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1. 发明申请

US20130034166A1 IMAGE ENCODING METHOD AND IMAGE DECODING METHOD 有权
标题翻译：图像编码方法和图像解码方法
公开(公告)号：US20130034166A1
公开(公告)日：2013-02-07
申请号：US13647140
申请日：2012-10-08
申请人： Taichiro SHIODERA , Saori Asaka , Akiyuki Tanizawa , Takeshi Chujoh
发明人： Taichiro SHIODERA , Saori Asaka , Akiyuki Tanizawa , Takeshi Chujoh
IPC分类号： H04N7/32
CPC分类号： H04N19/521 , H04N19/105 , H04N19/109 , H04N19/119 , H04N19/124 , H04N19/137 , H04N19/139 , H04N19/15 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/52 , H04N19/61 , H04N19/70 , H04N19/96
摘要： According to one embodiment, an image encoding method includes selecting a motion reference block from an encoded pixel block to which an inter prediction is applied. The method includes selecting one or more available blocks from the motion reference block. The method includes selecting a selection block from the available blocks. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information specifying the selection block by referring to a code table decided according to a number of the available blocks.
摘要翻译：根据一个实施例，图像编码方法包括从应用帧间预测的编码像素块中选择运动参考块。该方法包括从运动参考块中选择一个或多个可用块。该方法包括从可用块中选择一个选择块。该方法包括使用选择块的运动信息生成编码对象块的预测图像。该方法包括对预测图像与原始图像之间的预测误差进行编码。该方法包括通过参考根据可用块的数量确定的代码表来编码指定选择块的选择信息。

2. 发明申请

US20090310677A1 IMAGE ENCODING AND DECODING METHOD AND APPARATUS 审中-公开
标题翻译：图像编码和解码方法和装置
公开(公告)号：US20090310677A1
公开(公告)日：2009-12-17
申请号：US12375230
申请日：2006-07-28
申请人： Taichiro Shiodera , Akiyuki Tanizawa , Takeshi Chujoh
发明人： Taichiro Shiodera , Akiyuki Tanizawa , Takeshi Chujoh
IPC分类号： G06K9/36 , G06K9/46 , H04N7/32
CPC分类号： H04N19/19 , H04N19/11 , H04N19/119 , H04N19/147 , H04N19/593 , H04N19/70
摘要： An image encoding apparatus includes a first selector selecting a prediction-order to sub-blocks obtained by further dividing pixel-blocks obtained by dividing a frame of an input-image-signal from predetermined prediction-orders, a second selector selecting, from prediction-modes regulating a manner of referring to an encoded-pixel when a first-prediction-signal of each-sub-block is generated with reference to the encoded-pixel, the number of prediction-modes used in prediction of the first-prediction-signal, a third selector selecting prediction-modes the number of which is the selected number from prediction-modes to use the prediction-modes in prediction of the first-prediction-signal, a generator generating the first-prediction-signal in the selected prediction order by using the selected prediction-modes the number of which is the selected number to generate a second-prediction-signal corresponding to the pixelblock, and an encoder encoding a prediction-residual-error-signal expressing a difference between an image-signal of the pixel-block and the second-prediction-signal to generate encoded data obtained by the prediction-encoding.
摘要翻译：一种图像编码装置包括：第一选择器，对通过对从预定预测顺序划分输入图像信号的帧而获得的像素块进行分割而获得的子块进行预测顺序;第二选择器，参照编码像素生成每个子块的第一预测信号时，调整参考编码像素的方式的模式，用于预测第一预测信号的预测模式的数量从预测模式中选择预测模式的第三选择器，以预测模式预测模式，以在第一预测信号的预测中使用预测模式;生成器，以所选择的预测顺序生成第一预测信号通过使用其选择数量的所选择的预测模式来生成与像素块对应的第二预测信号，以及编码预测残差误差信号expr 提出像素块的图像信号与第二预测信号之间的差异，以生成通过预测编码获得的编码数据。

3. 发明授权

US09113139B2 Moving-picture encoding apparatus and moving-picture decoding apparatus 有权
公开(公告)号：US09113139B2
公开(公告)日：2015-08-18
申请号：US13716916
申请日：2012-12-17
申请人： Akiyuki Tanizawa , Taichiro Shiodera , Takeshi Chujoh , Jun Yamaguchi
发明人： Akiyuki Tanizawa , Taichiro Shiodera , Takeshi Chujoh , Jun Yamaguchi
IPC分类号： H04N19/00 , H04N19/103 , H04N19/159 , H04N19/176 , H04N19/147 , H04N19/122 , H04N19/129 , H04N19/11 , H04N19/12 , H04N19/136 , H04N19/18 , H04N19/61
CPC分类号： H04N19/103 , H04N19/11 , H04N19/12 , H04N19/122 , H04N19/129 , H04N19/136 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/61 , H04N19/91
摘要： According to one embodiment, an encoding apparatus includes a prediction unit, a classifying unit, a first transformer, a second transformer, an order controller, and an entropy coder. The prediction unit obtains a predictive residual signal to be encoded, by using a mode selected from intra-prediction modes. The first transformer obtains first transformation coefficients by subjecting the signal to an orthogonal transformation by use of a first transformation basis if the selected mode is classified into a mode having a prediction direction. The first transformation basis is preset so that a coefficient density after the orthogonal transformation is higher than a coefficient density.

