	US 12,439,094 B2
	Pre-analysis based image compression methods
Shurun Wang, Beijing (CN); Zhao Wang, Hangzhou (CN); Yan Ye, San Diego, CA (US); and Shiqi Wang, Hong Kong (HK)
Assigned to Alibaba Damo (Hangzhou) Technology Co., Ltd., Hangzhou (CN)
Filed by Alibaba Damo (Hangzhou) Technology Co., Ltd., Zhejiang (CN)
Filed on Sep. 29, 2023, as Appl. No. 18/478,680.
Claims priority of provisional application 63/378,888, filed on Oct. 10, 2022.
Prior Publication US 2024/0121445 A1, Apr. 11, 2024
Int. Cl. H04N 7/12 (2006.01); H04N 19/119 (2014.01); H04N 19/14 (2014.01); H04N 19/172 (2014.01); H04N 19/176 (2014.01); H04N 19/42 (2014.01); H04N 19/85 (2014.01); H04N 19/124 (2014.01)

CPC H04N 19/85 (2014.11) [H04N 19/119 (2014.11); H04N 19/14 (2014.11); H04N 19/172 (2014.11); H04N 19/176 (2014.11); H04N 19/42 (2014.11); H04N 19/124 (2014.11)]

18 Claims

1. An image data processing method, comprising:

receiving a video sequence;

encoding one or more input pictures associated with the video sequence; and

generating a bitstream,

wherein the encoding comprises:

performing instance segmentation of an input picture, to generate one or more segment masks;

combining the one or more segment masks to generate a merged mask;

extracting, from the input picture, a region comprising the merged mask; and

compressing image data representing the extracted region, wherein the extracted region comprises one or more pixels adjacent to the merged mask.