公开(公告)号：US20130022124A1

公开(公告)日：2013-01-24

申请号：US13638095

申请日：2011-03-07

申请人： Shunichi Sekiguchi ,  Yusuke Itani ,  Kazuo Sugimoto ,  Yoshihisa Yamada

发明人： Shunichi Sekiguchi ,  Yusuke Itani ,  Kazuo Sugimoto ,  Yoshihisa Yamada

IPC分类号： H04N7/32

CPC分类号： H04N19/00127 ,  H04N19/105 ,  H04N19/132 ,  H04N19/147 ,  H04N19/46 ,  H04N19/577 ,  H04N19/61 ,  H04N19/82

摘要： Disclosed is an image encoding device which is constructed in such a way as to include an encoding mode determining unit 4 for evaluating the degree of efficiency of encoding of a difference image A which is the difference between an image of a macroblock to be encoded, and a prediction image A generated by a motion-compensated prediction unit 2 in a motion prediction mode A, and also evaluating the degree of efficiency of encoding of a difference image B which is the difference between the image of the macroblock to be encoded, and a prediction image B generated by the motion-compensated prediction unit 2 in a motion prediction mode B, and for selecting a difference image having a higher degree of encoding efficiency.

摘要翻译： 公开了一种图像编码装置，其被构造为包括编码模式确定单元4，用于评估作为要编码的宏块的图像之间的差异的差分图像A的编码效率的程度，以及 由运动补偿预测单元2在运动预测模式A中生成的预测图像A，并且还评估作为要编码的宏块的图像之间的差异的差异图像B的编码效率和 由运动补偿预测单元2在运动预测模式B中生成的预测图像B，并且用于选择具有较高编码效率的差分图像。

公开(公告)号：US20120093427A1

公开(公告)日：2012-04-19

申请号：US13378943

申请日：2010-05-25

申请人： Yusuke Itani ,  Kazuo Sugimoto ,  Shunichi Sekiguchi ,  Akira Minezawa ,  Yoshimi Moriya ,  Norimichi Hiwasa ,  Shuichi Yamagishi ,  Yoshihisa Yamada ,  Yoshiaki Kato ,  Kohtaro Asai ,  Tokumichi Murakami

发明人： Yusuke Itani ,  Kazuo Sugimoto ,  Shunichi Sekiguchi ,  Akira Minezawa ,  Yoshimi Moriya ,  Norimichi Hiwasa ,  Shuichi Yamagishi ,  Yoshihisa Yamada ,  Yoshiaki Kato ,  Kohtaro Asai ,  Tokumichi Murakami

IPC分类号： G06K9/36

CPC分类号： H04N19/14 ,  H04N19/124 ,  H04N19/159

摘要： A quantizing matrix selecting part 3 for calculating the average and variance of brightness values in a prediction image created by a motion-compensated prediction unit 1, and selecting a quantizing matrix corresponding to the average and variance of brightness values in the prediction image from among a plurality of quantizing matrices which are prepared in advance is disposed, and a quantizing part 6 quantizes orthogonal transformation coefficients outputted from an orthogonal transformation part 5 with reference to the quantizing matrix selected by the quantizing matrix selecting part 3.

摘要翻译： 量化矩阵选择部分3，用于计算由运动补偿预测单元1创建的预测图像中的亮度值的平均值和方差，并且从预测图像中选择与预测图像中的亮度值的平均值和方差相对应的量化矩阵 配置预先准备的多个量化矩阵，量化部6参照由量化矩阵选择部3选择的量化矩阵，量化从正交变换部5输出的正交变换系数。

公开(公告)号：US20120087595A1

公开(公告)日：2012-04-12

申请号：US13378974

申请日：2010-05-25

申请人： Akira Minezawa ,  Shunichi Sekiguchi ,  Kazuo Sugimoto ,  Yusuke Itani ,  Yoshimi Moriya ,  Norimichi Hiwasa ,  Shuichi Yamagishi ,  Yoshihisa Yamada ,  Yoshiaki Kato ,  Kohtaro Asai ,  Tokumichi Murakami

发明人： Akira Minezawa ,  Shunichi Sekiguchi ,  Kazuo Sugimoto ,  Yusuke Itani ,  Yoshimi Moriya ,  Norimichi Hiwasa ,  Shuichi Yamagishi ,  Yoshihisa Yamada ,  Yoshiaki Kato ,  Kohtaro Asai ,  Tokumichi Murakami

IPC分类号： G06K9/36 ,  G06K9/46

CPC分类号： H04N19/117 ,  H04N19/139 ,  H04N19/14 ,  H04N19/147 ,  H04N19/167 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/61 ,  H04N19/82 ,  H04N19/91

摘要： A loop filter 6 includes a region classifying unit 12 for extracting a feature quantity of each of the regions which construct a local decoded image to classify each of the regions into the class to which the region belongs according to the feature quantity, and a filter designing and processing unit 13 for, for each class to which one or more regions, among the regions which construct the local decoded image, belong, generating a Wiener filter which minimizes an error occurring between an inputted image and the local decoded image in each of the one or more regions belonging to the class to compensate for a distortion superimposed onto the one or more regions by using the Wiener filter.