4. 发明申请

US20100118943A1 METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE 审中-公开
标题翻译：用于编码和解码图像的方法和装置
公开(公告)号：US20100118943A1
公开(公告)日：2010-05-13
申请号：US12522614
申请日：2008-01-09
申请人： Taichiro Shiodera , Akiyuki Tanizawa , Takeshi Chujoh
发明人： Taichiro Shiodera , Akiyuki Tanizawa , Takeshi Chujoh
IPC分类号： H04N7/26
CPC分类号： H04N19/182 , H04N19/105 , H04N19/11 , H04N19/176 , H04N19/593 , H04N19/61
摘要： An image encoding apparatus includes a multidirectional predicting unit configured to predict a plurality of pixel blocks by using an encoded pixel as a reference pixel according to a plurality of prediction modes having different prediction directions to generate a plurality of first prediction signals corresponding to the pixel blocks obtained by dividing a frame of an input image signal a setting unit configured to set a weighting factor depending on the prediction directions of the plurality of prediction modes and a spatial distance between a prediction pixel in the pixel block and the reference pixel, a weighted average unit configured to calculate a weighted average of the plurality of first prediction signals according to the weighting factor to generate one second prediction signal corresponding to the pixel blocks, and an encoding unit configured to encode a prediction residual error signal representing a difference between an image signal of the pixel block and at least the second prediction signal to generate encoded data.
摘要翻译：一种图像编码装置包括：多向预测单元，被配置为根据具有不同预测方向的多个预测模式，通过使用编码像素作为参考像素来预测多个像素块，以生成与像素块对应的多个第一预测信号通过将输入图像信号的帧分割成根据多个预测模式的预测方向设定加权系数的设定单位和像素块中的预测像素与参考像素之间的空间距离的加权平均值被配置为根据加权因子计算多个第一预测信号的加权平均值，以生成与像素块对应的一个第二预测信号;以及编码单元，对表示图像信号之间的差的预测残差信号进行编码的像素块和至少第二预测信号以产生编码数据。

5. 发明授权

US10009623B2 Image encoding method and image decoding method 有权
公开(公告)号：US10009623B2
公开(公告)日：2018-06-26
申请号：US13647140
申请日：2012-10-08
申请人： Taichiro Shiodera , Saori Asaka , Akiyuki Tanizawa , Takeshi Chujoh
发明人： Taichiro Shiodera , Saori Asaka , Akiyuki Tanizawa , Takeshi Chujoh
IPC分类号： H04N19/105 , H04N19/119 , H04N19/124 , H04N19/137 , H04N19/139 , H04N19/15 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/61 , H04N19/70 , H04N19/96 , H04N19/513 , H04N19/52
CPC分类号： H04N19/521 , H04N19/105 , H04N19/109 , H04N19/119 , H04N19/124 , H04N19/137 , H04N19/139 , H04N19/15 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/52 , H04N19/61 , H04N19/70 , H04N19/96
摘要： According to one embodiment, an image encoding method includes selecting a motion reference block from an encoded pixel block to which an inter prediction is applied. The method includes selecting one or more available blocks from the motion reference block. The method includes selecting a selection block from the available blocks. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information specifying the selection block by referring to a code table decided according to a number of the available blocks.

6. 发明授权

US09113138B2 Moving-picture encoding apparatus and moving-picture decoding apparatus 有权
公开(公告)号：US09113138B2
公开(公告)日：2015-08-18
申请号：US13543237
申请日：2012-07-06
申请人： Akiyuki Tanizawa , Taichiro Shiodera , Takeshi Chujoh , Jun Yamaguchi
发明人： Akiyuki Tanizawa , Taichiro Shiodera , Takeshi Chujoh , Jun Yamaguchi
IPC分类号： H04N19/00 , H04N19/103 , H04N19/159 , H04N19/176 , H04N19/147 , H04N19/122 , H04N19/129 , H04N19/11 , H04N19/12 , H04N19/136 , H04N19/18 , H04N19/61
CPC分类号： H04N19/103 , H04N19/11 , H04N19/12 , H04N19/122 , H04N19/129 , H04N19/136 , H04N19/147 , H04N19/159 , H04N19/176 , H04N19/18 , H04N19/61 , H04N19/91
摘要： According to one embodiment, an encoding apparatus includes a prediction unit, a classifying unit, a first transformer, a second transformer, an order controller, and an entropy coder. The prediction unit obtains a predictive residual signal to be encoded, by using a mode selected from intra-prediction modes. The first transformer obtains first transformation coefficients by subjecting the signal to an orthogonal transformation by use of a first transformation basis if the selected mode is classified into a mode having a prediction direction. The first transformation basis is preset so that a coefficient density after the orthogonal transformation is higher than a coefficient density.

