公开(公告)号：US20110110423A1

公开(公告)日：2011-05-12

申请号：US13004786

申请日：2011-01-11

申请人： Shinya Kadono ,  Yoshiichiro Kashiwagi ,  Jiuhuai Lu ,  Chong Soon Lim ,  Tao Chen

发明人： Shinya Kadono ,  Yoshiichiro Kashiwagi ,  Jiuhuai Lu ,  Chong Soon Lim ,  Tao Chen

IPC分类号： H04N7/26

CPC分类号： H04N19/136 ,  H04N19/126 ,  H04N19/176 ,  H04N19/196 ,  H04N19/463 ,  H04N19/61 ,  H04N19/91

摘要： The picture coding method according to the present invention is a picture coding method for coding a picture on a block-by-block basis through orthogonal transformation and quantization, and coding a quantization matrix that is used to derive quantization steps for frequencies of orthogonal transformation coefficients, the method comprising: calculating a difference value between each of frequency components included in the quantization matrix and a predetermined value corresponding to said each of the frequency components; and coding the difference value into a variable length code, wherein a code length of the variable length code is shorter as the difference value is smaller, or equal to a code length of a neighboring difference value of said difference value.

摘要翻译： 根据本发明的图像编码方法是一种图像编码方法，用于通过正交变换和量化在逐块的基础上编码图像，并且对用于导出正交变换系数的频率的量化步长的量化矩阵进行编码 该方法包括：计算包括在量化矩阵中的每个频率分量与对应于所述每个频率分量的预定值之间的差值; 以及将所述差值编码为可变长度码，其中所述可变长度码的码长度随着所述差值较小而变短，或等于所述差值的相邻差值的码长。

公开(公告)号：US20100054330A1

公开(公告)日：2010-03-04

申请号：US12607777

申请日：2009-10-28

申请人： Tao Chen ,  Jiuhuai Lu ,  Yoshiichiro Kashiwagi ,  Shinya Kadono ,  Chong Soon Lim

发明人： Tao Chen ,  Jiuhuai Lu ,  Yoshiichiro Kashiwagi ,  Shinya Kadono ,  Chong Soon Lim

IPC分类号： H04N7/26

CPC分类号： H04N19/42 ,  H04N19/126 ,  H04N19/46 ,  H04N19/61

摘要： The picture decoding method according to the present invention is a decoding method for decoding coded pictures by inverse quantization and inverse orthogonal transformation, in which a quantization matrix which defines a scaling ratio of a quantization step for each component is multiplied by a multiplier, which is a coefficient for frequency transformation or a quantization step, and also, a result of the multiplication is multiplied by a quantized value, as a process of inverse quantization.

摘要翻译： 根据本发明的图像解码方法是用于通过逆量化和逆正交变换对编码图像进行解码的解码方法，其中定义每个分量的量化步长的缩放比的量化矩阵乘以乘数，乘法器是 用于频率变换的系数或量化步长，并且乘法的结果乘以量化值作为逆量化的处理。

公开(公告)号：US08396116B2

公开(公告)日：2013-03-12

申请号：US13488242

申请日：2012-06-04

申请人： Jiuhuai Lu ,  Tao Chen ,  Yoshiichiro Kashiwagi ,  Shinya Kadono ,  Chong Soon Lim

发明人： Jiuhuai Lu ,  Tao Chen ,  Yoshiichiro Kashiwagi ,  Shinya Kadono ,  Chong Soon Lim

IPC分类号： H04N7/26 ,  H04N11/04 ,  H04N5/38

CPC分类号： H04N19/188 ,  H04N19/126 ,  H04N19/159 ,  H04N19/169 ,  H04N19/186 ,  H04N19/61 ,  H04N19/70

摘要： A moving picture coding apparatus 1 includes: a quantization matrix holding unit (112) that holds a quantization matrix (WM) which has already been transmitted in a parameter set and a matrix ID for identifying the quantization matrix (WM), which are associated with each other; and a variable length coding unit (111) that obtains the matrix ID corresponding to the quantization matrix (WM) used for quantization from the quantization matrix holding unit (112) and places the matrix ID in a coded stream Str.

