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학술지 A Statistical Approach for Fast Mode Decision in Scalable Video Coding
Cited 30 time in scopus Download 0 time Share share facebook twitter linkedin kakaostory
저자
박천수, 단병규, 최해철, 고성제
발행일
200912
출처
IEEE Transactions on Circuits and Systems for Video Technology, v.19 no.12, pp.1915-1920
ISSN
1051-8215
출판사
IEEE
DOI
https://dx.doi.org/10.1109/TCSVT.2009.2031520
협약과제
09MR4100, 차세대DTV핵심기술개발(표준화연계)-무안경개인형3D방송기술개발(계속), 김진웅
초록
In scalable video coding (SVC), an exhaustive mode decision is performed to search for the best mode at each macroblock. Although this method achieves an optimal trade-off between rate and distortion, it introduces an extreme computational burden on the encoder. In this letter, we propose a fast mode decision algorithm that can reduce the computational load of the mode decision for SVC. We statistically derive the expectation of the rate-distortion cost (RDcost) increase caused by skipping each mode in the mode decision. In the proposed algorithm, the encoder performs the mode decision using a small number of modes that are determined based on the expected increase of the RDcost. Experimental results show that the proposed algorithm can reduce the computational complexity significantly with negligible video quality degradation and bitrate increment. © 2009 IEEE.
KSP 제안 키워드
Computational complexity, Decision algorithm, Fast Mode Decision, Quality degradation, Rate-distortion cost, Scalable Video Coding, Trade-off, Video quality, best mode, computational burden, computational load