Image decoding method and apparatus using same

    公开(公告)号:US10863187B2

    公开(公告)日:2020-12-08

    申请号:US16597153

    申请日:2019-10-09

    Abstract: The present invention includes an image information decoding method which comprises: a step of receiving a bitstream that includes a network abstraction layer (NAL) unit including information related to an encoded image; and a step of parsing an NAL unit header of the NAL unit. The NAL unit header includes layer information including reserved_one_5bits for identifying an extended layer in an extended bitstream and temporal_id for identifying a temporal layer of a bitstream. The reserved_one_5bits of the layer information is received prior to the temporal_id of the layer information. Thus, a method for describing scalability information in a hierarchical bitstream is provided.

    Image decoding method and apparatus using same

    公开(公告)号:US10448039B2

    公开(公告)日:2019-10-15

    申请号:US15723304

    申请日:2017-10-03

    Abstract: The present invention includes an image information decoding method which comprises: a step of receiving a bitstream that includes a network abstraction layer (NAL) unit including information related to an encoded image; and a step of parsing an NAL unit header of the NAL unit. The NAL unit header includes layer information including reserved_one_5bits for identifying an extended layer in an extended bitstream and temporal_id for identifying a temporal layer of a bitstream. The reserved_one_5bits of the layer information is received prior to the temporal_id of the layer information. Thus, a method for describing scalability information in a hierarchical bitstream is provided.

    VIDEO-ENCODING METHOD, VIDEO-DECODING METHOD, AND APPARATUS IMPLEMENTING SAME
    16.
    发明申请
    VIDEO-ENCODING METHOD, VIDEO-DECODING METHOD, AND APPARATUS IMPLEMENTING SAME 有权
    视频编码方法,视频解码方法及其实现方法

    公开(公告)号:US20150036754A1

    公开(公告)日:2015-02-05

    申请号:US14354937

    申请日:2013-04-23

    Abstract: The present invention relates to an inter-layer prediction method and to an apparatus implementing the method. The method may comprise the steps of generating a first block constituted by the value obtained by up-sampling the reconstruction value of a reference block of a reference layer corresponding to the current block; generating a second block constituted by a prediction value derived from intra-prediction mode of the current block; and generating a prediction block of the current block by combining sample values of the first block and the second block. Thus, intra-prediction on the current layer can be performed using the intra-prediction mode information of another layer.

    Abstract translation: 本发明涉及层间预测方法以及实现该方法的装置。 该方法可以包括以下步骤:产生由通过对对应于当前块的参考层的参考块的重建值进行上采样获得的值构成的第一块; 生成由从当前块的帧内预测模式导出的预测值构成的第二块; 以及通过组合第一块和第二块的采样值来生成当前块的预测块。 因此,可以使用另一层的帧内预测模式信息来执行当前层上的帧内预测。

    Image decoding method and apparatus using same

    公开(公告)号:US11546622B2

    公开(公告)日:2023-01-03

    申请号:US17091528

    申请日:2020-11-06

    Abstract: The present invention includes an image information decoding method which comprises: a step of receiving a bitstream that includes a network abstraction layer (NAL) unit including information related to an encoded image; and a step of parsing an NAL unit header of the NAL unit. The NAL unit header includes layer information including reserved_one_5bits for identifying an extended layer in an extended bitstream and temporal_id for identifying a temporal layer of a bitstream. The reserved_one_5bits of the layer information is received prior to the temporal_id of the layer information. Thus, a method for describing scalability information in a hierarchical bitstream is provided.

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