公开(公告)号：US20230394717A1

公开(公告)日：2023-12-07

申请号：US18233649

申请日：2023-08-14

Applicant: GE Precision Healthcare LLC

Inventor： Vincent Bismuth ,  Sylvain Bernard ,  Giang-Chau Ngo ,  Charlotte Delmas ,  Solène Coeuret

IPC: G06T11/00 ,  G06T15/20 ,  G06T7/00

CPC classification number: G06T11/008 ,  G06T15/205 ,  G06T2207/30068 ,  G06T2207/10081 ,  G06T2207/10088 ,  G06T7/0012

Abstract: An image processing system and method is provided for correcting artefacts within a three-dimensional (3D) volume reconstructed from a plurality of two-dimensional (2D) projection images of an object. The system and method is implemented on an imaging system having a processing unit operable to control the operation of a radiation source and a detector to generate a plurality of 2D projection images. The system also includes a memory connected to the processing unit and storing processor-executable code that when executed by the processing unit operates to reconstruct the 3D volume from the plurality of 2D projection images, the 3D volume defined in a pseudo parallel geometry based on a zero angle from the plurality of 2D projection images, wherein reconstructing the 3D volume comprises reconstructing a 3D virtual object defined in a pseudo parallel geometry based on the zero angle from the plurality of 2D projection images, and correcting the 3D virtual object to form the 3D volume.