Title :
Rate Distortion Analysis of Motion Side Estimation in Wyner–Ziv Video Coding
Author :
Li, Zhen ; Liu, Limin ; Delp, Edward J.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN
Abstract :
Wyner-Ziv video coding (WZVC) has gained considerable interests in the research community. In this paper, we present a model to examine the WZVC performance and compare it with conventional motion-compensated prediction (MCP) based video coding. Theoretical results show that although WZVC can achieve as much as 6-dB gain over conventional video coding without motion search, it still falls 6 dB or more behind current best MCP-based INTER-frame video coding. We further study the use of subpixel and multireference motion search methods to improve WZVC efficiency. The analytical results are confirmed by simulations and experiments
Keywords :
image resolution; motion estimation; video coding; INTER-frame video coding; Wyner-Ziv video coding; motion side estimation; multireference motion search methods; rate distortion analysis; subpixel; Channel coding; Decoding; Image coding; Image processing; Laboratories; Motion analysis; Motion estimation; Rate-distortion; Video codecs; Video coding; Multireference side estimation; Wyner–Ziv video coding (WZVC); subpixel side estimation; Algorithms; Artifacts; Data Compression; Image Enhancement; Image Interpretation, Computer-Assisted; Motion; Video Recording;
Journal_Title :
Image Processing, IEEE Transactions on
DOI :
10.1109/TIP.2006.884934
