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    Method and device for transformation of image and method and device for reverse transformation of image
    1.
    发明授权
    Method and device for transformation of image and method and device for reverse transformation of image 失效
    用于图像转换的方法和装置以及用于图像反向转换的方法和装置

    公开(公告)号：US08483501B2

    公开(公告)日：2013-07-09

    申请号：US13188868

    申请日：2011-07-22

    申请人： Tammy Lee ,  Il-Koo Kim ,  Min-Su Cheon ,  Yoon-Mi Hong

    发明人： Tammy Lee ,  Il-Koo Kim ,  Min-Su Cheon ,  Yoon-Mi Hong

    IPC分类号： G06K9/36

    CPC分类号： G06F17/147 ,  H04N19/60

    摘要： Provided are methods and apparatuses for transforming and inverse-transforming an image. The method of transforming an image includes: generating a substituted N×N transformation matrix by substituting elements of an N×N transformation matrix used for a 1-dimensional (1D) discrete cosine transform (DCT) of a N×N block of the image with values based on N variables, where N is an integer; obtaining a multiplication matrix of the substituted N×N transformation matrix and a transposed matrix of the substituted N×N transformation matrix; obtaining the N variables that enable a sum of squares of elements excluding diagonal components of the obtained multiplication matrix to be a minimum; and transforming the N×N block by using the substituted N×N transformation matrix, which is substituted with the values based on the obtained N variables.

    摘要翻译： 提供了用于变换和逆变换图像的方法和装置。 变换图像的方法包括：通过代替用于图像的N×N块的一维（1D）离散余弦变换（DCT）的N×N变换矩阵的元素来生成取代的N×N变换矩阵 基于N个变量的值，其中N是整数; 获得取代的N×N变换矩阵的乘法矩阵和取代的N×N变换矩阵的转置矩阵; 获得使除去所获得的乘法矩阵的对角线分量之外的元素的平方和的总和为最小的N个变量; 并且通过使用被替换的N×N变换矩阵来变换N×N块，其被基于获得的N个变量的值代替。

    VIDEO ENCODING METHOD AND APPARATUS USING LOW-COMPLEXITY FREQUENCY TRANSFORMATION, AND VIDEO DECODING METHOD AND APPARATUS
    2.
    发明申请
    VIDEO ENCODING METHOD AND APPARATUS USING LOW-COMPLEXITY FREQUENCY TRANSFORMATION, AND VIDEO DECODING METHOD AND APPARATUS 有权
    使用低复杂频率转换的视频编码方法和装置，以及视频解码方法和装置

    公开(公告)号：US20110310973A1

    公开(公告)日：2011-12-22

    申请号：US13148657

    申请日：2010-02-08

    申请人： Min-Su Cheon ,  Il-Koo Kim ,  Tammy Lee

    发明人： Min-Su Cheon ,  Il-Koo Kim ,  Tammy Lee

    IPC分类号： H04N11/02

    CPC分类号： H04N19/18 ,  H04N19/119 ,  H04N19/122 ,  H04N19/129 ,  H04N19/132 ,  H04N19/14 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

    摘要： Provided are a video encoding method and apparatus using a low-complexity transformation and a video decoding method and apparatus using a low-complexity inverse transformation. The video encoding method includes: receiving image data of an input picture in predetermined data units; generating coefficients of the predetermined data units by performing a low-complexity transformation on the image data; and outputting the generated coefficients. The low-complexity transformation includes at least one of a selective frequency-domain transformation that uses a transformation basis for a predetermined frequency-domain, a sub data unit transformation that performs a transformation by respectively selecting and applying transformation bases for a plurality of sub data units divided from the image data, and a scale-down transformation that uses a scale-down rectangular transformation basis that is a combination of a rectangular matrix and a square matrix.

    摘要翻译： 提供了使用低复杂度变换和使用低复杂度逆变换的视频解码方法和装置的视频编码方法和装置。 视频编码方法包括：以预定数据单位接收输入图像的图像数据; 通过对图像数据执行低复杂度变换来产生预定数据单元的系数; 并输出所生成的系数。 低复杂度变换包括对预定频域使用变换基础的选择性频域变换，通过分别选择并应用多个子数据的变换基础来执行变换的子数据单元变换中的至少一个 与图像数据分开的单位，以及使用矩形矩阵和矩形矩阵的组合的按比例缩小矩形变换的缩小变换。

    Video encoding method and apparatus using low-complexity frequency transformation, and video decoding method and apparatus
    3.
    发明授权
    Video encoding method and apparatus using low-complexity frequency transformation, and video decoding method and apparatus 有权
    使用低复杂度频率变换的视频编码方法和装置，以及视频解码方法和装置

    公开(公告)号：US09300972B2

    公开(公告)日：2016-03-29

    申请号：US13148657

    申请日：2010-02-08

    申请人： Min-Su Cheon ,  Il-Koo Kim ,  Tammy Lee

    发明人： Min-Su Cheon ,  Il-Koo Kim ,  Tammy Lee

    IPC分类号： H04N11/02 ,  H04N19/18 ,  H04N19/176 ,  H04N19/119 ,  H04N19/46 ,  H04N19/122 ,  H04N19/129 ,  H04N19/61 ,  H04N19/132 ,  H04N19/14

