INTER PREDICTION MODE-BASED IMAGE PROCESSING METHOD AND DEVICE THEREFOR

    公开(公告)号:US20190098299A1

    公开(公告)日:2019-03-28

    申请号:US16095590

    申请日:2016-04-22

    Abstract: The present invention discloses an inter prediction mode-based image processing method and an apparatus therefore. Specifically, a method for processing an image based on an inter prediction may include: deriving motion information of a first prediction unit determined by a first partitioning mode of a current block and motion information of a second prediction unit determined by a second partitioning mode of the current block; generating a prediction block of the first prediction unit by using the motion information of the first prediction unit and generating a prediction block of the second prediction unit by using the motion information of the second prediction unit; and generating a prediction block of the current block in units of sub-prediction unit determined by combining the first prediction unit and the second prediction unit by using the first prediction block and the second prediction block.

    Method And Apparatus For Processing A Video Signal
    97.
    发明申请
    Method And Apparatus For Processing A Video Signal 有权
    用于处理视频信号的方法和装置

    公开(公告)号:US20150163494A1

    公开(公告)日:2015-06-11

    申请号:US14624739

    申请日:2015-02-18

    Abstract: The present invention discloses a method and apparatus for encoding or decoding a video signal. The method for processing a video signal according to the present invention uses a merging mode in which prediction information on a neighbor unit is used instead of transmitting prediction information on the present unit, so as to improve coding efficiency. In this case, the number of available candidate units for merging among the units in a predetermined position is determined, and information for the merging mode is acquired on the basis of the number of the available candidate units for merging. The unit to be merged is determined using the information for the merging mode, and prediction information on the unit to be merged is acquired. The prediction value for the present unit is acquired using the prediction information on the unit to be merged, and the present unit is restored using the acquired prediction value.

    Abstract translation: 本发明公开了一种用于对视频信号进行编码或解码的方法和装置。 根据本发明的用于处理视频信号的方法使用其中使用相邻单元的预测信息而不是在本单元上发送预测信息的合并模式,以便提高编码效率。 在这种情况下,确定用于在预定位置的单元之间合并的可用候选单元的数量,并且基于用于合并的可用候选单元的数量来获取用于合并模式的信息。 使用合并模式的信息确定要合并的单位,并且获取关于要合并的单元的预测信息。 使用关于要合并的单位的预测信息来获取本单元的预测值,并且使用所获取的预测值来恢复本单元。

    IMAGE CODING METHOD AND APPARATUS BASED ON INTRA PREDICTION USING MPM LIST

    公开(公告)号:US20250113021A1

    公开(公告)日:2025-04-03

    申请号:US18940151

    申请日:2024-11-07

    Abstract: A method for decoding an image performed by a decoding apparatus according to the present disclosure comprises the steps of: receiving intra prediction information including at least one of MPM flag information indicating whether to derive an intra prediction mode for a current block on the basis of MPM candidates for the current block, or PLANAR flag information indicating whether to determine the intra prediction mode for the current block as a PLANAR mode; deriving the intra prediction mode for the current block on the basis of the MPM flag information and the PLANAR flag information; deriving a predicted block for the current block on the basis of the intra prediction mode for the current block; and generating a reconstructed picture on the basis of the predicted block.

    IMAGE CODING METHOD BASED ON TRANSFORM, AND DEVICE THEREFOR

    公开(公告)号:US20250071286A1

    公开(公告)日:2025-02-27

    申请号:US18945021

    申请日:2024-11-12

    Abstract: An image decoding method according to the present document comprises the steps of: applying LFNST to transform coefficients to derive modified transform coefficients; deriving residual samples for a target block on the basis of an inverse primary transform for the modified transform coefficients; and generating a reconstructed picture on the basis of the residual samples, wherein the step of deriving the modified transform coefficients can comprise the steps of parsing an LFNST index on the basis of the current block tree type being a dual tree chroma, and deriving the modified transform coefficients on the basis of the LFNST index and an LFNST matrix.

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