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Fast Rate Distortion Optimization Algorithm for Inter Predictive Coding of H.264/AVC  

Sin, Se-Ill (아이콘(주))
Oh, Jeong-Su (부경대학교 화상정보공학부 이미지시스템공학과 디지털영상처리연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.1C, 2009 , pp. 56-62 More about this Journal
Abstract
In H.264/AVC, rate distortion optimization algorithm is used to decide the best block mode from various block modes. It improves a bit rate but greatly increases an amount of computation. This paper proposes a fast rate distortion optimization algorithm that omits a rate distortion optimization adaptively by predicting its cost from the cost calculated for motion estimation. The simulation results show that the proposed algorithm, on average, keeps nearly the image quality and the bit rate made by the rate distortion optimization while reduces 69.86% and 69.63% of computation added by it in CIF and QCIF respectively.
Keywords
various block mode; rate distortion optimization; motion estimation; H.264/AVC;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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