    CPC分类号： H04N19/18 ,  H04N19/119 ,  H04N19/122 ,  H04N19/129 ,  H04N19/132 ,  H04N19/14 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61

    摘要： Provided are a video encoding method and apparatus using a low-complexity transformation and a video decoding method and apparatus using a low-complexity inverse transformation. The video encoding method includes: receiving image data of an input picture in predetermined data units; generating coefficients of the predetermined data units by performing a low-complexity transformation on the image data; and outputting the generated coefficients. The low-complexity transformation includes at least one of a selective frequency-domain transformation that uses a transformation basis for a predetermined frequency-domain, a sub data unit transformation that performs a transformation by respectively selecting and applying transformation bases for a plurality of sub data units divided from the image data, and a scale-down transformation that uses a scale-down rectangular transformation basis that is a combination of a rectangular matrix and a square matrix.

    摘要翻译： 提供了使用低复杂度变换和使用低复杂度逆变换的视频解码方法和装置的视频编码方法和装置。 视频编码方法包括：以预定数据单位接收输入图像的图像数据; 通过对图像数据执行低复杂度变换来产生预定数据单元的系数; 并输出所生成的系数。 低复杂度变换包括对预定频域使用变换基础的选择性频域变换，通过分别选择并应用多个子数据的变换基础来执行变换的子数据单元变换中的至少一个 与图像数据分开的单位，以及使用矩形矩阵和矩形矩阵的组合的按比例缩小矩形变换的缩小变换。

    Method and apparatus for encoding images and method and apparatus for decoding images
    4.
    发明授权
    Method and apparatus for encoding images and method and apparatus for decoding images 有权
    用于编码图像的方法和装置以及用于解码图像的方法和装置

    公开(公告)号：US08768081B2

    公开(公告)日：2014-07-01

    申请号：US13386803

    申请日：2010-07-23

    申请人： Hae-Kyung Jung ,  Min-Su Cheon ,  Jung-Hye Min ,  Il-Koo Kim

    发明人： Hae-Kyung Jung ,  Min-Su Cheon ,  Jung-Hye Min ,  Il-Koo Kim

    IPC分类号： G06K9/36

    CPC分类号： H04N19/105 ,  G06T9/00 ,  H04N19/103 ,  H04N19/115 ,  H04N19/119 ,  H04N19/132 ,  H04N19/17 ,  H04N19/176 ,  H04N19/46 ,  H04N19/50 ,  H04N19/96

    摘要： Provided are methods and apparatuses for encoding and decoding an image. The method of encoding an image includes: splitting a current picture into at least one maximum coding unit; determining a split structure of the at least one maximum coding unit and a prediction mode and partitions of each coding unit by encoding image data of the at least one maximum coding unit based on depths of deeper coding units; setting skip information and split information about a split of a coding unit of an upper depth including each coding unit, according to the each coding unit; and encoding the split information and skip information, which are set according to each coding unit.

    摘要翻译： 提供了用于对图像进行编码和解码的方法和装置。 编码图像的方法包括：将当前图像分割成至少一个最大编码单元; 通过基于较深编码单位的深度对所述至少一个最大编码单元的图像数据进行编码来确定所述至少一个最大编码单元的分割结构和预测模式以及每个编码单元的分区; 根据每个编码单元设置关于包括每个编码单元的上层深度的编码单元的分割的跳过信息和分割信息; 并对根据每个编码单元设置的分割信息和跳过信息进行编码。

    METHOD AND APPARATUS FOR ENCODING IMAGES AND METHOD AND APPARATUS FOR DECODING IMAGES
    5.
    发明申请
    METHOD AND APPARATUS FOR ENCODING IMAGES AND METHOD AND APPARATUS FOR DECODING IMAGES 有权
    用于编码图像的方法和装置以及用于解码图像的方法和装置

    公开(公告)号：US20120128260A1

    公开(公告)日：2012-05-24

    申请号：US13386803

    申请日：2010-07-23

    申请人： Hae-Kyung Jung ,  Min-Su Cheon ,  Jung-Hye Min ,  Il-Koo Kim

    发明人： Hae-Kyung Jung ,  Min-Su Cheon ,  Jung-Hye Min ,  Il-Koo Kim

    IPC分类号： G06K9/36

    CPC分类号： H04N19/105 ,  G06T9/00 ,  H04N19/103 ,  H04N19/115 ,  H04N19/119 ,  H04N19/132 ,  H04N19/17 ,  H04N19/176 ,  H04N19/46 ,  H04N19/50 ,  H04N19/96

    摘要： Provided are methods and apparatuses for encoding and decoding an image. The method of encoding an image includes: splitting a current picture into at least one maximum coding unit; determining a split structure of the at least one maximum coding unit and a prediction mode and partitions of each coding unit by encoding image data of the at least one maximum coding unit based on depths of deeper coding units; setting skip information and split information about a split of a coding unit of an upper depth including each coding unit, according to the each coding unit; and encoding the split information and skip information, which are set according to each coding unit.

