US 11,790,578 B2
System and method for computed tomography
Wenjing Cao, Shanghai (CN); and Stanislav Zabic, Houston, TX (US)
Assigned to SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed by SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed on Dec. 13, 2021, as Appl. No. 17/644,087.
Application 17/644,087 is a continuation of application No. 16/852,609, filed on Apr. 20, 2020, granted, now 11,216,992.
Application 16/852,609 is a continuation of application No. 16/010,507, filed on Jun. 17, 2018, granted, now 10,628,974, issued on Apr. 21, 2020.
Application 16/010,507 is a continuation of application No. 15/316,886, granted, now 10,002,447, issued on Jun. 19, 2018, previously published as PCT/CN2016/082829, filed on May 20, 2016.
Prior Publication US 2022/0108499 A1, Apr. 7, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06K 9/00 (2022.01); G06T 11/00 (2006.01); A61B 6/03 (2006.01); G01N 23/046 (2018.01); A61B 6/00 (2006.01); G06T 5/00 (2006.01); G06T 5/20 (2006.01); G06T 5/50 (2006.01)
CPC G06T 11/008 (2013.01) [A61B 6/032 (2013.01); A61B 6/5205 (2013.01); A61B 6/5211 (2013.01); G01N 23/046 (2013.01); G06T 5/002 (2013.01); G06T 5/20 (2013.01); G06T 11/003 (2013.01); G06T 11/006 (2013.01); G01N 2223/401 (2013.01); G01N 2223/419 (2013.01); G06T 5/50 (2013.01); G06T 2207/10081 (2013.01); G06T 2207/20224 (2013.01); G06T 2211/421 (2013.01); G06T 2211/424 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method implemented on at least one machine each of which has at least one processor and at least one storage device, the method comprising:
obtaining a first image based on a set of raw data;
obtaining a second image based on the first image, the second image being extended from the first image;
generating a second sinogram by applying a first filter on a first sinogram associated with the first image; and
performing, based on the second sinogram, the second image and the set of raw data, iterative reconstruction to generate a third image.