Title:
SYSTEMS AND METHODS FOR CORRECTING PROJECTION IMAGES IN COMPUTED TOMOGRAPHY IMAGE RECONSTRUCTION
Document Type and Number:
WIPO Patent Application WO/2019/090541
Kind Code:
A1
Abstract:
A method for correcting projection images in CT image reconstruction is provided. The method may include obtaining a plurality of projection images of a subject (510). Each of the plurality of projection images may correspond to one of the plurality of gantry angles. The method may further include correcting a first projection image of the plurality of projection images according to a process for generating a corrected projection image (530). The process may include performing, based on the first projection image and a second projection image of the plurality of projection images, a first correction on the first projection image to generate a preliminary corrected first projection image (610). The process may also include performing, based on at least part of the preliminary corrected first projection image, a second correction on the preliminary corrected first projection image to generate a corrected first projection image corresponding to the first gantry angle (620).
Inventors:
ZHU JIANWEI (CN)
YANG HONGCHENG (CN)
SUN HAINING (CN)
MALTZ JONATHAN (US)
YANG HONGCHENG (CN)
SUN HAINING (CN)
MALTZ JONATHAN (US)
Application Number:
PCT/CN2017/110032
Publication Date:
May 16, 2019
Filing Date:
November 08, 2017
Export Citation:
Assignee:
SHENZHEN UNITED IMAGING HEALTHCARE CO LTD (CN)
International Classes:
A61B6/03
Foreign References:
| US20110142312A1 | 2011-06-16 | |||
| CN103679642A | 2014-03-26 | |||
| CN106251313A | 2016-12-21 | |||
| US20170251995A1 | 2017-09-07 | |||
| JP5697970B2 | 2015-04-08 |
Attorney, Agent or Firm:
METIS IP (CHENGDU) LLC (CN)
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