Wavelet-Domain Distributed Video Coding with Motion-Compensated Refinement

Author

Anhong Wang ; Yao Zhao ; Lei Wei

Author_Institution

Inst. of Inf. Sci., Beijing Jiaotong Univ., China

fYear

2006

Firstpage

241

Lastpage

244

Abstract

In this paper, we propose a distributed video coding (DVC) paradigm based on lattice vector quantization in wavelet domain. In this framework, we use a fine and a coarse lattice vector quantizer to wavelet coefficients and the difference of two lattice quantizers is coded by turbo encoder. At decoder, side information is gradually updated by motion-compensated refinement. The refinement is built on partially decoded current frame and we give its matching strategy. Due to the refinement, burden of turbo encoding is cut down, bit rate is saved and the reconstruction is improved to some degree.

Keywords

decoding; image reconstruction; motion compensation; turbo codes; vector quantisation; video coding; wavelet transforms; decoder; lattice vector quantization; matching strategy; motion-compensated refinement; reconstruction process; turbo encoder; wavelet-domain distributed video coding; Decoding; Discrete cosine transforms; Discrete wavelet transforms; Encoding; Image reconstruction; Lattices; Vector quantization; Video coding; Wavelet coefficients; Wavelet domain; distributed source coding; distributed video coding; video coding processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2006 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1522-4880

Print_ISBN

1-4244-0480-0

Type

conf

DOI

10.1109/ICIP.2006.312470

Filename

4106511