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    METHOD TO DERIVE AT LEAST ONE MOTION VECTOR OF A BI-PREDICTIVE BLOCK IN A CURRENT PICTURE
    83.
    发明申请
    METHOD TO DERIVE AT LEAST ONE MOTION VECTOR OF A BI-PREDICTIVE BLOCK IN A CURRENT PICTURE 审中-公开
    在当前图片中给出一个BI预测块的最小一个运动矢量的方法

    公开(公告)号：US20140098872A1

    公开(公告)日：2014-04-10

    申请号：US14103403

    申请日：2013-12-11

    Applicant: LG Electronics Inc.

    Inventor： Byeong Moon JEON

    IPC: H04N7/36

    CPC classification number: H04N19/577 ,  H04N19/105 ,  H04N19/157 ,  H04N19/176 ,  H04N19/50 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/521 ,  H04N19/56 ,  H04N19/573 ,  H04N19/61

    Abstract: In one embodiment, a method for a moving picture coding system to derive at least one motion vector of a bi-predictive block in a current picture from a motion vector of a first block in a first picture includes selecting, by the moving picture coding system, a list 1 motion vector of the first block in the first picture as a motion vector for deriving list 0 and list 1 motion vectors of the bi-predictive block if the first block only has the list 1 motion vector, the first picture being permitted to be located temporally before the current picture and permitted to be located temporally after the current picture, scaling the selected motion vector and deriving the list 0 and list 1 motion vectors of the bi-predictive block based on the scaled motion vector.

    Abstract translation: 在一个实施例中，一种运动图像编码系统从第一图像中的第一块的运动矢量导出当前图像中的双向预测块的至少一个运动矢量的方法包括：通过运动图像编码系统 ，第一图像中的第一块的列表1运动矢量作为用于导出列表0的运动矢量和列表1双预测块的运动矢量，如果第一块仅具有列表1运动矢量，则允许第一图像 位于时间上位于当前画面之前并被允许位于当前画面之后的时间上，缩放所选择的运动矢量，并且基于缩放的运动矢量导出列表0和列表1双预测块的运动矢量。

    METHOD AND APPARATUS FOR DECODING A VIDEO SIGNAL
    88.
    发明申请
    METHOD AND APPARATUS FOR DECODING A VIDEO SIGNAL 有权

    公开(公告)号：US20210211726A1

    公开(公告)日：2021-07-08

    申请号：US17208100

    申请日：2021-03-22

    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 ,  H04N19/625 ,  H04N19/129 ,  H04N19/18 ,  H04N19/149 ,  H04N19/119 ,  H04N19/122 ,  H04N19/176

    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.

    METHOD AND AN APPARATUS FOR PROCESSING A VIDEO SIGNAL
    90.
    发明申请
    METHOD AND AN APPARATUS FOR PROCESSING A VIDEO SIGNAL 审中-公开

    公开(公告)号：US20200221113A1

    公开(公告)日：2020-07-09

    申请号：US16820937

    申请日：2020-03-17

    Applicant: LG Electronics Inc.

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

    IPC: H04N19/513 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46 ,  H04N19/61 ,  H04N19/132 ,  H04N19/44 ,  H04N19/573

    Abstract: A method of processing a video signal is disclosed. The present invention includes obtaining a current macroblock type, obtaining skip or direct mode indication information on a partition of the current macroblock according to the current macroblock type, deriving a motion vector of the partition according to the skip or direct mode indication information, and predicting a pixel value of the partition using the motion vector. Accordingly, the present invention obtains a pixel value of a reference block close to an original video using a motion vector, thereby enhancing a reconstruction ratio of the macroblock. As a macroblock uses skip or direct prediction indication information, it is unnecessary to separately code skip mode indication information and direct mode indication information on the macroblock, whereby an information size to be coded can be reduced.

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