Optimal Bit Allocation for Wavelet-Based Distributed Video Coding

Author

Tonomura, Yoshihide ; Shirai, Daisuke ; Nakachi, Takayuki ; Fujii, Tetsuro

Author_Institution

Network Inovation Labs., Nippon Telephone & Telegraph Corp., Yokosuka

fYear

2006

fDate

Dec. 2006

Firstpage

442

Lastpage

448

Abstract

Distributed video coding (DVC), based on the theorems proposed by Slepian-Wolf and Wyner-Ziv, is attracting attention as a new paradigm for video compression. Some of the DVC systems use intra-frame compression based on DCT. Correspondingly, we proposed a wavelet-based DVC system that utilizes the current JPEG 2000 standard. The scheme has scalability with regard to resolution and quality. However, related works does not offer that optimal bit allocation method for each sub-band coefficients. In this report, we propose a bit allocation method for a wavelet-based DVC scheme. Tests confirm that the PSNR is increased about 1-2[dB] by propose method

Keywords

data compression; discrete cosine transforms; discrete wavelet transforms; video coding; DCT; JPEG 2000 standard; Slepian-Wolf theorem; Wyner-Ziv theorem; bit allocation method; discrete cosine transform; distributed video coding; scalability; video compression; wavelet-based DVC system; Bit rate; Cameras; Decoding; Image coding; Robustness; Scalability; Streaming media; Transform coding; Video coding; Video compression;

fLanguage

English

Publisher

ieee

Conference_Titel

Multimedia, 2006. ISM'06. Eighth IEEE International Symposium on

Conference_Location

San Diego, CA

Print_ISBN

0-7695-2746-9

Type

conf

DOI

10.1109/ISM.2006.120

Filename

4061200