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    METHOD AND APPARATUS FOR DECODING A VIDEO SIGNAL
    58.
    发明申请
    METHOD AND APPARATUS FOR DECODING A VIDEO SIGNAL 有权

    公开(公告)号：US20170188050A1

    公开(公告)日：2017-06-29

    申请号：US15460013

    申请日：2017-03-15

    Applicant: LG Electronics Inc.

    Inventor： Jung Sun KIM ,  Seung Wook PARK ,  Young Hee CHOI ,  Jaewon SUNG ,  Byeong Moon JEON ,  Joon Young PARK

    IPC: H04N19/61 ,  H04N19/18 ,  H04N19/119 ,  H04N19/176 ,  H04N19/625 ,  H04N19/122

    CPC classification number: H04N19/61 ,  H04N19/119 ,  H04N19/122 ,  H04N19/129 ,  H04N19/149 ,  H04N19/176 ,  H04N19/18 ,  H04N19/625

    Abstract: The present invention relates to a method for decoding a video signal, comprising the steps of: acquiring a transform size flag of the current macroblock from a video signal; checking the number of non-zero transform coefficients at each pixel position in a first transform block which corresponds to the transform size flag; changing a scan order of the first transform block by prioritizing the position of the pixel having the greatest number of the non-zero transform coefficients in the first transform block; determining the number of the non-zero transform coefficients at each pixel position in a second transform block, and setting the changed scan order of the first transform block as an initialized scan order of the second transform block; adding the number of the non-zero transform coefficients at each pixel position in the first transform block and the number of the non-zero transform coefficients at each pixel position in the second transform block, and changing the scan order of the second transform block by prioritizing the position of the pixel having the greatest number of the non-zero transform coefficients; and decoding the transform coefficients arranged in the scan order changed in the previous step, wherein the first transform block and the second transform block have sizes corresponding to the transform size flag, and are contained in the current macroblock.

    INTRA PREDICTION IN IMAGE PROCESSING
    59.
    发明申请
    INTRA PREDICTION IN IMAGE PROCESSING 有权
    图像处理中的预测

    公开(公告)号：US20170078674A1

    公开(公告)日：2017-03-16

    申请号：US15344118

    申请日：2016-11-04

    Applicant: LG ELECTRONICS INC.

    Inventor： Yong Joon JEON ,  Seung Wook PARK ,  Jung Sun KIM ,  Joon Young PARK ,  Byeong Moon JEON ,  Jae Hyun LIM

    IPC: H04N19/159 ,  H04N19/86 ,  H04N19/593 ,  H04N19/117 ,  H04N19/176

    CPC classification number: H04N19/159 ,  H04N19/00 ,  H04N19/105 ,  H04N19/117 ,  H04N19/176 ,  H04N19/593 ,  H04N19/82 ,  H04N19/86

    Abstract: An intra prediction method and a device using the intra prediction method are provided. The intra prediction method includes the steps of: deriving a current prediction mode as a prediction mode of a current block; constructing neighboring samples of the current block with available reference samples; filtering the available reference samples; and generating predicted samples of the current block on the basis of the filtered available reference samples. The filtering step includes performing the filtering using the available reference sample located in the prediction direction of the current prediction mode and a predetermined number of available reference samples neighboring to the prediction direction of the current prediction mode.

    Abstract translation: 提供了一种帧内预测方法和使用帧内预测方法的装置。 帧内预测方法包括以下步骤：将当前预测模式导出为当前块的预测模式; 使用可用的参考样本构建当前块的相邻样本; 过滤可用的参考样本; 以及基于所过滤的可用参考样本生成当前块的预测样本。 滤波步骤包括使用位于当前预测模式的预测方向的可用参考样本和与当前预测模式的预测方向相邻的预定数量的可用参考样本来执行滤波。

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