Method and apparatus for encoding and decoding motion vector based on reduced motion vector predictor candidates
    81.
    发明授权
    Method and apparatus for encoding and decoding motion vector based on reduced motion vector predictor candidates 有权
    基于减少的运动矢量预测器候选对编码和解码运动矢量的方法和装置

    公开(公告)号:US09565447B2

    公开(公告)日:2017-02-07

    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

    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。

    Video coding and decoding methods and video coding and decoding devices using adaptive loop filtering
    82.
    发明授权
    Video coding and decoding methods and video coding and decoding devices using adaptive loop filtering 有权
    视频编码和解码方法以及使用自适应环路滤波的视频编码和解码设备

    公开(公告)号:US09351000B2

    公开(公告)日:2016-05-24

    申请号:US13390350

    申请日:2010-08-12

    摘要: A method of decoding video, the method including receiving and parsing a bitstream which includes encoded video; extracting encoded image data relating to a current picture, which image data is assigned to at least one maximum coding unit, information relating to a coded depth and an encoding mode for each of the at least one maximum coding unit, and filter coefficient information for performing loop filtering on the current picture, from the bitstream; decoding the encoded image data in units of the at least one maximum coding unit, based on the information relating to the coded depth and the encoding mode for each of the at least one maximum coding unit; and performing deblocking on the decoded image data relating to the current picture, and performing loop filtering on the deblocked data, based on continuous one-dimensional (1D) filtering.

    摘要翻译: 一种解码视频的方法,所述方法包括接收和解析包括编码视频的比特流; 提取与当前图像有关的编码图像数据,哪个图像数据被分配给至少一个最大编码单元,与所述至少一个最大编码单元中的每一个的编码深度和编码模式相关的信息,以及用于执行的滤波器系数信息 对当前图片进行循环滤波; 基于与所述至少一个最大编码单元中的每一个的所述编码深度和所述编码模式有关的信息,对所述至少一个最大编码单元中的编码图像数据进行解码; 对与当前图像有关的解码图像数据执行解块,并且基于连续的一维(1D)滤波对去块数据进行环路滤波。

    METHOD AND DEVICE FOR ENCODING AND DECODING VIDEO
    84.
    发明申请
    METHOD AND DEVICE FOR ENCODING AND DECODING VIDEO 有权
    用于编码和解码视频的方法和设备

    公开(公告)号:US20140233634A1

    公开(公告)日:2014-08-21

    申请号:US14345098

    申请日:2012-09-14

    摘要: A method and apparatus for encoding and decoding a video are provided. The method of encoding the video includes: determining whether a unidirectional motion estimation mode and a bidirectional motion estimation mode are to be used based on a size of a current prediction unit to be encoded, performing the motion estimation and the motion compensation on the current prediction unit according to the determining of whether the unidirectional motion estimation mode and the bidirectional motion estimation mode are to be used, determining an optimum motion estimation mode of the current prediction unit based on an encoding cost of the current prediction unit obtained through the performing of the motion estimation and the motion compensation, and encoding information indicating the determined optimum motion estimation mode based on the size of the current prediction unit.

    摘要翻译: 提供了一种用于对视频进行编码和解码的方法和装置。 编码视频的方法包括:基于要编码的当前预测单元的大小来确定是否要使用单向运动估计模式和双向运动估计模式,对当前预测执行运动估计和运动补偿 根据确定是否使用单向运动估计模式和双向运动估计模式来确定当前预测单元的最佳运动估计模式;基于通过执行所述单向运动估计模式获得的当前预测单元的编码成本, 运动估计和运动补偿,以及基于当前预测单元的大小编码指示所确定的最佳运动估计模式的信息。

    METHOD AND APPARATUS FOR ENCODING MOTION INFORMATION USING SKIP MODE, AND METHOD AND APPARATUS FOR DECODING SAME
    86.
    发明申请
    METHOD AND APPARATUS FOR ENCODING MOTION INFORMATION USING SKIP MODE, AND METHOD AND APPARATUS FOR DECODING SAME 审中-公开
    用于使用跳过模式编码运动信息的方法和装置,以及用于解码它们的方法和装置

    公开(公告)号:US20140153648A1

    公开(公告)日:2014-06-05

    申请号:US14130087

    申请日:2012-07-02

    IPC分类号: H04N19/51

    摘要: An encoding method using a skip mode is provided. The method includes obtaining a plurality of motion information candidates of a current predictor by using at least one predictor which relates to the current predictor; determining a candidate that is most likely to be selected from among the obtained plurality of motion information candidates as a most probable prediction candidate, based on a predetermined standard; and when a prediction mode of the current predictor corresponds to a most probable skip mode when using the determined most probable prediction candidate, encoding a flag which indicates the most probable skip mode.

