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Implementation of an Efficient Rate-Distortion Optimization Algorithm for JPEG2000  

Moon Hyoung-Jin (Department of Computer Engineering, Chonnam National University)
Jung Gab-Cheon (Department of Electronics Engineering, Chonnam National University)
Park Seong-Mo (Department of Computer Engineering, Chonnam National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea CI / v.43, no.3, 2006 , pp. 50-58 More about this Journal
Abstract
This paper describes the implementation of an efficient Rate-Distortion Optimization algerian to speed up rate control in JPEG2000. While the conventional algorithm determines the rate constant by averaging maximum R-D slope and minimum R-D slope for entire image, the proposed algorithm determines it by using R-D slopes of coding passes located near truncation point. Moreover, the rate allocation in proposed algorithm is conducted about only coding passes excluded from the previous rate allocation. As a result, it can reduce the number of operations required for rate-distortion optimization. The proposed algorithm was implemented in C programing language and was executed on the Altera Excalibur(EPXA4) development board.
Keywords
JPEG2000; Rate Control; Rate Allocation;
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