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CN101322404A 视频信号的编码和解码 无效 - 撤回

视频信号的编码和解码
摘要：
编码器(100)包括运动估计处理器(103)，其产生视频信号的经过运动补偿的视频帧。该经过运动补偿的视频帧被馈送给子波处理器(105)，其对该帧应用自适应空间子波变换来产生空间变换帧。编码处理器(107)响应于所述空间变换帧产生所述视频信号的编码视频数据。编码器(100)进一步包括自适应处理器(111)，其响应于所述经过运动补偿的视频帧的运动数据，确定所述自适应空间子波变换的自适应参数。该自适应参数可以是所述自适应空间子波变换的子波系数。解码器(300)执行相反的操作，并基于接收到的运动数据确定用于反自适应空间子波变换的自适应参数。使用自适应空间子波变换的自适应的运动信息，实现了改进的视频质量与数据速率比，而不必需要额外的附带数据。
摘要（英）：

An encoder (100) comprises a motion estimation processor (103) which generates motion compensated video frames for a video signal. The motion compensated video frames are fed to a wavelet processor (105) which applies an adaptive spatial wavelet transform to the frames to generate spatially transformed frames. An encoding processor (107) generates encoded video data for the video signal in response to the spatially transformed frames. The encoder (100) further comprises an adaptation processor (111) which determines adaptive parameters for the adaptive spatial wavelet transform in response to motion data for the motion compensated video frames. The adaptive parameters may be wavelet coefficients for the adaptive spatial wavelet transform. The decoder (300) performs the inverse operation and determines adaptive parameters for an inverse adaptive spatial wavelet transform based on received motion data. The use of motion information for adaptation of the adaptive spatial wavelet transforms allows improved video quality to data rate ratio without necessitating additional side data.

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