19016699. BI-PREDICTION WITH SAMPLE ADAPTIVE WEIGHTS (TENCENT AMERICA LLC)
BI-PREDICTION WITH SAMPLE ADAPTIVE WEIGHTS
Organization Name
Inventor(s)
Madhu Peringassery Krishnan of Mountain View CA US
Xiaozhong Xu of State College PA US
BI-PREDICTION WITH SAMPLE ADAPTIVE WEIGHTS
This abstract first appeared for US patent application 19016699 titled 'BI-PREDICTION WITH SAMPLE ADAPTIVE WEIGHTS
Original Abstract Submitted
A method includes receiving a current picture, a first reference picture, and a second reference picture. The method includes obtaining a plurality of predefined weighting patterns, each weighting pattern being signaled as an index value and selecting a weighting pattern based on a predetermined condition. The method includes deriving a first weight to be applied to a first sub-block in the first reference picture and a second weight to be applied to a second sub-block in the second reference picture based on the index value corresponding to the selected weighting pattern. The method includes assigning the first weight to the first sub-block and the second weight to the second sub-block based on the selected weighting pattern. The method includes decoding the current block by a weighted bi-prediction based at least on the first sub-block weighted by the first weight and the second sub-block weighted by the second weight.