A multi-channel channel-optimized scheme for EZW using rate-distortion functions

Author

Liu, Jen-Chang ; Hwang, Wen-Liang ; Hwang, Wen-Jyi ; Chen, Ming-Syan

Author_Institution

Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan

Volume

1

fYear

2000

fDate

2000

Firstpage

395

Abstract

We develop a multi-channel channel-optimized scheme for embedded zerotree wavelet (EZW) image compression in a noisy transmission environment. A block-based modification for EZW is applied to improve the robustness of EZW, and to produce several coded bitstreams for transmission over multiple channels with different noise conditions. Then the respective channel noise is considered in the rate-distortion analysis, and the resultant rate-distortion functions are used for optimal bit allocation among the coded bitstreams. The case of burst noise is analyzed as an example

Keywords

burst noise; combined source-channel coding; data compression; image coding; rate distortion theory; wavelet transforms; EZW image compression; block-based modification; burst noise; channel coding; channel noise; coded bitstreams; embedded zerotree wavelet; multi-channel channel-optimized scheme; noisy transmission environment; optimal bit allocation; rate-distortion functions; source coding; Bit rate; Channel coding; Cost function; Decoding; Image coding; Information science; Noise robustness; Rate-distortion; Source coding; Working environment noise;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2000. Proceedings. 2000 International Conference on

Conference_Location

Vancouver, BC

ISSN

1522-4880

Print_ISBN

0-7803-6297-7

Type

conf

DOI

10.1109/ICIP.2000.900978

Filename

900978