摘要翻译： 运动图像编码装置1包括：量化矩阵保持单元，其保存已经在参数集中发送的量化矩阵（WM）和用于识别量化矩阵（WM）的矩阵ID，其与 彼此; 以及可变长度编码单元（111），其从量化矩阵保持单元（112）获得与用于量化的量化矩阵（WM）相对应的矩阵ID，并将矩阵ID放置在编码流Str中。

公开(公告)号：US20120314965A1

公开(公告)日：2012-12-13

申请号：US13579905

申请日：2011-12-21

申请人： Yoshiichiro Kashiwagi ,  Tao Chen

发明人： Yoshiichiro Kashiwagi ,  Tao Chen

IPC分类号： G06K9/36

CPC分类号： H04N19/30 ,  H04N19/597 ,  H04N19/98

摘要： An image coding apparatus to reduce data involved in coding a picture having a bit-depth higher than a bit-depth supported by an encoder, includes a down-converter which generates a base layer picture by down-converting a target picture to reduce the bit-depth of the target picture by a first value, a first encoder codes the base layer picture to generate a reconstructed picture by decoding the coded base layer picture, a subtractor performs shift amount adjustment on the reconstructed picture to increase the bit-depth of the reconstructed picture by a second value, and generates, based on the reconstructed picture on which the adjustment has been performed and the target picture, an enhancement layer picture for enhancing the quality of the base layer picture, a second encoder codes the enhancement layer picture; and an output unit outputs the coded base layer picture and the coded enhancement layer picture.

摘要翻译： 一种用于减少编码具有比编码器支持的比特深度的位深度的图像所涉及的数据的图像编码装置包括：下变频器，其通过对目标图像进行下变频来生成基本层图像，以减少位 目标图像的深度以第一值为单位，第一编码器对基本层图像进行编码，以通过对编码的基本层图像进行解码来生成重建图像，减法器对重构图像执行移位量调整，以增加对目标图像的位深度 根据第二值重建图像，并且基于已经执行了调整的重构图像和目标图像生成用于增强基本层图像的质量的增强层图像，第二编码器对增强层图像进行编码; 并且输出单元输出编码的基本层图像和编码的增强层图像。

公开(公告)号：US20120243604A1

公开(公告)日：2012-09-27

申请号：US13488242

申请日：2012-06-04

申请人： Jiuhuai Lu ,  Tao Chen ,  Yoshiichiro Kashiwagi ,  Shinya Kadono ,  Chong Soon Lim

发明人： Jiuhuai Lu ,  Tao Chen ,  Yoshiichiro Kashiwagi ,  Shinya Kadono ,  Chong Soon Lim

IPC分类号： H04N7/12

CPC分类号： H04N19/188 ,  H04N19/126 ,  H04N19/159 ,  H04N19/169 ,  H04N19/186 ,  H04N19/61 ,  H04N19/70

摘要： A moving picture coding apparatus 1 includes: a quantization matrix holding unit (112) that holds a quantization matrix (WM) which has already been transmitted in a parameter set and a matrix ID for identifying the quantization matrix (WM), which are associated with each other; and a variable length coding unit (111) that obtains the matrix ID corresponding to the quantization matrix (WM) used for quantization from the quantization matrix holding unit (112) and places the matrix ID in a coded stream Str.

