4通过脸部定义参数FDP和脸部运动参数FAP来对人脸对象进行编码，从而获得码率极低的视频流。

MPEG-4defines a complete set of FDP and FAP in order to encode the facial object with a low bit-rate.

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4通过脸部定义参数FDP和脸部运动参数FAP来对人脸对象进行编码，从而获得码率极低的视频流。

MPEG-4defines a complete set of FDP and FAP in order to encode the facial object with a low bit-rate.

youdao