摘要翻译： 环路滤波器6包括区域分类单元12，用于提取构成局部解码图像的每个区域的特征量，以根据特征量将每个区域分类到该区域所属的类别;以及滤波器设计 以及处理单元13，对于构成局部解码图像的区域中的一个或多个区域的每个类属于生成维纳滤波器，该维纳滤波器使输入的图像和本地解码图像中的每个中的局部解码图像之间发生的误差最小化 属于该类别的一个或多个区域，以通过使用维纳滤波器来补偿叠加到一个或多个区域上的失真。

公开(公告)号：US08948243B2

公开(公告)日：2015-02-03

申请号：US13638095

申请日：2011-03-07

申请人： Shunichi Sekiguchi ,  Yusuke Itani ,  Kazuo Sugimoto ,  Yoshihisa Yamada

发明人： Shunichi Sekiguchi ,  Yusuke Itani ,  Kazuo Sugimoto ,  Yoshihisa Yamada

IPC分类号： H04N7/32 ,  H04N19/132 ,  H04N19/105 ,  H04N19/172 ,  H04N19/176 ,  H04N19/147 ,  H04N19/61 ,  H04N19/82 ,  H04N19/46

CPC分类号： H04N19/00127 ,  H04N19/105 ,  H04N19/132 ,  H04N19/147 ,  H04N19/46 ,  H04N19/577 ,  H04N19/61 ,  H04N19/82

摘要： Disclosed is an image encoding device which is constructed in such a way as to include an encoding mode determining unit 4 for evaluating the degree of efficiency of encoding of a difference image A which is the difference between an image of a macroblock to be encoded, and a prediction image A generated by a motion-compensated prediction unit 2 in a motion prediction mode A, and also evaluating the degree of efficiency of encoding of a difference image B which is the difference between the image of the macroblock to be encoded, and a prediction image B generated by the motion-compensated prediction unit 2 in a motion prediction mode B, and for selecting a difference image having a higher degree of encoding efficiency.

摘要翻译： 公开了一种图像编码装置，其被构造为包括编码模式确定单元4，用于评估作为要编码的宏块的图像之间的差异的差分图像A的编码效率的程度，以及 由运动补偿预测单元2在运动预测模式A中生成的预测图像A，并且还评估作为要编码的宏块的图像之间的差异的差异图像B的编码效率和 由运动补偿预测单元2在运动预测模式B中生成的预测图像B，并且用于选择具有较高编码效率的差分图像。

公开(公告)号：US09503718B2

公开(公告)日：2016-11-22

申请号：US14000305

申请日：2012-06-11

申请人： Yusuke Itani ,  Shunichi Sekiguchi ,  Kazuo Sugimoto ,  Tokumichi Murakami

发明人： Yusuke Itani ,  Shunichi Sekiguchi ,  Kazuo Sugimoto ,  Tokumichi Murakami

IPC分类号： H04N19/61 ,  H04N19/48 ,  H04N19/55 ,  H04N19/96

CPC分类号： H04N19/48 ,  H04N19/55 ,  H04N19/61 ,  H04N19/96

摘要： Disclosed is an image decoding method including a step of variable-length-decoding coded data multiplexed into a bitstream to acquire compressed data associated with a coding block, a reference image restriction flag indicating whether or not to restrict a significant reference image area which is an area on a reference image which can be used for the motion-compensated prediction, and motion information and a motion-compensated prediction step of carrying out a motion-compensated prediction process on the coding block on the basis of the motion information to generate a prediction image, in which the motion-compensated prediction step includes a step of when the prediction image includes a pixel located outside the significant reference image area, carrying out a predetermined extending process to generate the prediction image on the basis of the reference image restriction flag by using the motion information.

