知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

97 条记录 (耗时 0.023 秒)

    Method and apparatus for decoding a video signal
    93.
    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

    申请人： LG Electronics Inc.

    发明人： Jung Sun Kim ,  Seung Wook Park ,  Young Hee Choi ,  Jaewon Sung ,  Byeong Moon Jeon ,  Joon Young Park

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

    CPC分类号： H04N19/61 ,  H04N19/119 ,  H04N19/122 ,  H04N19/129 ,  H04N19/149 ,  H04N19/176 ,  H04N19/18 ,  H04N19/625 ,  H05K999/99

    摘要： 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 decoding a video signal
    96.
    发明授权
    Method and an 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：US09219914B2

    公开(公告)日：2015-12-22

    申请号：US14205591

    申请日：2014-03-12

    申请人： LG Electronics Inc.

    发明人： Seung Wook Park ,  Jung Sun Kim ,  Young Hee Choi ,  Byeong Moon Jeon ,  Joon Young Park

    IPC分类号： H04N7/12 ,  H04N19/51 ,  H04N19/176 ,  H04N19/70 ,  H04N19/46 ,  H04N19/513 ,  H04N19/61 ,  H04N19/132 ,  H04N19/44 ,  H04N19/573

    CPC分类号： H04N19/513 ,  H04N19/132 ,  H04N19/176 ,  H04N19/44 ,  H04N19/46 ,  H04N19/573 ,  H04N19/61 ,  H04N19/70

    摘要： 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.

    摘要翻译： 公开了一种处理视频信号的方法。 本发明包括获取当前宏块类型，根据当前宏块类型获得关于当前宏块的分区的跳过或直接模式指示信息，根据跳过或直接模式指示信息导出分区的运动矢量，并且预测 使用运动矢量的分区的像素值。 因此，本发明使用运动矢量来获得接近原始视频的参考块的像素值，从而提高宏块的重构率。 由于宏块使用跳过或直接预测指示信息，因此不需要对宏块分别编码跳过模式指示信息和直接模式指示信息，从而可以减少要编码的信息大小。

    METHOD FOR SELECTING MOTION VECTOR PREDICTOR AND DEVICE USING SAME
    97.
    发明申请
    METHOD FOR SELECTING MOTION VECTOR PREDICTOR AND DEVICE USING SAME 有权
    用于选择运动矢量预测器和使用该运动矢量预测器的装置的方法

    公开(公告)号：US20150208087A1

    公开(公告)日：2015-07-23

    申请号：US14673029

    申请日：2015-03-30

    申请人： LG Electronics Inc.

    发明人： Joon Young PARK ,  Seung Wook Park ,  Jae Hyun Lim ,  Jung Sun Kim ,  Young Hee Choi ,  Byeong Moon Jeon ,  Yong Joon Jeon

    IPC分类号： H04N19/56 ,  H04N19/513 ,  H04N19/52

    CPC分类号： H04N19/56 ,  H04N19/107 ,  H04N19/117 ,  H04N19/124 ,  H04N19/139 ,  H04N19/176 ,  H04N19/44 ,  H04N19/513 ,  H04N19/52 ,  H04N19/521 ,  H04N19/61

    摘要： A method for selecting a motion vector predictor is provided. The method of selecting a motion vector predictor includes the steps of selecting motion vector predictor candidates for a current block and selecting a motion vector predictor of the current block out of the motion vector predictor candidates, wherein the motion vector predictor candidates for the current block include a motion vector of a first candidate block which is first searched for as an available block out of left neighboring blocks of the current block and a motion vector of a second candidate block which is first searched for as an available block out of upper neighboring blocks of the current block.

    摘要翻译： 提供了一种用于选择运动矢量预测器的方法。 选择运动矢量预测器的方法包括以下步骤：为当前块选择运动矢量预测器候选，并从运动矢量预测器候选中选择当前块的运动矢量预测器，其中当前块的运动矢量预测器候选包括 第一候选块的运动矢量首先被搜索作为当前块的左邻近块中的可用块和第一候选块的运动矢量，该运动矢量首先从 当前块。