Title :
Efficient Rate Control for Lossless Mode of JPEG2000
Author :
An, Jicheng ; Cai, Zixing
Author_Institution :
Coll. of Inf. Sci. & Eng., Central South Univ., Changsha
fDate :
6/30/1905 12:00:00 AM
Abstract :
This letter introduces a simple yet efficient rate control method, which is designed for lossless mode of JPEG2000. This method uses a fractional upward shift of bitplane to simulate more precise subband weighting. Compared to the previous integer upward shift of the bitplane, it achieves superior performance at most bit-rates without the cost of increased computational complexity.
Keywords :
image coding; rate distortion theory; JPEG2000 lossless mode; fractional upward shift; post compression rate distortion; rate control method; subband weighting; Bandwidth; Computational modeling; Design methodology; Distortion measurement; Encoding; Image coding; Performance loss; Rate-distortion; Transform coding; Video compression; Bit allocation; JPEG2000; post compression rate distortion (PCRD); rate control;
Journal_Title :
Signal Processing Letters, IEEE
DOI :
10.1109/LSP.2008.922293
