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专利名称Patent Title
一种Wyner-ziv视频编解码方法
Wyner-ziv video encoding and decoding method
点评:一种Wyner-ziv视频编码方法,利用时间轴上的图像重组方法对时域上相邻的前后两帧图像进行重组,使得重组后的关键帧图像和Wyner-ziv帧图像各自包含原输入视频信号时域上相邻的前后两帧图像的部分信息,提高了重组后的关键帧图像与Wyner-ziv帧图像之间的相关性,使得解码端能利用已有的关键帧图像的数据插值得到质量较高的Wyner-ziv帧图像的边信息,提高Wyner-ziv帧图像编码压缩性能,从而达到提高Wyner-ziv视频编解码的率失真性能的目的;此外,本发明方法虽然在解码端增加了图像重组、反重组和图像插值等处理,但免去了计算量极大的运动估计插值,因此相对于原有的Wyner-ziv编解码器其编解码复杂度增加极为有限。

Comment: The invention discloses a Wyner-Ziv video coding method. Reorganization is carried out on two adjacent front and back frame images on a time domain by utilizing an image reorganization method on a time axis to cause a key frame image and a Wyner-Ziv frame image after reorganized to respectively comprise partial information of the adjacent front and back frame images on the original input video signal time domain, enhance the correlation between the key frame image and a Wyner-Ziv frame image which are reorganized, cause a decoding end to get side information of the Wyner-Ziv frame image with higher quality by utilizing data interpolation of the prior key frame image, and enhance the coding compression performance of the Wyner-Ziv frame image, thereby reaching the purpose of enhancing the rate-distortion performance of coding and decoding of a Wyner-Ziv video; in addition, although the method increases processing such as image reorganization, inverse reorganization and image interpolation, motion estimation interpolation with big calculation amount is removed, therefore, corresponding to the prior Wyner-Ziv Codec, the increase of the coding and decoding complexity is limited.
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