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An improved algorithm for rate distortion optimization in JPEG2000 and its integrated circuit implementation

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4 Author(s)
Zhi Hua Wang ; Dept. of Electron. Eng., Tsinghua Univ., Beijing, China ; Xiang Xie ; Li Zhang ; Chun Zhang

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.

Published in:

Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on  (Volume:5 )

Date of Conference:

17-21 May 2004