文献类型：会议论文

英文题名：An Intra String Copy Approach for SCC in AVS3

作者：Zhao, Liping[1,3];Zhou, Kailun[2];Zhou, Qingyang[2];Wang, Huihui[2];Lin, Tao[2]

机构：[1]Shaoxing Univ, Dept Comp Sci & Engn, Shaoxing, Peoples R China;[2]Tongji Univ, Coll Elect & Informat Engn, VLSI Lab, Shanghai, Peoples R China;[3]Peking Univ, Informat Technol R&D Innovat Ctr, Shaoxing, Peoples R China

会议论文集：IEEE International Conference on Visual Communications and Image Processing (VCIP) - Visual Communications in the Era of AI and Limited Resources

会议日期：DEC 05-08, 2021

会议地点：Munich, GERMANY

语种：英文

外文关键词：Video Coding; Audio-Video Coding Standard; Screen Content Coding; Intro String Copy

外文摘要：An efficient SCC tool named Intro String Copy (ISC) has been proposed and adopted in AVS3 recently. ISC has two CU-level sub-modes: FPSP (fully-matching-string and partially-matching-string based string prediction) sub-mode and EUSP (equal-value-string, unit-basis-vector-string and unmatched-pixel-string based string prediction) sub-mode. Compared with the latest AVS3 reference software HPM with SCC tools disabled, using AVS3 SCC Common Test Condition and YUV test sequences in text and graphics with motion (TGM) and mixed content (MC) categories, the proposed tool achieves an average Y BD-rate reduction of 57.7%139.5% and 77.2%157.9% for TGM and MC in All Intro (AD/Low Delay B(LDB) configurations, respectively, with low additional encoding complexity and almost the same decoding complexity.