利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

61 条记录 (耗时 0.029 秒)

    Deblocking filtering method considering intra-BL mode and multilayer video encoder/decoder using the same
    1.
    发明申请
    Deblocking filtering method considering intra-BL mode and multilayer video encoder/decoder using the same 审中-公开
    考虑BL内模式的解块滤波方法及使用其的多层视频编解码器

    公开(公告)号：US20070025448A1

    公开(公告)日：2007-02-01

    申请号：US11483646

    申请日：2006-07-11

    申请人： Sang-chang Cha ,  Kyo-hyuk Lee ,  Bae-keun Lee ,  Woo-jin Han ,  Jae-young Lee ,  Ho-jin Ha

    发明人： Sang-chang Cha ,  Kyo-hyuk Lee ,  Bae-keun Lee ,  Woo-jin Han ,  Jae-young Lee ,  Ho-jin Ha

    IPC分类号： H04N11/04 ,  H04B1/66

    CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61

    摘要： Deblocking filter used in a video encoder/decoder based on a multilayer. In deciding a deblocking filter strength when performing a deblocking filtering with respect to a boundary between a current block coded by an intra-BL mode and its neighboring block, it is determined whether the current block or the neighboring block has coefficients. The filter strength is decided as a first filter strength if it is determined that the current block or the neighboring block has the coefficients, and the filter strength is decided as a second filter strength if it is determined that the current block or the neighboring block does not have the coefficients. The first filter strength is greater than the second filter strength.

    摘要翻译： 基于多层的视频编码器/解码器中使用的去块滤波器。 在对由BL模式编码的当前块与其相邻块之间的边界执行解块滤波时，决定解块滤波器强度时，确定当前块或相邻块是否具有系数。 如果确定当前块或相邻块具有系数，则将滤波器强度确定为第一滤波器强度，并且如果确定当前块或相邻块确定了滤波器强度，则将滤波器强度确定为第二滤波器强度 没有系数。 第一过滤强度大于第二过滤强度。

    Deblocking control method considering intra BL mode and multilayer video encoder/decoder using the same
    2.
    发明授权
    Deblocking control method considering intra BL mode and multilayer video encoder/decoder using the same 有权
    考虑内部BL模式的解块控制方法和使用相同的多层视频编码器/解码器

    公开(公告)号：US08542750B2

    公开(公告)日：2013-09-24

    申请号：US11322392

    申请日：2006-01-03

    申请人： Sang-chang Cha ,  Ho-jin Ha ,  Kyo-hyuk Lee ,  Bae-keun Lee ,  Jae-young Lee ,  Woo-jin Han

    发明人： Sang-chang Cha ,  Ho-jin Ha ,  Kyo-hyuk Lee ,  Bae-keun Lee ,  Jae-young Lee ,  Woo-jin Han

    IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/04 ,  H04N11/02

    CPC分类号： H04N19/61

    摘要： A deblocking filter used in a video encoder/decoder based on a multilayer is disclosed. The deblocking filtering method includes choosing a present block and its neighboring block on which a deblocking filtering will be performed, judging whether the present block and the neighboring block have been coded by the intra BL mode, choosing a deblocking filter strength according to the result of the judgment, and performing the deblocking filtering with respect to a boundary between the present block and the neighboring block and according to the deblocking filter strength.

    摘要翻译： 公开了一种用于基于多层的视频编码器/解码器中的去块滤波器。 解块滤波方法包括：选择当前块及其相邻块，在其上执行去块滤波，判断当前块和相邻块是否已经通过帧内BL模式进行编码，根据其结果选择解块滤波器强度 并且根据解块滤波器强度对当前块和相邻块之间的边界执行解块滤波。

    Method and apparatus for effectively compressing motion vectors in video coder based on multi-layer
    4.
    发明申请
    Method and apparatus for effectively compressing motion vectors in video coder based on multi-layer 有权
    基于多层视频编码器有效压缩运动矢量的方法和装置

    公开(公告)号：US20060088101A1

    公开(公告)日：2006-04-27

    申请号：US11254051

    申请日：2005-10-20

    申请人： Woo-jin Han ,  Kyo-hyuk Lee ,  Jae-young Lee ,  Sang-chang Cha ,  Bae-keun Lee ,  Ho-jin Ha

