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    METHOD AND APPARATUS FOR ENCODING AND DECODING BASED ON INTRA PREDICTION
    1.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING BASED ON INTRA PREDICTION 审中-公开
    基于内部预测编码和解码的方法和装置

    公开(公告)号：US20080107175A1

    公开(公告)日：2008-05-08

    申请号：US11936454

    申请日：2007-11-07

    申请人： Woo-jin HAN ,  Bae-keun LEE ,  Tammy LEE

    发明人： Woo-jin HAN ,  Bae-keun LEE ,  Tammy LEE

    IPC分类号： H04N7/26

    CPC分类号： H04N19/537 ,  H04N19/557 ,  H04N19/56 ,  H04N19/593

    摘要： Provided are a method and apparatus for encoding and decoding based on intra prediction. The method of encoding based on intra prediction includes predicting a current block by searching for a pre-encoded area in a current picture using pre-encoded pixels adjacent to the current block, and intra prediction encoding the current block so that information indicating that the current block is intra predicted via the predicting of the current block is included. Accordingly, the compression rate of intra prediction encoding is increased even when the current block is not appropriately predicted by using a prediction value obtained from pixels adjacent to the current block.

    摘要翻译： 提供了一种基于帧内预测的编码和解码的方法和装置。 基于帧内预测的编码方法包括通过使用与当前块相邻的预编码像素搜索当前图像中的预编码区域来预测当前块，以及对当前块进行帧内预测编码，使得指示当前块的信息 通过包括当前块的预测来进行帧内预测。 因此，即使通过使用从与当前块相邻的像素获得的预测值来适当地预测当前块，帧内预测编码的压缩率也增加。

    METHOD AND APPARATUS FOR EFFECTIVELY COMPRESSING MOTION VECTORS IN VIDEO CODER BASED ON MULTI-LAYER
    3.
    发明申请
    METHOD AND APPARATUS FOR EFFECTIVELY COMPRESSING MOTION VECTORS IN VIDEO CODER BASED ON MULTI-LAYER 有权
    用于有效压缩基于多层视频编码器的运动矢量的方法和装置

    公开(公告)号：US20110110432A1

    公开(公告)日：2011-05-12

    申请号：US13005990

    申请日：2011-01-13

    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： H04N7/32

    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存在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
    4.
    发明申请
    METHOD AND APPARATUS FOR EFFECTIVELY COMPRESSING MOTION VECTORS IN VIDEO CODER BASED ON MULTI-LAYER 有权
    用于有效压缩基于多层视频编码器的运动矢量的方法和装置

    公开(公告)号：US20120189061A1

    公开(公告)日：2012-07-26

    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： H04N7/34 ,  H04N7/36

    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。

    METHOD AND APPARATUS FOR QUANTIZATION, AND METHOD AND APPARATUS FOR INVERSE QUANTIZATION
    5.
    发明申请
    METHOD AND APPARATUS FOR QUANTIZATION, AND METHOD AND APPARATUS FOR INVERSE QUANTIZATION 审中-公开
    用于量化的方法和装置，以及用于反向量化的方法和装置

    公开(公告)号：US20090147843A1

    公开(公告)日：2009-06-11

    申请号：US12206924

    申请日：2008-09-09

    申请人： Woo-jin HAN ,  Bae-keun LEE ,  So-young KIM

    发明人： Woo-jin HAN ,  Bae-keun LEE ,  So-young KIM

    IPC分类号： H04N7/26

    CPC分类号： H04N19/93 ,  H04N19/126 ,  H04N19/134 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/86

    摘要： Provided are a quantization method and apparatus and an inverse-quantization method and apparatus for determining quantization steps using lengths of runs that are transform coefficients having consecutive zero values and modifying the transform coefficients. The quantization apparatus can modify quantization steps so that the quantization steps are proportional to lengths of previous runs to quantize significant transform coefficients. As a result, a number of bits generated during coding can be reduced without a great deterioration of video quality.

