公开(公告)号：US20220327665A1

公开(公告)日：2022-10-13

申请号：US17225672

申请日：2021-04-08

Applicant: CANON MEDICAL SYSTEMS CORPORATION

Inventor： Chung CHAN ,  Li YANG ,  Wenyuan Ql ,  Evren ASMA ,  Jeffrey KOLTHAMMER ,  Yi QIANG

IPC: G06T5/00 ,  G06T7/00 ,  G06N3/08

Abstract: Existing, low quality images can be restored using reconstruction or a combination of post-reconstruction techniques to generate a real patient phantom. The real patient phantom (RPP) can then be simulated in Monte Carlo simulations of a higher performance system and a lower performance system. Alternatively, the RPP can be simulated in the higher performance system, and a real scan can be performed by an existing, lower performance system. The higher performance system can be differentiated from the lower performance system in a variety of ways, including a higher resolution time of flight measurement capability, a greater sensitivity, smaller detector crystals, or less scattering. A neural network can be trained using the images produce by the higher performance system as the target, and the images produced by the lower performance system as the input. After training, the trained neural network can be used to output input images taken in a lower performance system with higher performance system characteristics.