中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

111 records (took 0.024 seconds)

    METHOD AND AN APPARATUS FOR PROCESSING A VIDEO SIGNAL
    3.
    发明申请
    METHOD AND AN APPARATUS FOR PROCESSING A VIDEO SIGNAL 有权

    公开(公告)号：US20220030282A1

    公开(公告)日：2022-01-27

    申请号：US17487466

    申请日：2021-09-28

    Applicant: LG ELECTRONICS INC.

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

    IPC: H04N19/91 ,  H04N19/159 ,  H04N19/18 ,  H04N19/176

    Abstract: The present invention relates to a video signal decoding method for adding an intra prediction mode as a sub-macroblock type to prediction of a macroblock in coding a video signal. Some implementations may include obtaining a macroblock type, when a macroblock includes the intra prediction coded sub-macroblock and the inter prediction coded sub-macroblock based on the macroblock type, obtaining prediction mode flag information indicating whether the sub-macroblock is the intra prediction coded or the inter prediction coded, and obtaining a prediction value of the sub-macroblock. Accordingly, implementations disclosed herein may raise coding efficiency of video signal by adding an intra prediction mode as a sub-macroblock type in predicting a macroblock.

    INTRA PREDICTION IN IMAGE PROCESSING
    4.
    发明申请
    INTRA PREDICTION IN IMAGE PROCESSING 审中-公开

    公开(公告)号：US20200213598A1

    公开(公告)日：2020-07-02

    申请号：US16805528

    申请日：2020-02-28

    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 ,  H04N19/176 ,  H04N19/593 ,  H04N19/117 ,  H04N19/86 ,  H04N19/00

    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.

    METHOD AND APPARATUS FOR DECODING A VIDEO SIGNAL
    7.
    发明申请
    METHOD AND APPARATUS FOR DECODING A VIDEO SIGNAL 审中-公开

    公开(公告)号：US20180278961A1

    公开(公告)日：2018-09-27

    申请号：US15993229

    申请日：2018-05-30

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

    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.

    METHOD TO DERIVE AT LEAST ONE MOTION VECTOR OF A BI-PREDICTIVE BLOCK IN A CURRENT PICTURE
    9.
    发明申请
    METHOD TO DERIVE AT LEAST ONE MOTION VECTOR OF A BI-PREDICTIVE BLOCK IN A CURRENT PICTURE 有权
    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：US20150264394A1

    公开(公告)日：2015-09-17

    申请号：US14698410

    申请日：2015-04-28

    Applicant: LG Electronics Inc.

    Inventor： Byeong Moon JEON

    IPC: H04N19/577 ,  H04N19/52

    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 by applying a bit operation to the scaled motion vector, the bit operation including 8 bits right shift.

    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图像之前并被允许位于当前图像之后的时间上，通过对比例运动矢量应用比特运算来缩放所选运动矢量并导出列表0和列表1双预测块的运动矢量 ，位操作包括8位右移。

    METHOD AND APPARATUS FOR DECODING A VIDEO SIGNAL
    10.
    发明申请
    METHOD AND APPARATUS FOR DECODING A VIDEO SIGNAL 有权
    用于解码视频信号的方法和装置

    公开(公告)号：US20150249840A1

    公开(公告)日：2015-09-03

    申请号：US14711129

    申请日：2015-05-13

    Applicant: LG Electronics Inc.

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

    IPC: H04N19/645 ,  H04N19/625

    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.

    Abstract translation: 本发明涉及一种视频信号解码方法，包括以下步骤：从视频信号中获取当前宏块的变换大小标志; 检查对应于变换大小标志的第一变换块中的每个像素位置处的非零变换系数的数量; 通过对第一变换块中具有最大数目的非零变换系数的像素的位置进行优先排列来改变第一变换块的扫描顺序; 确定第二变换块中每个像素位置处的非零变换系数的数目，并将第一变换块的改变的扫描顺序设置为第二变换块的初始化扫描顺序; 将第一变换块中的每个像素位置处的非零变换系数的数量和第二变换块中的每个像素位置处的非零变换系数的数量相加，并且将第二变换块的扫描顺序改变为 优先考虑具有最大数目的非零变换系数的像素的位置; 以及对在前一步骤中改变的扫描顺序排列的变换系数进行解码，其中第一变换块和第二变换块具有与变换大小标志对应的大小，并且被包含在当前宏块中。

Patent Agency Ranking