发明名称 |
Face Detection System for Video Encoders |
摘要 |
Embodiments include a codec for use in a videoconferencing or similar system includes a video encoder pipeline that has a pre-processor component that is optimized to detect faces and compress the facial video data in an optimum manner. The codec has a pre-processing step that analyzes each frame on a per macroblock basis to determine the mathematical activity level per block. The activity level calculation is used as a parameter to the bitrate control module of the encoder to control the quantization, and thus the fine grained quality of the output data. An object detection module (e.g., a face detector) is placed in the pre-processing step. The object detection data is then combined with the activity level and object detection certainty value through a combinatorial algorithm comprising a weighted average or normalized multiplication process.
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申请公布号 |
US2010166055(A1) |
申请公布日期 |
2010.07.01 |
申请号 |
US20080347927 |
申请日期 |
2008.12.31 |
申请人 |
ADVANCED MICRO DEVICES, INC. |
发明人 |
SCHMIT MICHAEL L.;KODURI RAJA;KILLEBREW CARRELL RAY |
分类号 |
H04N7/12;G06K9/00 |
主分类号 |
H04N7/12 |
代理机构 |
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地址 |
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