发明申请
- 专利标题: VIDEO CODING BASED ON FIRST ORDER PREDICTION AND PRE-DEFINED SECOND ORDER PREDICTION MODE
- 专利标题(中): 基于一阶预测和预定义第二阶预测模式的视频编码
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申请号: US12495613申请日: 2009-06-30
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公开(公告)号: US20100329342A1公开(公告)日: 2010-12-30
- 发明人: Rajan L. Joshi , Peisong Chen , Marta Karczewicz
- 申请人: Rajan L. Joshi , Peisong Chen , Marta Karczewicz
- 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
- 主分类号: H04N7/32
- IPC分类号: H04N7/32 ; H04N7/26
摘要:
This disclosure describes video encoding and decoding techniques in which a first order prediction process and a second order prediction process are used in combination to generate predictive video blocks for video coding. First order prediction may be similar to conventional motion estimation and motion compensation that generates residual video blocks. The second order prediction may involve a process similar to conventional intra-prediction, but is performed on the residual video blocks. The techniques of this disclosure may pre-define the second order prediction to a specific mode, such as a mode similar to the intra-DC mode used in intra coding. In addition, the techniques of this disclosure may combine aspects of the first order and second order prediction into a single process so that the effects of second order prediction on the residuals are taken into account during the first order prediction process, which may improve compression.
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