Title :
ρ-domain rate control for JPEG XR
Author :
Chan, Duncan ; Liang, Jie ; Tu, Chengjie
Author_Institution :
Sch. of Eng. Sci., Simon Fraser Univ., Burnaby, BC, Canada
Abstract :
A rate control algorithm is introduced to the JPEG XR still image compression algorithm, thereby allowing the user to compress an image to a target bit-rate. Using ρ-domain analysis, we showed a strong linearity relationship of the rate function R(ρ). This allows us to accurately estimate the rate-distortion function, and thus control bit-rate of the JPEG XR encoder.
Keywords :
data compression; image coding; ρ-domain rate control; JPEG XR; control bit rate; linearity relationship; rate control algorithm; rate function; still image compression algorithm; Bit rate; Estimation; Image coding; PSNR; Quantization; Transform coding; Transforms; JPEG XR; Rate Control;
Conference_Titel :
Signals, Systems and Computers (ASILOMAR), 2010 Conference Record of the Forty Fourth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-9722-5
DOI :
10.1109/ACSSC.2010.5757504