    摘要翻译： 提供了用于对图像进行编码和解码的方法和装置。 编码图像的方法包括：将当前图像分割成至少一个最大编码单元; 通过基于较深编码单位的深度对所述至少一个最大编码单元的图像数据进行编码来确定所述至少一个最大编码单元的分割结构和预测模式以及每个编码单元的分区; 根据每个编码单元设置关于包括每个编码单元的上层深度的编码单元的分割的跳过信息和分割信息; 并对根据每个编码单元设置的分割信息和跳过信息进行编码。

    Video coding and decoding methods and video coding and decoding devices using adaptive loop filtering
    6.
    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

    申请人： Tammy Lee ,  Woo-jin Han ,  Il-Koo Kim

    发明人： Tammy Lee ,  Woo-jin Han ,  Il-Koo Kim

    IPC分类号： H04N19/109 ,  H04N19/117 ,  H04N19/157 ,  H04N19/82

    CPC分类号： H04N19/146 ,  H04N19/105 ,  H04N19/109 ,  H04N19/117 ,  H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/14 ,  H04N19/157 ,  H04N19/159 ,  H04N19/172 ,  H04N19/182 ,  H04N19/184 ,  H04N19/51 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86 ,  H04N19/865

    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。

    VIDEO CODING AND DECODING METHODS AND VIDEO CODING AND DECODING DEVICES USING ADAPTIVE LOOP FILTERING
    7.
    发明申请
    VIDEO CODING AND DECODING METHODS AND VIDEO CODING AND DECODING DEVICES USING ADAPTIVE LOOP FILTERING 有权
    使用自适应环路滤波的视频编码和解码方法和视频编码和解码设备

    公开(公告)号：US20120140831A1

    公开(公告)日：2012-06-07

    申请号：US13390350

    申请日：2010-08-12

    申请人： Tammy Lee ,  Woo-Jin Han ,  Il-Koo Kim

    发明人： Tammy Lee ,  Woo-Jin Han ,  Il-Koo Kim

    IPC分类号： H04N7/26

    CPC分类号： H04N19/146 ,  H04N19/105 ,  H04N19/109 ,  H04N19/117 ,  H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/14 ,  H04N19/157 ,  H04N19/159 ,  H04N19/172 ,  H04N19/182 ,  H04N19/184 ,  H04N19/51 ,  H04N19/61 ,  H04N19/82 ,  H04N19/86 ,  H04N19/865

    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。

    Apparatus and method for switching between single description and multiple descriptions
    9.
    发明授权
    Apparatus and method for switching between single description and multiple descriptions 有权
    用于在单个描述和多个描述之间切换的装置和方法

    公开(公告)号：US08107530B2

    公开(公告)日：2012-01-31

    申请号：US11518356

    申请日：2006-09-11

    申请人： Il-Koo Kim ,  Nam-Ik Cho

    发明人： Il-Koo Kim ,  Nam-Ik Cho

    IPC分类号： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04J3/16 ,  H04J3/22

    CPC分类号： H04L1/0009 ,  H04N19/12 ,  H04N19/166 ,  H04N19/172 ,  H04N19/18 ,  H04N19/19 ,  H04N19/39 ,  H04N19/40

    摘要： Provided is an apparatus for and a method of transcoding video, in which, in the transmission of a compressed video, the compressed video is transcoded into multiple descriptions in an error prone environment and is transcoded into a single description in an lower error or errorless environment. Video transcoder includes a decoding unit, a single description/multiple description determining unit, and a transcoding unit. The decoding unit decodes a compressed video to generate video header, a motion vector, and a DCT (discrete cosine transform) coefficient for each frame. The single description/multiple description determining unit determines whether to perform transcoding into a single description or multiple descriptions based on the possibility of errors occurring in a transmission channel of the compressed video. The transcoding unit performs transcoding into the single description by coding the DCT coefficient together with the video header and the motion vector when the single description/multiple description determining unit determines to perform transcoding into the single description and performs transcoding into the multiple descriptions by dividing the DCT coefficient into a plurality of DCT coefficients and coding each of the DCT coefficients together with the video header and the motion vector when the single description/multiple description determining unit determines to perform transcoding into the multiple descriptions.

    摘要翻译： 提供了一种对视频进行代码转换的装置和方法，其中在压缩视频的传输中，压缩视频在易错环境中被转码为多个描述，并且在较低错误或无错误环境中被转码为单个描述 。 视频代码转换器包括解码单元，单个描述/多重描述确定单元和代码转换单元。 解码单元对压缩视频进行解码，以生成每帧的视频头，运动矢量和DCT（离散余弦变换）系数。 单个描述/多重描述确定单元基于在压缩视频的传输信道中出现错误的可能性来确定是否将代码转换为单个描述或多个描述。 代码转换单元通过在单个描述/多重描述确定单元确定执行代码转换为单个描述并且通过将代码转换分成多个描述来执行代码转换，将DCT系数与视频标题和运动矢量一起进行编码来执行代码转换为单个描述 DCT系数分解为多个DCT系数，并且当单个描述/多重描述确定单元确定执行代码转换为多个描述时，将每个DCT系数与视频标题和运动矢量一起编码。