公开(公告)号：US20240046459A1

公开(公告)日：2024-02-08

申请号：US18265685

申请日：2020-12-08

Applicant: SHENZHEN INSTITUTES OF ADVANCED TECHNOLOGY

Inventor： Zhanli HU ,  Hairong ZHENG ,  Dong LIANG ,  Yongfeng YANG ,  Xin LIU ,  Yingjie XU

IPC: G06T7/00 ,  G06V10/762

CPC classification number: G06T7/0012 ,  G06V10/762 ,  G06T2207/10088 ,  G06T2207/10104

Abstract: A low-dose PET image restoration method and system, a device, and a medium are provided. The method includes: S1, performing blocking processing on a training image comprising a low-dose PET image, an MR image, and a standard-dose PET image to obtain a first patch, and performing first preprocessing on the first patch to obtain a second patch; S2, obtaining, according to the second patch, a first joint dictionary by means of sparse coding and dictionary updating; and S3, restoring the low-dose PET image to a restored image of the standard-dose PET image according to the first joint dictionary.