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专利名称Patent Title
一种非对称立体视频编码方法
Coding method of asymmetric stereoscopic video
点评:一种非对称立体视频编码方法,该编码方法在对右视点视频的各个1/2分辨率下采样图像采用具有时域预测和视点间预测的视频编码方法进行编码的过程中,通过将右视点视频中已完成编码的1/2分辨率下采样图像的解码重建帧作为时域预测参考帧,将左视点视频中同一时刻的解码重建帧的1/2分辨率下采样图像作为视点间预测参考帧,且在进行1/2分辨率下采样过程中,采样方向是根据左视点视频中I帧图像中的各个既能进行水平预测也能进行垂直预测的宏块采用水平预测模式预测的残差与采用垂直预测模式预测的残差的大小选择的,这样能够获得较好的率失真性能,此外由于残差信息在编码时可方便地获得,无需额外计算,不会导致编码复杂度的增加。

Comment: The invention discloses a coding method of asymmetric stereoscopic videos, comprising the following steps of: in the coding process of each half resolution ratio down-sampling image of a right view point video by a video coding method with time domain prediction and view point space prediction, using a decoding reconstructed frame of the coded half resolution ratio down-sampling image of the right view point video as a time domain prediction reference frame, and using a half resolution ratio down-sampling image of a synchronous decoding reconstructed frame of a left view point video as a viewpoint space prediction reference frame; and selecting a sampling direction according to the sizes of residual errors of macro blocks which can not only be horizontally predicted, but also be vertically predicted in an I frame image of the left view point video in the half resolution ratio down-sampling process, wherein the residual errors of the macro blocks are predicted by adopting a horizontalprediction mode and a vertical prediction mode, thus better rate-distortion performance can be obtained. Besides, because residual error information can be conveniently obtained during coding withoutadditional calculation, the complexity of the coding can not be enhanced.
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