摘要翻译： 公开了一种图像解码方法，包括将多路复用到比特流中的编码数据进行可变长度解码以获取与编码块相关联的压缩数据的步骤，指示是否限制作为编码块的重要参考图像区域的参考图像限制标志 可以用于运动补偿预测的参考图像上的区域，以及基于运动信息对编码块执行运动补偿预测处理的运动信息和运动补偿预测步骤，以生成预测 图像，其中运动补偿预测步骤包括当预测图像包括位于有效参考图像区域之外的像素的步骤时，基于参考图像限制标志执行预定的扩展处理以生成预测图像 使用运动信息。

公开(公告)号：US20130177076A1

公开(公告)日：2013-07-11

申请号：US13824279

申请日：2011-07-21

申请人： Yusuke Itani ,  Shunichi Sekiguchi ,  Kazuo Sugimoto

发明人： Yusuke Itani ,  Shunichi Sekiguchi ,  Kazuo Sugimoto

IPC分类号： H04N7/26

CPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/109 ,  H04N19/124 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/52 ,  H04N19/521 ,  H04N19/61 ,  H04N19/82 ,  H04N19/91

摘要： When an encoding mode corresponding to one of blocks to be encoded into which an image is divided by a block dividing part 2 is an inter encoding mode which is a direct mode, a motion-compensated prediction part 5 selects a motion vector suitable for generation of a prediction image from one or more selectable motion vectors and also carries out a motion-compensated prediction process on the block to be encoded to generate a prediction image by using the motion vector, and outputs index information showing the motion vector to a variable length encoding part 13, and the variable length encoding unit 13 variable-length-encodes the index information.

公开(公告)号：US09369730B2

公开(公告)日：2016-06-14

申请号：US13824279

申请日：2011-07-21

申请人： Yusuke Itani ,  Shunichi Sekiguchi ,  Kazuo Sugimoto

发明人： Yusuke Itani ,  Shunichi Sekiguchi ,  Kazuo Sugimoto

IPC分类号： H04N7/26 ,  H04N19/513 ,  H04N19/51 ,  H04N19/52 ,  H04N19/61 ,  H04N19/109 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/82 ,  H04N19/91 ,  H04N19/124 ,  H04N19/44

CPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/109 ,  H04N19/124 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/52 ,  H04N19/521 ,  H04N19/61 ,  H04N19/82 ,  H04N19/91

摘要： When an encoding mode corresponding to one of blocks to be encoded into which an image is divided by a block dividing part 2 is an inter encoding mode which is a direct mode, a motion-compensated prediction part 5 selects a motion vector suitable for generation of a prediction image from one or more selectable motion vectors and also carries out a motion-compensated prediction process on the block to be encoded to generate a prediction image by using the motion vector, and outputs index information showing the motion vector to a variable length encoding part 13, and the variable length encoding unit 13 variable-length-encodes the index information.

摘要翻译： 当与由块分割部分2划分图像的要被编码的块中的一个对应的编码模式是作为直接模式的帧间编码模式时，运动补偿预测部分5选择适于生成 来自一个或多个可选择的运动矢量的预测图像，并且还对待编码的块执行运动补偿预测处理，以通过使用运动矢量生成预测图像，并将表示运动矢量的索引信息输出到可变长度编码 可变长度编码单元13对索引信息进行可变长度编码。

公开(公告)号：US20130343460A1

公开(公告)日：2013-12-26

申请号：US14000305

申请日：2012-06-11

申请人： Yusuke Itani ,  Shunichi Sekiguchi ,  Kazuo Sugimoto ,  Tokumichi Murakami

发明人： Yusuke Itani ,  Shunichi Sekiguchi ,  Kazuo Sugimoto ,  Tokumichi Murakami

IPC分类号： H04N7/26

CPC分类号： H04N19/48 ,  H04N19/55 ,  H04N19/61 ,  H04N19/96

摘要： Disclosed is an image decoding method including a step of variable-length-decoding coded data multiplexed into a bitstream to acquire compressed data associated with a coding block, a reference image restriction flag indicating whether or not to restrict a significant reference image area which is an area on a reference image which can be used for the motion-compensated prediction, and motion information and a motion-compensated prediction step of carrying out a motion-compensated prediction process on the coding block on the basis of the motion information to generate a prediction image, in which the motion-compensated prediction step includes a step of when the prediction image includes a pixel located outside the significant reference image area, carrying out a predetermined extending process to generate the prediction image on the basis of the reference image restriction flag by using the motion information.

摘要翻译： 公开了一种图像解码方法，包括将多路复用到比特流中的编码数据进行可变长度解码以获取与编码块相关联的压缩数据的步骤，指示是否限制作为编码块的重要参考图像区域的参考图像限制标志 可以用于运动补偿预测的参考图像上的区域，以及基于运动信息对编码块执行运动补偿预测处理的运动信息和运动补偿预测步骤，以生成预测 图像，其中运动补偿预测步骤包括当预测图像包括位于有效参考图像区域之外的像素的步骤时，基于参考图像限制标志执行预定的扩展处理以生成预测图像 使用运动信息。

