US 12,335,507 B2
Image encoding device and weighted prediction image encoding method
Shao-Bo Zhang, Shanghai (CN); Cheng-Wei Zheng, Shanghai (CN); Jian-Qiang Du, Shanghai (CN); and Zhen-Bao Huang, Shanghai (CN)
Assigned to SIGMASTAR TECHNOLOGY LTD., Fujian (CN)
Filed by SigmaStar Technology Ltd., Fujian (CN)
Filed on Nov. 3, 2023, as Appl. No. 18/501,363.
Claims priority of application No. 202310150817.6 (CN), filed on Feb. 7, 2023.
Prior Publication US 2024/0267551 A1, Aug. 8, 2024
Int. Cl. H04N 19/50 (2014.01); H04N 19/132 (2014.01); H04N 19/136 (2014.01); H04N 19/172 (2014.01)
CPC H04N 19/50 (2014.11) [H04N 19/132 (2014.11); H04N 19/136 (2014.11); H04N 19/172 (2014.11)] 13 Claims
OG exemplary drawing
 
1. A weighted prediction image encoding method, comprising:
calculating a first feature value of a first frame, a second feature value of a second frame and a third feature value of a third frame;
calculating a first offset value according to the first feature value and the second feature value, and calculating a second offset value according to the second feature value and the third feature value; and
when both of the first offset value and the second offset value are greater than or less than a predetermined value, encoding the third frame by utilizing weighted prediction operation,
wherein the first frame, the second frame and the third frame are a plurality of frames in chronological order.