公开(公告)号：US10438379B2

公开(公告)日：2019-10-08

申请号：US15117550

申请日：2015-02-18

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Xiyun Song ,  Jinghan Ye ,  Zhiqiang Hu ,  Changhong Dai ,  Varun Verma ,  Chi-Hua Tung

IPC: G06T11/00 ,  G06T5/00 ,  G06T5/20

Abstract: A system (10) and a method (100) iteratively reconstruct an image of a target volume of a subject. In each iteration of a plurality of iterations, an estimate image of the target volume (54) is forward projected (58) and compared (62) to received event data (44) to determine a discrepancy (64). The discrepancy (64) is back projected (66) and the back projection (68) updates (70) the estimate image (54). In at least one iteration, the estimate image (54) is filtered (52) in the image domain prior to being back projected.