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    METHOD OF PROCESSING VIDEO SIGNALS
    73.
    发明申请
    METHOD OF PROCESSING VIDEO SIGNALS 有权
    处理视频信号的方法

    公开(公告)号：US20150055702A1

    公开(公告)日：2015-02-26

    申请号：US14383357

    申请日：2013-03-06

    Applicant: LG ELECTRONICS INC.

    Inventor： Jin Heo ,  Jiwook Jung ,  Sehoon Yea ,  Moonmo Koo ,  Taesup Kim ,  Jaewon Sung ,  Eunyong Son

    IPC: H04N19/117 ,  H04N19/82 ,  H04N21/81 ,  H04N19/136

    CPC classification number: H04N19/117 ,  H04N19/136 ,  H04N19/82 ,  H04N21/816

    Abstract: According to the present invention, a method of processing a video signal includes the steps of: receiving the depth data corresponding to a given block containing present pixels; determining a variation of the depth data; comparing the variation of the depth data with a predetermined value; if the variation is less than the predetermined value, coding the present pixels by using a first partial filter, and if the variation is greater than the predetermined value, coding the present pixels by using a second partial filter; wherein the second partial filter is applied to a wider range than the first partial filter. Accordingly the image quality of improved; the complexity according to the filter application is reduced; and at the same time variable filtering may improve the coding efficiency.

    Abstract translation: 根据本发明，一种处理视频信号的方法包括以下步骤：接收对应于包含当前像素的给定块的深度数据; 确定深度数据的变化; 将深度数据的变化与预定值进行比较; 如果变化小于预定值，则通过使用第一部分滤波器对当前像素进行编码，并且如果变化大于预定值，则使用第二部分滤波器对当前像素进行编码; 其中所述第二部分滤波器被应用于比所述第一部分滤波器更宽的范围。 因此图像质量得到改善; 根据滤波器应用的复杂度降低; 并且同时可变滤波可以提高编码效率。

    METHOD AND DEVICE FOR PROCESSING VIDEO SIGNAL
    74.
    发明申请
    METHOD AND DEVICE FOR PROCESSING VIDEO SIGNAL 有权
    用于处理视频信号的方法和装置

    公开(公告)号：US20150043636A1

    公开(公告)日：2015-02-12

    申请号：US14383386

    申请日：2013-03-07

    Applicant: LG ELECTRONICS INC.

    Inventor： Jiwook Jung ,  Sehoon Yea ,  Moonmo Koo ,  Jin Heo ,  Taesup Kim ,  Jaewon Sung ,  Eunyong Son

    IPC: H04N19/597

    CPC classification number: H04N19/597 ,  G06T3/0093 ,  H04N19/124 ,  H04N19/463 ,  H04N19/51 ,  H04N19/537 ,  H04N19/59

    Abstract: The present invention encodes a warp map by using a video codec such as a multi-view texture image by a warp converter, and decodes a warp map by using a video codec such as a multi-view texture image by using a warp inverter. The present invention may incur less additional costs because it does not use a dedicated warp map coder. In addition, the present invention may convert a warp map by using a warp map converter and send the converted map to an encoder and invert decoded warp map information by using a warp map inverter so that the warp map is encoded and decoded by using a video codec such as a multi-view texture image. In addition, it is possible to increase compatibility by enabling various kinds of supplementary data to be used. In addition, it is possible to increase technique compatibility by simply applying a warp map scheme to a 3D video coding technique using a depth map.

    Abstract translation: 本发明通过使用诸如多维视图纹理图像的视频编解码器通过warp转换器对经线图进行编码，并且通过使用经线逆变器通过使用诸如多视图纹理图像的视频编解码器来解码经线图。 由于本发明不使用专用的经线图编码器，所以本发明可能会增加额外的成本。 此外，本发明可以通过使用经线映射转换器来转换经线图，并将转换的映射发送到编码器，并使用经线映射反相器反转解码的经线图信息，从而通过使用视频对经线图进行编码和解码 编解码器如多视图纹理图像。 此外，可以通过使各种补充数据的使用来提高兼容性。 此外，通过简单地将翘曲映射方案应用于使用深度图的3D视频编码技术，可以提高技术兼容性。

    Method and apparatus for decoding a video signal
    75.
    发明授权
    Method and apparatus for decoding a video signal 有权

    公开(公告)号：US12120352B2

    公开(公告)日：2024-10-15

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

    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.

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