    摘要翻译: 提供了使用跳过模式的编码方法。 该方法包括通过使用与当前预测器相关的至少一个预测器来获得当前预测器的多个运动信息候选; 基于预定标准,将从所获得的多个运动信息候选中最可能被选择的候选确定为最可能的预测候选; 并且当使用所确定的最可能的预测候选者当当前预测器的预测模式对应于最可能的跳过模式时,编码指示最可能的跳过模式的标志。

    Intraprediction/interprediction method and apparatus
    87.
    发明授权
    Intraprediction/interprediction method and apparatus 有权
    Intraprediction / interprediction方法和装置

    公开(公告)号:US08639047B2

    公开(公告)日:2014-01-28

    申请号:US12017453

    申请日:2008-01-22

    IPC分类号: G06K9/36 G06K9/46

    摘要: An intraprediction/inter prediction method and apparatus is provided. In a method of intrapredicting an image processing unit of a current picture, the image processing unit including a plurality of sub blocks, a first prediction value of the image processing unit is generated by intrapredicting each of the sub blocks using pixels neighboring each of the sub blocks. A second prediction value of the image processing unit is generated by intrapredicting each of the sub blocks using pixels neighboring each of the sub blocks included in the first prediction value. Accordingly, an intrapredicted value or an intrapredicted motion vector can be more accurately obtained, so that the compression rate of image encoding is improved.

    摘要翻译: 提供了一种预测/帧间预测方法和装置。 在预测当前图像的图像处理单元的方法中,图像处理单元包括多个子块,通过使用与每个子像素相邻的像素预测每个子块来生成图像处理单元的第一预测值 块。 通过使用与包括在第一预测值中的每个子块相邻的像素对每个子块进行预测,来生成图像处理单元的第二预测值。 因此,可以更精确地获得预测值或非预测运动矢量,从而提高图像编码的压缩率。

    Method and apparatus for encoding and decoding image
    88.
    发明授权
    Method and apparatus for encoding and decoding image 有权
    图像编码和解码的方法和装置

    公开(公告)号:US08625670B2

    公开(公告)日:2014-01-07

    申请号:US12405330

    申请日:2009-03-17

    IPC分类号: H04N11/02

    摘要: Provided are a method and apparatus for encoding an image, which can variably encode a residual of a current block that is predicted with a skip mode according to prediction modes of neighboring blocks, and a method and apparatus for decoding the encoded image. When both the prediction mode of the current block and the prediction modes of the neighboring blocks are skip modes, since the method of encoding the image also encodes the residual of the current block that is predicted with the skip mode, more bits can be assigned to the current block with a high probability of acting as a reference block for other blocks.

    摘要翻译: 提供了一种用于编码图像的方法和装置,其可以根据相邻块的预测模式可变地编码用跳过模式预测的当前块的残差,以及用于对编码图像进行解码的方法和装置。 当当前块的预测模式和相邻块的预测模式都是跳过模式时,由于编码图像的方法也对以跳过模式预测的当前块的残差进行编码,因此可以将更多的比特分配给 当前块具有作为其他块的参考块的高概率。

    Method and apparatus for inter prediction encoding/decoding an image using sub-pixel motion estimation
    89.
    发明授权
    Method and apparatus for inter prediction encoding/decoding an image using sub-pixel motion estimation 有权
    用于使用子像素运动估计对帧间预测编码/解码图像的方法和装置

    公开(公告)号:US08503532B2

    公开(公告)日:2013-08-06

    申请号:US12211438

    申请日:2008-09-16

    IPC分类号: H04B1/66

    摘要: A method of inter prediction encoding of an image, the method including: searching for a first reference block in a reference picture by using a current block, and estimating a first motion vector in a first pel unit in regards to the first reference block; estimating a second motion vector by using pixels included in a pre-encoded area adjacent to the current block, and pixels adjacent to the first reference block, and determining a second reference block based on the second motion vector; and encoding the current block based on the first motion vector and the second reference block.

    摘要翻译: 一种图像的帧间预测编码方法,所述方法包括:通过使用当前块来搜索参考图像中的第一参考块,并且针对所述第一参考块估计第一像素单元中的第一运动矢量; 通过使用包括在与当前块相邻的预编码区域中的像素和与第一参考块相邻的像素来估计第二运动矢量,以及基于第二运动矢量确定第二参考块; 以及基于第一运动矢量和第二参考块对当前块进行编码。

    METHOD AND DEVICE FOR THE TRANSFORMATION AND METHOD AND DEVICE FOR THE REVERSE TRANSFORMATION OF IMAGES
    90.
    发明申请
    METHOD AND DEVICE FOR THE TRANSFORMATION AND METHOD AND DEVICE FOR THE REVERSE TRANSFORMATION OF IMAGES 审中-公开
    用于逆向转换图像的转换和方法和装置的方法和装置

    公开(公告)号:US20130195177A1

    公开(公告)日:2013-08-01

    申请号:US13876760

    申请日:2011-09-28

    IPC分类号: H04N7/26

    摘要: An image transforming method, an image transforming apparatus, an image inverse-transforming method, and an image inverse-transforming apparatus are provided. The image transforming method includes the operations of selecting a predetermined frequency area for performing a frequency transformation with respect to an M×N (where M and N are positive integers) input block, acquiring a truncated transform matrix by selecting elements to be used for a generation of transformation coefficients which correspond to the selected frequency area from among elements of an M×N transform matrix, and generating the transformation coefficients which correspond to the selected frequency area by performing the frequency transformation by applying the truncated transform matrix to the M×N input block.

    摘要翻译: 提供了图像变换方法,图像变换装置,图像逆变换方法以及图像逆变换装置。 图像变换方法包括选择用于对M×N(其中M和N是正整数)输入块执行频率变换的预定频率区域的操作,通过选择要用于 从M×N变换矩阵的元素中生成对应于所选择的频率区域的变换系数,并且通过将截断的变换矩阵应用于M×N来生成与选择的频率区域对应的变换系数 输入块。