公开(公告)号：US08446958B2

公开(公告)日：2013-05-21

申请号：US13130286

申请日：2010-09-21

申请人： Yoshiichiro Kashiwagi ,  Tao Chen ,  Takahiro Nishi

发明人： Yoshiichiro Kashiwagi ,  Tao Chen ,  Takahiro Nishi

IPC分类号： H04B1/66 ,  G06K9/36

CPC分类号： H04N19/36 ,  H04N19/136 ,  H04N19/184 ,  H04N19/187 ,  H04N19/34 ,  H04N19/56 ,  H04N19/597

摘要： An image coding apparatus using an encoder which places restrictions on the bit depth to codes a current image to be coded having a bit depth greater than a predetermined bit depth, and includes: a down-converter (102) which down-converts the current image into a base view image having a bit depth equal to or less than the predetermined bit depth; an MVC (multiview video coding) encoder (101) which codes the base view image and decodes the coded base view image to generate a reconstructed image; and a subtracter (103) which calculates differences between characteristics of pixel values of the pre-down-conversion current image and characteristics of the corresponding pixel values of the reconstructed image, and generates, using the calculated differences, a non-base view image having a bit depth equal to or less than the predetermined bit depth, wherein the MVC encoder (101) further codes the non-base view image.

摘要翻译： 一种使用编码器的图像编码装置，其对位深度进行限制，以对具有大于预定位深度的位深度进行编码的当前图像编码，并且包括：下变频器（102），其对当前图像进行下变频 成为具有等于或小于预定位深度的位深度的基本视图图像; 用于对基本视图图像进行编码并解码编码的基本视图图像以生成重建图像的MVC（多视角视频编码）编码器（101） 以及减法器（103），其计算所述下变频当前图像的像素值的特性与所述重构图像的对应像素值的特性之间的差异，并且使用所计算出的差异生成具有 等于或小于预定位深度的位深度，其中MVC编码器（101）还对非基本视图图像进行编码。

公开(公告)号：US20110222605A1

公开(公告)日：2011-09-15

申请号：US13130286

申请日：2010-09-21

申请人： Yoshiichiro Kashiwagi ,  Tao Chen ,  Takahiro Nishi

发明人： Yoshiichiro Kashiwagi ,  Tao Chen ,  Takahiro Nishi

IPC分类号： H04N7/32 ,  H04N7/26

CPC分类号： H04N19/36 ,  H04N19/136 ,  H04N19/184 ,  H04N19/187 ,  H04N19/34 ,  H04N19/56 ,  H04N19/597

摘要： An image coding apparatus using an encoder which places restrictions on the bit depth to codes a current image to be coded having a bit depth greater than a predetermined bit depth, and includes: a down-converter (102) which down-converts the current image into a base view image having a bit depth equal to or less than the predetermined bit depth; an MVC (multiview video coding) encoder (101) which codes the base view image and decodes the coded base view image to generate a reconstructed image; and a subtracter (103) which calculates differences between characteristics of pixel values of the pre-down-conversion current image and characteristics of the corresponding pixel values of the reconstructed image, and generates, using the calculated differences, a non-base view image having a bit depth equal to or less than the predetermined bit depth, wherein the MVC encoder (101) further codes the non-base view image.

摘要翻译： 一种使用编码器的图像编码装置，其对位深度进行限制，以对具有大于预定位深度的位深度进行编码的当前图像编码，并且包括：下变频器（102），其对当前图像进行下变频 成为具有等于或小于预定位深度的位深度的基本视图图像; 用于对基本视图图像进行编码并解码编码的基本视图图像以生成重建图像的MVC（多视角视频编码）编码器（101） 以及减法器（103），其计算所述下变频当前图像的像素值的特性与所述重构图像的对应像素值的特性之间的差异，并且使用所计算出的差异生成具有 等于或小于预定位深度的位深度，其中MVC编码器（101）还对非基本视图图像进行编码。

公开(公告)号：US08401074B2

公开(公告)日：2013-03-19

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： H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04B1/66

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.

公开(公告)号：US20110150083A1

公开(公告)日：2011-06-23

申请号：US13039104

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

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：US20080192838A1

公开(公告)日：2008-08-14

申请号：US10581019

申请日：2005-01-26

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

发明人： Tao Chen ,  Juihuai 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：US20080089410A1

公开(公告)日：2008-04-17

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： 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.

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：US08194734B2

公开(公告)日：2012-06-05

申请号：US13039104

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 ,  H04N5/44

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

摘要： A moving picture decoding apparatus includes: a quantization matrix holding unit (202) 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 decoding unit (201) that obtains the matrix ID corresponding to the quantization matrix (WM) used for quantization from the quantization matrix holding unit (202) and places the matrix ID in a coded stream Str.

摘要翻译： 运动图像解码装置包括：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，其与每个相关联 其他; 以及可变长度解码单元，其从量化矩阵保持单元（202）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：US07995650B2

公开(公告)日：2011-08-09

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： 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：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。