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Video s3
    Details
    Author(s)
    Display Name
    Yang Wang
    Affiliation
    Affiliation
    Bytedance Inc.
    Display Name
    Kai Zhang
    Affiliation
    Affiliation
    Bytedance Inc.
    Display Name
    Li Zhang
    Affiliation
    Affiliation
    Bytedance
    Abstract

    However, the local information thoroughly investigated in intra prediction has not been explored in IBC. In this paper, local-aware intra block copy (LA-IBC) is proposed to further improve the coding performance of IBC. LA-IBC is composed of three methods. First, combined IBC and intra prediction (IBC-CIIP) is proposed to fuse the two prediction signals generated by IBC and intra prediction. Second, IBC with geometry partitioning (IBC-GPM) is proposed, in which a block is divided into two sub-partitions geometrically and IBC and intra prediction are used to obtain their prediction signals, individually. Third, IBC with local illumination compensation (IBC-LIC) is proposed to explore the illumination variation between the local and non-local templates within the picture. LA-IBC is integrated in the latest exploration software of video coding (ECM) published by JVET to evaluate its efficiency. The experimental results demonstrate that LA-IBC can achieve 1.7% and 0.88% BD-rate saving for screen content video compared to ECM-6.0 under all intra and random access configurations, respectively.