US 11,055,832 B2
Image banding correction in high dynamic range imaging
Yihe Yao, San Diego, CA (US); Tao Ma, San Diego, CA (US); Yawen Chi, Taoyuan (TW); Yan-Jing Lei, New Taipei (TW); and Lei Ma, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Jul. 30, 2019, as Appl. No. 16/526,760.
Prior Publication US 2021/0035272 A1, Feb. 4, 2021
Int. Cl. G06T 5/00 (2006.01); H04N 5/235 (2006.01); G06T 5/50 (2006.01); G06T 7/11 (2017.01)
CPC G06T 5/009 (2013.01) [G06T 5/50 (2013.01); G06T 7/11 (2017.01); H04N 5/2355 (2013.01); G06T 2207/20208 (2013.01); G06T 2207/20221 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A method for performing image banding correction, comprising:
receiving, by one or more processors, first and second image data, the first image data being captured with a first exposure parameter, and the second image data being captured with a second exposure parameter, the second exposure parameter being different than the first exposure parameter;
computing, by the one or more processors, first partition values for a first plurality of partitions of the first image data, and computing, by the one or more processors, second partition values for a second plurality of partitions of the second image data;
comparing, by the one or more processors, the first partition values for each of the first plurality of partitions with corresponding ones of the second partition values for each of the second plurality of partition;
determining, by the one or more processors, banding error values based on the comparison; and
performing, by the one or more processors, a correction operation on the first image data based on the banding error values.