22 September 2015 Coding efficiency improvements beyond HEVC with known tools
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Abstract
In this paper, several coding tools are evaluated on top of the HEVC version 1. Among them there are straightforward extension of HEVC coding tools (such as Coding Unit size enlarging, fine granularity of Intra prediction angles) and algorithms that have been studied during HEVC development (such as secondary transform, multi-hypothesis CABAC, multi-parameter Intra prediction, bidirectional optical flow). Most of them improve performance of Intra coding. Minor adjustment to the final version of HEVC standard was done for efficient harmonization of the proposed coding tools with HEVC. Performance improvement observed from investigated tools is up to 7,1%, 9,9%, 4,5% and 5,7% in all-intra, random access, low-delay B and low-delay P test scenario (using HEVC common test conditions).
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Alexander Alshin, Alexander Alshin, Elena Alshina, Elena Alshina, Madhukar Budagavi, Madhukar Budagavi, Kiho Choi, Kiho Choi, Junghye Min, Junghye Min, Michael Mishourovsky, Michael Mishourovsky, Yinji Piao, Yinji Piao, Ankur Saxena, Ankur Saxena, } "Coding efficiency improvements beyond HEVC with known tools", Proc. SPIE 9599, Applications of Digital Image Processing XXXVIII, 95991C (22 September 2015); doi: 10.1117/12.2193683; https://doi.org/10.1117/12.2193683
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