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    Image encoding method and image decoding method
    84.
    发明授权
    Image encoding method and image decoding method 有权

    公开(公告)号：US10659758B2

    公开(公告)日：2020-05-19

    申请号：US15652078

    申请日：2017-07-17

    Applicant: LG ELECTRONICS INC.

    Inventor： Jaewon Sung ,  Sehoon Yea ,  Eunyong Son ,  Jiwook Jung

    IPC: H04N13/161 ,  H04N19/52 ,  H04N19/96 ,  H04N19/527 ,  H04N19/597 ,  H04N13/00

    Abstract: A video decoding method that includes: receiving information for deriving motion information of a current block; deriving the motion information of the current block based on the received information for deriving the motion information; and performing prediction to generate predicted pixels of the current block based on the motion information of the current block, wherein the motion information of the current block is determined by using motion information of a reference block, wherein the reference block is determined based on a specific disparity vector, wherein the specific disparity vector is determined for an area in a picture to which the current block belongs, wherein the area which the specific disparity vector is determined is split based on a quad tree structure, and wherein the current block is a block of a texture picture and the reference block is a block in a reference view is disclosed.

    Method and apparatus for decoding a video signal
    87.
    发明授权
    Method and apparatus for decoding a video signal 有权

    公开(公告)号：US10015519B2

    公开(公告)日：2018-07-03

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

    CPC classification number: H04N19/61 ,  H04N19/119 ,  H04N19/122 ,  H04N19/129 ,  H04N19/149 ,  H04N19/176 ,  H04N19/18 ,  H04N19/625 ,  H05K999/99

    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.

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