发明授权
- 专利标题: Method and apparatus for weighted prediction in predictive frames
- 专利标题(中): 预测帧加权预测的方法和装置
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申请号: US11120513申请日: 2005-05-02
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公开(公告)号: US08731054B2公开(公告)日: 2014-05-20
- 发明人: Gordon Kent Walker , Vijayalakshmi R. Raveendran
- 申请人: Gordon Kent Walker , Vijayalakshmi R. Raveendran
- 申请人地址: US CA San Diego
- 专利权人: QUALCOMM Incorporated
- 当前专利权人: QUALCOMM Incorporated
- 当前专利权人地址: US CA San Diego
- 代理商 Brent A. Boyd
- 主分类号: H04B1/66
- IPC分类号: H04B1/66 ; H04N7/12 ; H04N11/02 ; H04N11/04
摘要:
A method and apparatus for constructing weighted bi-directional predicted video pictures including locating first and second prediction regions in first and second reference frames, receiving first and second weight parameters related to the first and second prediction regions, where the weight parameters and weighting methodology used to encode the weight parameters can be from several different codec designs for weighted bi-directional prediction. Further including, modifying the weight parameters to conform to a bit configuration and weighting methodology, applying the weight parameters to the first and second prediction regions and combining them to form a weighted bi-directional predicted picture. The bit configuration being chosen to accommodate multiple encoded bit configurations and methodologies, where the encoded bit configurations and methodologies can differ in characteristics such as, for example, bit size, being signed or unsigned, and supporting offsets.