상세정보
학술지
Enhanced Inter Mode Decision Based on Contextual Prediction for P-Slices in H.264/AVC Video Coding
- 발행일
- 200608
- 출처
- ETRI Journal, v.28 no.4, pp.425-434
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 05MW1200, 임베디드 S/W 기반 SmarTown 솔루션 기술, 마평수
- 초록
- We propose a fast macroblock mode prediction and decision algorithm based on contextual information for Pslices in the H.264/AVC video standard, in which the mode prediction part is composed of intra and inter modes. There are nine 4×4 and four 16×16 modes in the intra mode prediction, and seven block types exist for the best coding gain based on rate-distortion optimization. This scheme gives rise to exhaustive computations (search) in the coding procedure. To overcome this problem, a fast inter mode prediction scheme is applied that uses contextual mode information for P-slices. We verify the performance of the proposed scheme through a comparative analysis of experimental results. The suggested mode search procedure increased more than 57% in speed compared to a full mode search and more than 20% compared to the other methods.
- KSP 제안 키워드
- Coding Gain, Comparative analysis, Contextual information, Contextual prediction, Decision algorithm, H.264/AVC video, Inter Mode Decision, Prediction scheme, Rate-Distortion Optimization(RDO), Video coding, intra mode