Apparatus and the method for performance improvement of Pixel Domain Wyner Ziv encoder and decoder

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a codec device for pixel-based distributed video, wherein a statistical redundancy and correlation regarding a difference value between a WZ (Wyner-Ziv) frame and side information (SI) is centered around zero By using the relationship, it comprises a gray encoder for assigning the analysis code. ; The pixel-domain distributed video encoding and decoding apparatus according to the present invention may further include a bit interleaver connected to a gray encoder and reducing virtual channel noise through channel decoding for distributing virtual channel noise. ; In the pixel-domain distributed video encoding and decoding method according to the present invention, the WZ frame encoding step using the analysis code on the encoder side, the auxiliary information encoding step using the analysis code on the decoder side, the residual signal detection step on the decoder side, and the residual signal and the reference And generating a WZ reconstruction frame by using a keyframe which is an image. ; Pixel, region, variance, video, codec, encoding, decoding