상세정보
학술지
Novel Inter-Mode Decision Algorithm Based on Macroblock (MB) Tracking for the P-Slice in H.264/AVC Video Coding
- 저자
- 김병규
- 발행일
- 200802
- 출처
- IEEE Transactions on Circuits and Systems for Video Technology, v.18 no.2, pp.273-279
- ISSN
- 1051-8215
- 출판사
- IEEE
- 협약과제
- 06MW1100, 임베디드 SW 기반 Smar Town 솔루션 기술 개발, 마평수
- 초록
- We propose a fast macroblock (MB) mode prediction and decision algorithm based on temporal correlation for P-slices in the H.264/AVC video standard. There are nine 4 × 4 and 8 × 8 modes, and four 16 × 16 modes in the intra-mode prediction and 8 block types including SKIP mode exist for the best coding gain based on rate-distortion (R-D) optimization. This scheme gives rise to exhaustive computations (search) in the coding procedure. To overcome this problem, a thresholding method for fast inter-mode decision using an MB tracking scheme to find the most correlated block and the R-D cost of that block, are suggested for early intermode determination. An inter-mode candidate selection method is first suggested through the statistical analysis. Then, an adaptive inter-mode search algorithm is applied by using the R-D cost of the most correlated MB. Through comparative analysis, a speed-up factor of up to 70.83% was verified with a negligible bit increment and a minimal loss of image quality. © 2008 IEEE.
- KSP 제안 키워드
- Candidate selection, Coding Gain, Comparative analysis, Decision algorithm, H.264/AVC video, Image quality, Mode decision, Search Algorithm(GSA), Selection method, Skip mode, Speed-up factor