    发明人： Woo-jin Han ,  Kyo-hyuk Lee ,  Jae-young Lee ,  Sang-chang Cha ,  Bae-keun Lee ,  Ho-jin Ha

    IPC分类号： H04N11/02 ,  H04N7/12 ,  H04B1/66 ,  H04N11/04

    CPC分类号： H04N19/577 ,  H04N19/31 ,  H04N19/51 ,  H04N19/517

    摘要： A method and apparatus of improving the compression efficiency of a motion vector by efficiently predicting a motion vector in an enhancement layer from a motion vector in a base layer in a video coding method using a multi-layer are provided. The method includes obtaining a motion vector in a base layer frame having a first frame rate from an input frame, obtaining a motion vector in a first enhancement layer frame having a second frame rate from the input frame, the second frame rate being greater than the first frame rate, generating a predicted motion vector by referring to a motion vector for at least one frame among base layer frames present immediately before and after the same temporal position as the first enhancement layer frame if there is no base layer frame at the same temporal position as the first enhancement layer frame, and coding a difference between the motion vector in the first enhancement layer frame and the generated predicted motion vector, and the obtained motion vector in the base layer.

    摘要翻译： 提供一种通过使用多层的视频编码方法从基层中的运动矢量有效地预测增强层中的运动矢量来提高运动矢量的压缩效率的方法和装置。 该方法包括从输入帧获得具有第一帧速率的基本层帧中的运动矢量，从输入帧获得具有第二帧速率的第一增强层帧中的运动矢量，第二帧速率大于 第一帧速率，如果在相同时刻没有基本层帧的情况下，通过参考紧邻在与第一增强层帧相同的时间位置之前和之后的基本层帧中的至少一个帧的运动矢量来生成预测的运动矢量 位置作为第一增强层帧，并且编码第一增强层帧中的运动矢量与生成的预测运动矢量之间的差，以及所获得的基本层中的运动矢量。

    Method and apparatus for effectively compressing motion vectors in video coder based on multi-layer
    6.
    发明授权
    Method and apparatus for effectively compressing motion vectors in video coder based on multi-layer 有权
    基于多层视频编码器有效压缩运动矢量的方法和装置

    公开(公告)号：US08520962B2

    公开(公告)日：2013-08-27

    申请号：US13355619

    申请日：2012-01-23

    申请人： Woo-jin Han ,  Kyo-hyuk Lee ,  Jae-young Lee ,  Sang-chang Cha ,  Bae-keun Lee ,  Ho-jin Ha

    发明人： Woo-jin Han ,  Kyo-hyuk Lee ,  Jae-young Lee ,  Sang-chang Cha ,  Bae-keun Lee ,  Ho-jin Ha

    IPC分类号： G06K9/36 ,  G06K9/46

    CPC分类号： H04N19/577 ,  H04N19/31 ,  H04N19/51 ,  H04N19/517

    摘要： A method and apparatus of improving the compression efficiency of a motion vector is provided. The method includes obtaining a motion vector in a base layer frame having a first frame rate from an input frame, obtaining a motion vector in a first enhancement layer frame having a second frame rate from the input frame, the second frame rate being greater than the first frame rate, generating a predicted motion vector by referring to a motion vector for at least one frame among base layer frames present immediately before and after the same temporal position as the first enhancement layer frame if there is no base layer frame at the same temporal position as the first enhancement layer frame, and coding a difference between the motion vector in the first enhancement layer frame and the generated predicted motion vector, and the obtained motion vector in the base layer.

    摘要翻译： 提供了提高运动矢量的压缩效率的方法和装置。 该方法包括从输入帧获得具有第一帧速率的基本层帧中的运动矢量，从输入帧获得具有第二帧速率的第一增强层帧中的运动矢量，第二帧速率大于 第一帧速率，如果在相同时刻没有基本层帧的情况下，通过参考紧邻在与第一增强层帧相同的时间位置之前和之后的基本层帧中的至少一个帧的运动矢量来生成预测的运动矢量 位置作为第一增强层帧，并且编码第一增强层帧中的运动矢量与生成的预测运动矢量之间的差，以及所获得的基本层中的运动矢量。