The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 29, 2026

Filed:

Aug. 31, 2023
Applicants:

Nuctech Company Limited, Beijing, CN;

Tsinghua University, Beijing, CN;

Inventors:

Zhiqiang Chen, Beijing, CN;

Li Zhang, Beijing, CN;

Hu Tang, Beijing, CN;

Yunda Sun, Beijing, CN;

Xin Jin, Beijing, CN;

Zhenhua Zhao, Beijing, CN;

Le Shen, Beijing, CN;

Assignees:

NUCTECH COMPANY LIMITED, Beijing, CN;

TSINGHUA UNIVERSITY, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 12/20 (2026.01); A61B 6/00 (2024.01); G06T 5/50 (2006.01); G06T 7/11 (2017.01);
U.S. Cl.
CPC ...
G06T 12/20 (2026.01); A61B 6/5241 (2013.01); G06T 5/50 (2013.01); G06T 7/11 (2017.01); G06T 2207/10081 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/20084 (2013.01); G06T 2207/20221 (2013.01);
Abstract

A static CT apparatus and an imaging method for the same are provided. The imaging method includes: acquiring initial projection data of an inspected object at different angles by using a distributed ray source and a detector, where the initial projection data includes projection data that is directly obtained by the detector based on the rays emitted from a plurality of ray source points; obtaining a first CT image using a reconstruction algorithm according to the acquired initial projection data; dividing the first CT image into N first sub-images, where N is a positive integer greater than or equal to 1, and a union of the N first sub-images covers the entire first CT image; optimizing the N first sub-images to obtain N second sub-images; and merging the N second sub-images to obtain a second CT image.


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