View source for 20240015278. METHOD AND APPARATUS FOR BI-PREDICTION WITH SAMPLE ADAPTIVE WEIGHTS simplified abstract (Tencent America LLC)

=METHOD AND APPARATUS FOR BI-PREDICTION WITH SAMPLE ADAPTIVE WEIGHTS=


==Organization Name==

[[:Category:Tencent America LLC|Tencent America LLC]]


[[Category:Tencent America LLC]]

==Inventor(s)==

[[:Category:Madhu Peringassery Krishnan of Mountain View CA (US)|Madhu Peringassery Krishnan of Mountain View CA (US)]][[Category:Madhu Peringassery Krishnan of Mountain View CA (US)]]

[[:Category:Xin Zhao of San Jose CA (US)|Xin Zhao of San Jose CA (US)]][[Category:Xin Zhao of San Jose CA (US)]]

[[:Category:Liang Zhao of Sunnyvale CA (US)|Liang Zhao of Sunnyvale CA (US)]][[Category:Liang Zhao of Sunnyvale CA (US)]]

[[:Category:Han Gao of San Diego CA (US)|Han Gao of San Diego CA (US)]][[Category:Han Gao of San Diego CA (US)]]

[[:Category:Xiaozhong Xu of State College PA (US)|Xiaozhong Xu of State College PA (US)]][[Category:Xiaozhong Xu of State College PA (US)]]

[[:Category:Shan Liu of San Jose CA (US)|Shan Liu of San Jose CA (US)]][[Category:Shan Liu of San Jose CA (US)]]

==METHOD AND APPARATUS FOR BI-PREDICTION WITH SAMPLE ADAPTIVE WEIGHTS - A simplified explanation of the abstract==


This abstract first appeared for US patent application 20240015278 titled 'METHOD AND APPARATUS FOR BI-PREDICTION WITH SAMPLE ADAPTIVE WEIGHTS

==Simplified Explanation==

The abstract of this patent application describes a method for applying weighted bi-prediction in video decoding. The method involves receiving a current picture, a first reference picture, and a second reference picture. It also includes obtaining predefined weighting patterns and selecting a weighting pattern based on a predetermined condition. The method further involves deriving weights for sub-blocks in the reference pictures based on the selected weighting pattern, and assigning these weights to the corresponding sub-blocks. Finally, the method decodes the current block using weighted bi-prediction based on the assigned weights.

* The method involves receiving a current picture, a first reference picture, and a second reference picture.
* Predefined weighting patterns are obtained and a weighting pattern is selected based on a predetermined condition.
* Weights are derived for sub-blocks in the reference pictures based on the selected weighting pattern.
* The derived weights are assigned to the corresponding sub-blocks.
* The current block is decoded using weighted bi-prediction based on the assigned weights.

Potential applications of this technology:
* Video compression and encoding systems
* Video streaming platforms
* Video playback devices

Problems solved by this technology:
* Improved video decoding accuracy and quality
* Efficient utilization of reference pictures in video compression

Benefits of this technology:
* Enhanced video compression efficiency
* Improved video decoding performance
* Higher video quality during playback


==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.



[[Category:H04N19/105]]
[[Category:H04N19/137]]
[[Category:H04N19/176]]
[[Category:H04N19/172]]
[[Category:H04N19/46]]