发明授权
- 专利标题： Apparatus of layered picture coding, apparatus of picture decoding, methods of picture decoding, apparatus of recording for digital broadcasting signal, and apparatus of picture and audio decoding
- 专利标题（中）： 分层图像编码装置，图像解码装置，图像解码方法，数字广播信号记录装置，图像和音频解码装置
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申请号： US09919833申请日： 2001-08-02
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公开(公告)号： US06801574B2公开(公告)日： 2004-10-05
- 发明人: Seiichi Takeuchi , Masakazu Nishino , Yuji Fujiwara , Kazuhiro Wake
- 申请人： Seiichi Takeuchi , Masakazu Nishino , Yuji Fujiwara , Kazuhiro Wake
- 优先权： JP9-238008 19970903; JP9-259613 19970925; JP9-268468 19971001; JP9-294487 19971027
- 主分类号： H04B166
- IPC分类号： H04B166
摘要：
A video signal layering-encoding system has at least either a frequency distribution unit to judge a frequency distribution in an input video signal or a motion judgment unit to judge the motion of an input video signal. With this, encoding quantity control according to the characteristics of the input video signal can be performed between layers. Also, with selection of encode modes and sharing of a motion vector, the encoded data of a bidirectionally predicted frame can be reduced and the encoding efficiency of a high resolution signal can be increased.