- 专利标题: Content-adaptive background skipping for region-of-interest video coding
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申请号: US11200407申请日: 2005-08-09
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公开(公告)号: US09667980B2公开(公告)日: 2017-05-30
- 发明人: Haohong Wang , Khaled Helmi El-Maleh , Yi Liang
- 申请人: Haohong Wang , Khaled Helmi El-Maleh , Yi Liang
- 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 Campbell C. Chiang
- 主分类号: H04N7/18
- IPC分类号: H04N7/18 ; H04N19/196 ; H04N19/147 ; H04N19/172 ; H04N19/115 ; H04N19/126 ; H04N19/132 ; H04N19/14 ; H04N19/137 ; H04N19/154 ; H04N19/162 ; H04N19/177 ; H04N19/17 ; H04N19/587
摘要:
The disclosure is directed to techniques for content-adaptive background skipping for region-of-interest (ROI) video coding. The techniques may be useful in video telephony (VT) applications such as video streaming and videoconferencing, and especially useful in low bit-rate wireless communication applications, such as mobile VT. The disclosed techniques analyze content information of a video frame to dynamically determine whether to skip a non-ROI area within the frame. For example, the skipping determination may be based on content activity, such as ROI shape deformation, ROI motion, non-ROI motion, non-ROI texture complexity, and accumulated distortion due to non-ROI skipping. The skip determination may operate in conjunction with either frame-level or macroblock-level bit allocation.
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