Encoding and decoding methods and apparatuses

专利名称：Encoding and decoding methods and

apparatuses

发明人：Changcai Lai申请号：US14142437申请日：20131227公开号：US09769474B2公开日：20170919

专利附图：

摘要：The present disclosure provides a method for encoding an intra-frameprediction mode, including: obtaining an intra-frame prediction mode of a current intra-frame encoding block from a preset prediction mode set; obtaining reference prediction

modes of the current intra-frame encoding block, where the reference prediction modesare intra-frame prediction modes of available adjacent blocks of the current intra-frameencoding block or prediction modes in a preset backup reference mode set; writing afirst flag bit into a code stream according to the reference prediction modes and theintra-frame prediction mode; and, when the intra-frame prediction mode of the encodingblock is different from all the reference prediction modes, obtaining a prediction modeencoding value according to a size relationship between the value of the intra-frameprediction mode and values of the reference prediction modes, and encoding theprediction mode encoding value.

申请人：Huawei Technologies Co., Ltd.

地址：Shenzhen, Guangdong CN

国籍：CN

代理机构：Leydig, Voit & Mayer, Ltd.

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