公开(公告)号：US08218623B2

公开(公告)日：2012-07-10

申请号：US13039079

申请日：2011-03-02

申请人： Jiuhuai Lu ,  Tao Chen ,  Yoshiichiro Kashiwagi ,  Shinya Kadono ,  Chong Soon Lim

发明人： Jiuhuai Lu ,  Tao Chen ,  Yoshiichiro Kashiwagi ,  Shinya Kadono ,  Chong Soon Lim

IPC分类号： H04N7/26 ,  H04N11/04 ,  H04N5/38

CPC分类号： H04N19/188 ,  H04N19/126 ,  H04N19/159 ,  H04N19/169 ,  H04N19/186 ,  H04N19/61 ,  H04N19/70

摘要： A moving picture coding apparatus 1 includes: a quantization matrix holding unit (112) that holds a quantization matrix (WM) which has already been transmitted in a parameter set and a matrix ID for identifying the quantization matrix (WM), which are associated with each other; and a variable length coding unit (111) that obtains the matrix ID corresponding to the quantization matrix (WM) used for quantization from the quantization matrix holding unit (112) and places the matrix ID in a coded stream Str.

摘要翻译： 运动图像编码装置1包括：量化矩阵保持单元，其保存已经在参数集中发送的量化矩阵（WM）和用于识别量化矩阵（WM）的矩阵ID，其与 彼此; 以及可变长度编码单元（111），其从量化矩阵保持单元（112）获得与用于量化的量化矩阵（WM）相对应的矩阵ID，并将矩阵ID放置在编码流Str中。

公开(公告)号：US07933327B2

公开(公告)日：2011-04-26

申请号：US10569872

申请日：2005-01-26

申请人： Jiuhuai Lu ,  Tao Chen ,  Yoshiichiro Kashiwagi ,  Shinya Kadono ,  Chong Soon Lim

发明人： Jiuhuai Lu ,  Tao Chen ,  Yoshiichiro Kashiwagi ,  Shinya Kadono ,  Chong Soon Lim

IPC分类号： H04N11/02

CPC分类号： H04N19/188 ,  H04N19/126 ,  H04N19/159 ,  H04N19/169 ,  H04N19/186 ,  H04N19/61 ,  H04N19/70

摘要： A moving picture coding apparatus 1 includes: a quantization matrix holding unit (112) that holds a quantization matrix (WM) which has already been transmitted in a parameter set and a matrix ID for identifying the quantization matrix (WM), which are associated with each other; and a variable length coding unit (111) that obtains the matrix ID corresponding to the quantization matrix (WM) used for quantization from the quantization matrix holding unit (112) and places the matrix ID in a coded stream Str.

摘要翻译： 运动图像编码装置1包括：量化矩阵保持单元，其保存已经在参数集中发送的量化矩阵（WM）和用于识别量化矩阵（WM）的矩阵ID，其与 彼此; 以及可变长度编码单元（111），其从量化矩阵保持单元（112）获得与用于量化的量化矩阵（WM）相对应的矩阵ID，并将矩阵ID放置在编码流Str中。

公开(公告)号：US07912122B2

公开(公告)日：2011-03-22

申请号：US10569871

申请日：2005-01-19

申请人： Shinya Kadono ,  Yoshiichiro Kashiwagi ,  Jiuhuai Lu ,  Chong Soon Lim ,  Tao Chen

发明人： Shinya Kadono ,  Yoshiichiro Kashiwagi ,  Jiuhuai Lu ,  Chong Soon Lim ,  Tao Chen

IPC分类号： H04N11/02 ,  G06K9/36

CPC分类号： H04N19/136 ,  H04N19/126 ,  H04N19/176 ,  H04N19/196 ,  H04N19/463 ,  H04N19/61 ,  H04N19/91

摘要： The picture coding method according to the present invention is a picture coding method for coding a picture on a block-by-block basis through orthogonal transformation and quantization, and coding a quantization matrix that is used to derive quantization steps for frequencies of orthogonal transformation coefficients, the method comprising: calculating a difference value between each of frequency components included in the quantization matrix and a predetermined value corresponding to said each of the frequency components; and coding the difference value into a variable length code, wherein a code length of the variable length code is shorter as the difference value is smaller, or equal to a code length of a neighboring difference value of said difference value.

