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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전자공학회 IEIE Transactions on Smart Processing & Computing IEIE Transactions on Smart Processing & Computing Vol.7 No.3
- 발행연도
- 2018.6
- 수록면
- 210 - 220 (11page)
- DOI
- 10.5573/IEIESPC.2018.7.3.210
이용수
초록· 키워드
오류제보하기
High Efficiency Video Coding (HEVC) intra coding achieves significant improvements in coding efficiency compared with H.264/AVC intra coding by adopting 35 spatial intra prediction modes and a quadtree-based block partitioning structure. However, the encoding complexity is extremely high from performing rate-distortion optimization (RDO) on each mode and depth level. This paper proposes fast intra mode decision algorithms for real-time HEVC encoding. For a fast intra prediction mode decision, we estimate the lower bound on the rate-distortion (RD) cost of a prediction unit with non–most-probable modes (non-MPMs). If the RD cost of the MPM is lower than the lower bound, the MPM is selected as the best mode. For a fast intra coding unit (CU) size decision, we predict the RD cost of four split sub-CUs from the RD of the current CU using the relationship between the RDs of the current CU and its split sub-CUs. In the HEVC Test Model software, the proposed algorithm saves 48.56% of the encoding time, on average, while the RD loss is only 0.59%. In x265, the proposed algorithm improves the encoding speed to 71.95 fps, on average, from 49.46 fps. It achieves 1.8 times faster speed with a bit increase of only 0.44%, compared to x265.
목차
Abstract
1. Introduction
2. The Proposed Fast Intra Prediction Mode Decision
3. The Proposed Fast Intra CU Size Decision
4. Experimental Results
5. Conclusion
References
참고문헌 (20)
참고문헌 신청
[기타자료] - / 2013 / ITU-T Rec. H.265, High Efficiency Video Coding / ITU-T
[학술지(정기간행물)] - G. J. Sullivan / 2012 / Overview of the High Efficiency Video Coding (HEVC) Standard / IEEE Trans. Circuit System for Video Technology 22 (12) : 1649 ~ 1668
[학술지(정기간행물)] - J. Lainema / 2012 / Intra Coding of the HEVC Standard / IEEE Trans. Circuit System for Video Technology 22 (12) : 1792 ~ 1801
[기타자료] - Y. Piao / 2010 / Encoder improvement of unified intra prediction, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11, Document: JCTVC-C207
[학술대회논문] - L. Zhao / 2011 / Fast mode decision algorithm for intra prediction in HEVC / Visual Communications and Image Processing (VCIP), 2011 IEEE : 1 ~ 4
[학술지(정기간행물)] - G. J. Sullivan / 2012 / Overview of the High Efficiency Video Coding (HEVC) Standard / IEEE Trans. Circuit System for Video Technology 22 (12) : 1649 ~ 1668
[학술지(정기간행물)] - J. Lainema / 2012 / Intra Coding of the HEVC Standard / IEEE Trans. Circuit System for Video Technology 22 (12) : 1792 ~ 1801
[기타자료] - Y. Piao / 2010 / Encoder improvement of unified intra prediction, Joint Collaborative Team on Video Coding (JCT-VC) of ITU-T SG16 WP3 and ISO/IEC JTC1/SC29/WG11, Document: JCTVC-C207
[학술대회논문] - L. Zhao / 2011 / Fast mode decision algorithm for intra prediction in HEVC / Visual Communications and Image Processing (VCIP), 2011 IEEE : 1 ~ 4
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UCI(KEPA) : I410-ECN-0101-2018-569-003112395