20240015278. METHOD AND APPARATUS FOR BI-PREDICTION WITH SAMPLE ADAPTIVE WEIGHTS simplified abstract (Tencent America LLC)
Contents
METHOD AND APPARATUS FOR BI-PREDICTION WITH SAMPLE ADAPTIVE WEIGHTS
Organization Name
Inventor(s)
Madhu Peringassery Krishnan of Mountain View CA (US)
Liang Zhao of Sunnyvale CA (US)
Xiaozhong Xu of State College PA (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.