摘要翻译： 根据本发明的图像编码方法是一种图像编码方法，用于通过正交变换和量化在逐块的基础上编码图像，并且对用于导出正交变换系数的频率的量化步长的量化矩阵进行编码 该方法包括：计算包括在量化矩阵中的每个频率分量与对应于所述每个频率分量的预定值之间的差值; 以及将所述差值编码为可变长度码，其中所述可变长度码的码长度随着所述差值较小而变短，或等于所述差值的相邻差值的码长。

公开(公告)号：US20070292039A1

公开(公告)日：2007-12-20

申请号：US10569871

申请日：2005-01-19

申请人： Shinya Kadono ,  Yoshiichiro Kashiwagi ,  Jiuhuai Lu ,  Chong Soon Lim ,  Tao Chen

发明人： Shinya Kadono ,  Yoshiichiro Kashiwagi ,  Jiuhuai Lu ,  Chong Soon Lim ,  Tao Chen

IPC分类号： G06K9/36

CPC分类号： H04N19/136 ,  H04N19/126 ,  H04N19/176 ,  H04N19/196 ,  H04N19/463 ,  H04N19/61 ,  H04N19/91

摘要： The picture coding method according to the present invention is a picture coding method for coding a picture on a block-by-block basis through orthogonal transformation and quantization, and coding a quantization matrix that is used to derive quantization steps for frequencies of orthogonal transformation coefficients, the method comprising: calculating a difference value between each of frequency components included in the quantization matrix and a predetermined value corresponding to said each of the frequency components; and coding the difference value into a variable length code, wherein a code length of the variable length code is shorter as the difference value is smaller, or equal to a code length of a neighboring difference value of said difference value.

摘要翻译： 根据本发明的图像编码方法是一种图像编码方法，用于通过正交变换和量化在逐块的基础上编码图像，并且对用于导出正交变换系数的频率的量化步长的量化矩阵进行编码 该方法包括：计算包括在量化矩阵中的每个频率分量与对应于所述每个频率分量的预定值之间的差值; 以及将所述差值编码为可变长度码，其中所述可变长度码的码长度随着所述差值较小而变短，或等于所述差值的相邻差值的码长。

公开(公告)号：US08477838B2

公开(公告)日：2013-07-02

申请号：US13488169

申请日：2012-06-04

申请人： Jiuhuai Lu ,  Tao Chen ,  Yoshiichiro Kashiwagi ,  Shinya Kadono ,  Chong Soon Lim

发明人： Jiuhuai Lu ,  Tao Chen ,  Yoshiichiro Kashiwagi ,  Shinya Kadono ,  Chong Soon Lim

IPC分类号： H04N7/26 ,  H04N11/04 ,  H04N5/38

CPC分类号： H04N19/188 ,  H04N19/126 ,  H04N19/159 ,  H04N19/169 ,  H04N19/186 ,  H04N19/61 ,  H04N19/70

摘要： A coding method for coding a picture in a moving picture with a processor configured to code, on a block-by-basis, each picture in the moving picture, to generate a coded stream. The processor transforms each picture into coefficients representing spatial frequency components and quantizes the coefficients with a quantization matrix. Identification information identifying the quantization matrix is provided in the coded stream in predetermined units to reduce the amount of data to be coded. The processor is configured to use a coded quantization matrix for a chroma component rather than a default quantization matrix.

摘要翻译： 一种编码方法，用于对运动图像中的图像进行编码，其中处理器被配置为在逐帧的基础上对运动图像中的每个图像进行编码，以生成编码流。 处理器将每个图像变换成表示空间频率分量的系数，并用量化矩阵量化系数。 识别量化矩阵的识别信息以预定单位提供在编码流中以减少要编码的数据量。 处理器被配置为对色度分量而不是默认量化矩阵使用编码量化矩阵。