US 11,717,248 B2
Systems and methods for image generation
Zhicong Yu, Houston, TX (US); Yuan Bao, Shanghai (CN); Dajun Wang, Shanghai (CN); and Alexander Zamyatin, Cleveland, OH (US)
Assigned to SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed by SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed on Mar. 29, 2021, as Appl. No. 17/215,114.
Application 17/215,114 is a continuation of application No. 16/236,595, filed on Dec. 30, 2018, granted, now 10,959,695.
Application 16/236,595 is a continuation of application No. PCT/CN2018/107614, filed on Sep. 26, 2018.
Prior Publication US 2021/0212649 A1, Jul. 15, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. A61B 6/00 (2006.01); A61B 6/03 (2006.01); G06T 11/00 (2006.01)
CPC A61B 6/5205 (2013.01) [A61B 6/032 (2013.01); G06T 11/006 (2013.01); G06T 11/008 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
at least one storage device including a set of instructions; and
at least one processor in communication with the at least one storage device, wherein when executing the instructions, the at least one processor is configured to cause the system to perform operations including:
obtaining projection data of an object, wherein the projection data is generated by a scanner via scanning the object which is located in a scanning region of the scanner;
generating, based on a first weighting function, a first image corresponding to the object by back-projecting the projection data, wherein the first image includes a first region corresponding to at least a part of the object;
generating, based on a second weighting function, a second image corresponding to the object by back-projecting the projection data, wherein the second image includes a second region corresponding to the at least part of the object, and the second region of the second image presenting a better CT number uniformity than the first region of the first image; and
generating a third image of the object based on the first image and the second image.