    摘要翻译： 提供了一种量化方法和装置以及用于使用具有连续零值的变换系数并修改变换系数的运行长度确定量化步长的量化方法和装置。 量化装置可以修改量化步长，使得量化步长与先前运行的长度成比例，以量化有效的变换系数。 结果，可以减少编码期间产生的位数，而不会导致视频质量的极大恶化。

    METHOD AND APPARATUS FOR ENCODING VIDEO BY PERFORMING IN-LOOP FILTERING BASED ON TREE-STRUCTURED DATA UNIT, AND METHOD AND APPARATUS FOR DECODING VIDEO BY PERFORMING THE SAME
    6.
    发明申请
    METHOD AND APPARATUS FOR ENCODING VIDEO BY PERFORMING IN-LOOP FILTERING BASED ON TREE-STRUCTURED DATA UNIT, AND METHOD AND APPARATUS FOR DECODING VIDEO BY PERFORMING THE SAME 审中-公开
    通过执行基于树结构化数据单元的环路滤波来编码视频的方法和装置，以及通过执行视频来解码视频的方法和装置

    公开(公告)号：US20110243249A1

    公开(公告)日：2011-10-06

    申请号：US13080209

    申请日：2011-04-05

    申请人： Tammy LEE ,  Woo-jin HAN ,  Byeong-doo CHOI

    发明人： Tammy LEE ,  Woo-jin HAN ,  Byeong-doo CHOI

    IPC分类号： H04N7/26

    CPC分类号： H04N19/117 ,  H04N19/119 ,  H04N19/122 ,  H04N19/14 ,  H04N19/154 ,  H04N19/157 ,  H04N19/176 ,  H04N19/46 ,  H04N19/82 ,  H04N19/86 ,  H04N19/96

    摘要： An apparatus and method of encoding and an apparatus and method of decoding a video by performing in-loop filtering based on coding units are provided. The encoding method includes: splitting a picture into a maximum coding unit; separately determining coding units for outputting encoding results according to a coded depth for deeper coding units that are hierarchically structured according to depths indicating a number of times the coding units are spatially split from the maximum coding unit, wherein the coding units are hierarchical according to the depths in a same region in the maximum coding unit and are independent according to the coded depth in other regions; and determining a filtering unit for performing in-loop filtering so as to minimize an error between the maximum coding unit and an original picture, based on the coding units, and performing in-loop filtering based on the filtering unit.

    摘要翻译： 提供了一种编码装置和方法，以及通过基于编码单元执行循环滤波来对视频进行解码的装置和方法。 编码方法包括：将图像分割成最大编码单位; 根据根据指示从最大编码单位空间分割编号单元的次数的深度分级构造的较深编码单位的编码深度，分别确定用于输出编码结果的编码单位，其中，编码单位根据 深度在最大编码单位的相同区域中，并且根据其他区域中的编码深度是独立的; 以及确定用于执行环路滤波的滤波单元，以便基于所述编码单元最小化所述最大编码单元和原始图像之间的误差，以及基于所述滤波单元执行循环滤波。

    METHOD AND APPARATUS FOR ENCODING AND DECODING MOTION VECTOR BASED ON REDUCED MOTION VECTOR PREDICTOR CANDIDATES
    8.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING MOTION VECTOR BASED ON REDUCED MOTION VECTOR PREDICTOR CANDIDATES 有权
    基于减少运动矢量预测器候选的编码和解码运动矢量的方法和装置

    公开(公告)号：US20110176615A1

    公开(公告)日：2011-07-21

    申请号：US13009105

    申请日：2011-01-19

    申请人： Tammy LEE ,  Woo-jin HAN

    发明人： Tammy LEE ,  Woo-jin HAN

    IPC分类号： H04N7/32

    CPC分类号： H04N19/56 ,  H04N19/172 ,  H04N19/176 ,  H04N19/184 ,  H04N19/46 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61

    摘要： A method and apparatus for encoding and decoding a motion vector of a current block. The method of encoding including: generating information about the motion vector based on a motion vector of a current block and a motion vector predictor of the current block by estimating the motion vector and determining a first motion vector predictor candidate from among a plurality of motion vector predictor candidates as the motion vector predictor based on a result of the estimating; and generating a virtual motion vector by using a second motion vector predictor candidate and the information about the motion vector, generating vector differences between the virtual motion vector and the plurality of motion vector predictor candidates, comparing the vector differences with the information about the motion vector, and selectively excluding the second motion vector predictor candidate according to the comparing.

    摘要翻译： 一种用于对当前块的运动矢量进行编码和解码的方法和装置。 编码方法包括：基于当前块的运动矢量和当前块的运动矢量预测器，通过估计运动矢量并从多个运动矢量中确定第一运动矢量预测器候选来生成关于运动矢量的信息 基于估计结果的预测候选作为运动矢量预测器; 以及通过使用第二运动矢量预测器候选和关于运动矢量的信息来生成虚拟运动矢量，生成虚拟运动矢量和多个运动矢量预测器候选之间的矢量差，将矢量差与关于运动矢量的信息进行比较 ，并且根据该比较选择性地排除第二运动矢量预测器候选。