公开(公告)号：US11340177B2

公开(公告)日：2022-05-24

申请号：US15733630

申请日：2020-01-20

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： Zhiqiang Chen ,  Li Zhang ,  Zhenhua Zhao ,  Yunda Sun ,  Xin Jin ,  Wuyang Liang

IPC分类号： G01N23/00 ,  G01D18/00 ,  G01N23/046 ,  A61B6/03 ,  A61B6/00 ,  G01V5/00 ,  G01V13/00

摘要： Disclosed are calibration assembly and calibration method of calibrating geometric parameters of a CT apparatus. The calibration assembly includes at least one calibration unit each including a plurality of calibration wires, and the plurality of calibration wires are arranged regularly in a same plane. The calibration assembly is easy to be processed and can be used to calibrate geometric parameters of a CT apparatus, and the calibration operations are simple and easy to be implemented.

公开(公告)号：US20210223188A1

公开(公告)日：2021-07-22

申请号：US15733630

申请日：2020-01-20

申请人： Nuctech Company Limited ,  Tsinghua University

发明人： Zhiqiang Chen ,  Li Zhang ,  Zhenhua Zhao ,  Yunda Sun ,  Xin Jin ,  Wuyang Liang

IPC分类号： G01N23/046 ,  G01V13/00 ,  G01V5/00 ,  A61B6/03 ,  A61B6/00

摘要： Disclosed are calibration assembly and calibration method of calibrating geometric parameters of a CT apparatus. The calibration assembly includes at least one calibration unit each including a plurality of calibration wires, and the plurality of calibration wires are arranged regularly in a same plane. The calibration assembly is easy to be processed and can be used to calibrate geometric parameters of a CT apparatus, and the calibration operations are simple and easy to be implemented.