also includes displaying the one or more motion-corrected images, the converged mean image, or a combination thereof, on a display device.