US 11,893,738 B2
System and method for splicing images
Yang Hu, Shanghai (CN); Jie Niu, Shanghai (CN); Liang Xu, Shanghai (CN); Yecheng Han, Shanghai (CN); Hanyu Wang, Shanghai (CN); Yueyan Bian, Shanghai (CN); Wanli Teng, Shanghai (CN); Kai Cui, Shanghai (CN); and Le Yang, Shanghai (CN)
Assigned to SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed by SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD., Shanghai (CN)
Filed on Aug. 15, 2022, as Appl. No. 17/819,925.
Application 17/819,925 is a continuation of application No. 16/806,207, filed on Mar. 2, 2020, granted, now 11,416,993.
Application 16/806,207 is a continuation of application No. 15/649,819, filed on Jul. 14, 2017, granted, now 10,580,135, issued on Mar. 3, 2020.
Claims priority of application No. 201610551631.1 (CN), filed on Jul. 14, 2016; application No. 201610875628.5 (CN), filed on Sep. 30, 2016; application No. 201610875710.8 (CN), filed on Sep. 30, 2016; application No. 201610877441.9 (CN), filed on Sep. 30, 2016; application No. 201610877463.5 (CN), filed on Sep. 30, 2016; application No. 201610916842.0 (CN), filed on Sep. 30, 2016; and application No. 201610916844.X (CN), filed on Sep. 30, 2016.
Prior Publication US 2022/0392072 A1, Dec. 8, 2022
Int. Cl. G06T 7/00 (2017.01); G06T 7/11 (2017.01); G06T 7/174 (2017.01); G06T 7/33 (2017.01)
CPC G06T 7/0014 (2013.01) [G06T 7/11 (2017.01); G06T 7/174 (2017.01); G06T 7/33 (2017.01); G06T 7/97 (2017.01); G06T 2207/10081 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for correcting grayscale of an image implemented on a computing device including at least one processor and a storage, the method comprising:
determining a first region of interest (ROI) in a first image and a second ROI in a second image;
determining a first overlapping region of the first image and the second image in the first image and a second overlapping region of the first image and the second image in the second image;
determining a first intersection region of the first ROI and the first overlapping region in the first image and a second intersection region of the second ROI and the second overlapping region in the second image;
determining the first image as a reference image;
determining a first grayscale range of the first intersection region and a second grayscale range of the second intersection region;
determining a correction slope based on the first grayscale range and the second grayscale range; and
correcting a grayscale of the second ROI in the second image based on the correction slope.