公开(公告)号：US20110129016A1

公开(公告)日：2011-06-02

申请号：US13003431

申请日：2009-07-03

申请人： Shunichi Sekiguchi ,  Shuichi Yamagishi ,  Yusuke Itani ,  Yoshihisa Yamada ,  Yoshiaki Kato ,  Kohtaro Asai ,  Tokumichi Murakami

发明人： Shunichi Sekiguchi ,  Shuichi Yamagishi ,  Yusuke Itani ,  Yoshihisa Yamada ,  Yoshiaki Kato ,  Kohtaro Asai ,  Tokumichi Murakami

IPC分类号： H04N7/26

CPC分类号： H04N19/57 ,  H04N19/109 ,  H04N19/137 ,  H04N19/147 ,  H04N19/186 ,  H04N19/19 ,  H04N19/196 ,  H04N19/197 ,  H04N19/463 ,  H04N19/56 ,  H04N19/61

摘要： Provided are a device and a method for efficiently compressing information by performing improved removal of signal correlations according to statistical and local properties of a video signal in a 4:4:4 format which is to be encoded. The device includes: a prediction unit for determining, for each color component, a motion prediction mode exhibiting a highest efficiency among a plurality of motion prediction modes, and detecting a motion vector corresponding to the determined motion prediction mode, to thereby perform output; and a variable-length encoding unit for determining, when performing arithmetic coding on the motion prediction mode of the each color component, an occurrence probability of a value of the motion prediction mode of the each color component based on a motion prediction mode selected in a spatially-adjacent unit region and a motion prediction mode selected in a temporally-adjacent unit region, to thereby perform the arithmetic coding.

摘要翻译： 提供了一种通过根据将被编码的4：4：4格式的视频信号的统计和局部属性来改进信号相关性的去除来有效地压缩信息的装置和方法。 该装置包括：预测单元，用于为每个颜色分量确定在多个运动预测模式中呈现最高效率的运动预测模式，并且检测与所确定的运动预测模式相对应的运动矢量，从而执行输出; 以及可变长度编码单元，用于当对每个颜色分量的运动预测模式执行算术编码时，基于在每个颜色分量中选择的运动预测模式来确定每个颜色分量的运动预测模式的值的出现概率 空间相邻单元区域和在时间上相邻的单位区域中选择的运动预测模式，从而执行算术编码。

公开(公告)号：US08934548B2

公开(公告)日：2015-01-13

申请号：US13322820

申请日：2010-05-27

申请人： Shunichi Sekiguchi ,  Kazuo Sugimoto ,  Yusuke Itani ,  Akira Minezawa ,  Yoshiaki Kato

发明人： Shunichi Sekiguchi ,  Kazuo Sugimoto ,  Yusuke Itani ,  Akira Minezawa ,  Yoshiaki Kato

IPC分类号： H04N7/12 ,  H04N19/102 ,  H04N19/132 ,  H04N19/176 ,  H04N19/147 ,  H04N19/46 ,  H04N19/57 ,  H04N19/567 ,  H04N19/51 ,  H04N19/70 ,  H04N19/91 ,  H04N19/61 ,  H04N19/96

CPC分类号： H04N19/513 ,  H04N19/132 ,  H04N19/137 ,  H04N19/147 ,  H04N19/157 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/46 ,  H04N19/52 ,  H04N19/53 ,  H04N19/55 ,  H04N19/567 ,  H04N19/57 ,  H04N19/61 ,  H04N19/619 ,  H04N19/625 ,  H04N19/70 ,  H04N19/91 ,  H04N19/96

摘要： An image encoding device include a predicting unit for adaptively determining the size of each motion prediction unit block according to color component signals, and for dividing each motion prediction unit block into motion vector allocation regions to search for a motion vector, and a variable length encoding unit for, when a motion vector is allocated to the whole of each motion prediction unit block, performing encoding in mc_skip mode if the motion vector is equal to an estimated vector and a prediction error signal 5 does not exist, and for, when each motion vector allocation region has a size equal to or larger than a predetermined size and a motion vector is allocated to the whole of each motion vector allocation region, performing encoding in sub_mc_skip mode if the motion vector is equal to an estimated vector and a prediction error signal does not exist.

摘要翻译： 图像编码装置包括：预测单元，用于根据颜色分量信号自适应地确定每个运动预测单元块的大小，并且将每个运动预测单元块划分成运动矢量分配区域以搜索运动矢量;以及可变长度编码 当运动矢量被分配给每个运动预测单元块的整体时，如果运动矢量等于估计矢量并且预测误差信号5不存在，则以mc_skip模式执行编码，并且当每个运动 矢量分配区域具有等于或大于预定大小的大小，并且将运动矢量分配给每个运动矢量分配区域的整体，如果运动矢量等于估计矢量和预测误差信号，则以sub_mc_skip模式执行编码 不存在。