A fast TU mode decision algorithm based on residual difference for HEVC

N. R. Li, K. W. Liang, Z. Y. Chen, H. Y. Jiang, J. T. Fang, P. C. Chang

研究成果: 雜誌貢獻會議論文同行評審


High Efficiency Video Coding (HEVC) is the latest video coding standard. The residual quadtree (RQT) coding structure which provides variable block size for transform coding, is adopted in HEVC to achieve high coding efficiency. However, compared with previous standards, encoding complexity is increased significantly in HEVC due to the advanced encoding structure. A fast transform unit (TU) mode decision algorithm using residual difference is proposed in this paper to reduce the computational complexity. The proposed algorithm utilized the residual difference to determine the criterion of early TU termination and early TU skip. The threshold was trained from the beginning samples of each sequence. Experimental results showed that the proposed algorithm saves up to 75.64% and on average 64% TU encoding time compared with HM 15.0 in low delay P configuration and the loss of average BD-BR is less than 0.5%.

頁(從 - 到)5-9
期刊IS and T International Symposium on Electronic Imaging Science and Technology
出版狀態已出版 - 2017
事件8th Visual Information Processing and Communication, VIPC 2017 - Burlingame, United States
持續時間: 29 1月 20172 2月 2017


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