DocumentCode :
698666
Title :
Distributed source coding of still images
Author :
Dikici, Cagatay ; Guermazi, Radhouane ; Idrissi, Khalid ; Baskurt, Atilla
Author_Institution :
Lab. d´Inf. en Images et Syst. d´Inf., Lyon, France
fYear :
2005
fDate :
4-8 Sept. 2005
Firstpage :
1
Lastpage :
5
Abstract :
We propose a compression scheme for still images, by exploiting the theory of Distributed Coding of correlated multi-sources. Two corrupted versions of an image are encoded separately but decoding jointly. Our approach results in twofold. use of decomposition of low-pass wavelet co-efficients for creating the Side Information, and variable-length coset creation by estimating the bit-rate of the cosets on the encoder using the joint distribution statistics of the original image and the side info. In the case of coding for mobile terminals, the proposed codec exploits the channel coding principles in order to have a simple encoder with a low transmission rate and high PSNR. Experimental results are given for lossy encoding case.
Keywords :
channel coding; data compression; decoding; decomposition; image coding; source coding; statistical distributions; wavelet transforms; PSNR; bit-rate estimation; channel coding principle; codec; compression scheme; correlated multisource; decoding; decomposition; distributed source coding; low-pass wavelet coefficient; mobile terminal; statistical distribution; still image coding; variablelength coset creation; Decoding; Image coding; Iterative decoding; PSNR; Silicon; Source coding;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing Conference, 2005 13th European
Conference_Location :
Antalya
Print_ISBN :
978-160-4238-21-1
Type :
conf
Filename :
7078258
Link To Document :
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