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
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