DocumentCode
3346079
Title
An improved algorithm for rate distortion optimization in JPEG2000 and its integrated circuit implementation
Author
Wang, ZhiHua ; Xie, Xiang ; Zhang, Li ; Zhang, Chun
Author_Institution
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Volume
5
fYear
2004
fDate
17-21 May 2004
Abstract
Rate distortion optimization (RDO) plays an important role in a JPEG2000 encoder. An improved RDO algorithm is presented in this paper. The proposed algorithm is suitable for integrated circuit implementation and can reduce the computational cost. A hardware architecture which includes control unit, memory, divider, and data converter is also given to implement the algorithm. The circuit, based on the improved algorithm, has been integrated in a JPG2000 chip codec core.
Keywords
codecs; image coding; optimisation; rate distortion theory; JPG2000 chip codec core; RDO IC implementation; computational cost reduction; control unit; data converter; divider; memory; rate distortion optimization; Clocks; Computational efficiency; Costs; Equations; Information theory; Rate-distortion;
fLanguage
English
Publisher
ieee
Conference_Titel
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
ISSN
1520-6149
Print_ISBN
0-7803-8484-9
Type
conf
DOI
10.1109/ICASSP.2004.1327047
Filename
1327047
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