7. 发明申请

US20130028328A1 IMAGE ENCODING METHOD AND IMAGE DECODING METHOD 审中-公开
标题翻译：图像编码方法和图像解码方法
公开(公告)号：US20130028328A1
公开(公告)日：2013-01-31
申请号：US13647124
申请日：2012-10-08
申请人： Taichiro Shiodera , Saori Asaka , Akiyuki Tanizawa , Takeshi Chujoh
发明人： Taichiro Shiodera , Saori Asaka , Akiyuki Tanizawa , Takeshi Chujoh
IPC分类号： H04N7/32
CPC分类号： H04N19/521 , H04N19/105 , H04N19/109 , H04N19/119 , H04N19/124 , H04N19/137 , H04N19/139 , H04N19/15 , H04N19/159 , H04N19/176 , H04N19/182 , H04N19/52 , H04N19/61 , H04N19/70 , H04N19/96
摘要： According to one embodiment, an image encoding method includes selecting a motion reference block from an already-encoded pixel block. The method includes selecting an available block including different motion information from the motion reference block, and selecting a selection block from the available block. The method includes generating a predicted image of the encoding target block using motion information of the selection block. The method includes encoding a prediction error between the predicted image and an original image. The method includes encoding selection information identifying the selection block by referring to a code table decided according to a number of the available block.
摘要翻译：根据一个实施例，图像编码方法包括从已经编码的像素块中选择运动参考块。该方法包括从运动参考块中选择包括不同运动信息的可用块，以及从可用块中选择一个选择块。该方法包括使用选择块的运动信息生成编码对象块的预测图像。该方法包括对预测图像与原始图像之间的预测误差进行编码。该方法包括通过参考根据可用块的数量确定的代码表来对识别选择块的选择信息进行编码。

8. 发明申请

US20100118945A1 METHOD AND APPARATUS FOR VIDEO ENCODING AND DECODING 审中-公开
标题翻译：视频编码和解码的方法和装置
公开(公告)号：US20100118945A1
公开(公告)日：2010-05-13
申请号：US12532057
申请日：2008-03-18
申请人： Naofumi Wada , Takeshi Chujoh , Tadaaki Masuda , Reiko Noda , Akiyuki Tanizawa , Goki Yasuda , Taichiro Shiodera
发明人： Naofumi Wada , Takeshi Chujoh , Tadaaki Masuda , Reiko Noda , Akiyuki Tanizawa , Goki Yasuda , Taichiro Shiodera
IPC分类号： H04N7/32
CPC分类号： H04N19/19 , H04N19/11 , H04N19/119 , H04N19/174 , H04N19/176 , H04N19/593 , H04N19/70
摘要： An video encoding apparatus includes a dividing unit 101 to divide an input image signal into to-be-encoded pixel blocks, a reblocking unit 102 to reblock each of the to-be-encoded pixel blocks to generate a first pixel block and a second pixel block, a first prediction unit 108A to perform prediction for the first pixel block using a first local decoded image corresponding to an encoded pixel to generate a first predicted image, a generation unit to generate a second local decoded image corresponding to the first pixel block using a first prediction error representing the difference between the first pixel block and the first predicted image, a second prediction unit 108B to perform prediction for the second pixel block using the first local decoded image and the second local decoded image to generate a second predicted image, an encoding unit 103-105 to transform and encode the first prediction error and a second prediction error representing the difference between the second pixel block and the second predicted image to generate first encoded data and second encoded data, and a multiplexing unit 111 to multiplex the first encoded data and the second encoded data to generate an encoded bitstream.
摘要翻译：视频编码装置包括：分割单元101，用于将输入图像信号分割成待编码的像素块;重新锁定单元102，重新锁定待编码的像素块中的每一个以产生第一像素块和第二像素块，第一预测单元108A，使用与编码像素相对应的第一局部解码图像来执行第一像素块的预测，以生成第一预测图像;生成单元，用于生成与第一像素块对应的第二局部解码图像，所述第二局部解码图像使用表示第一像素块和第一预测图像之间的差的第一预测误差，使用第一局部解码图像和第二局部解码图像对第二像素块进行预测以生成第二预测图像的第二预测单元108B，编码单元103-105，用于对第一预测误差进行变换和编码，以及表示第二像素b之间的差的第二预测误差锁定和第二预测图像以产生第一编码数据和第二编码数据，以及多路复用单元111，用于复用第一编码数据和第二编码数据以生成编码比特流。

9. 发明申请

US20110228844A1 MOVING PICTURE ENCODING METHOD AND MOVING PICTURE DECODING METHOD 审中-公开
标题翻译：移动图像编码方法和移动图像解码方法
公开(公告)号：US20110228844A1
公开(公告)日：2011-09-22
申请号：US13151311
申请日：2011-06-02
申请人： Takashi WATANABE , Goki Yasuda , Naofumi Wada , Takeshi Chujoh , Akiyuki Tanizawa
发明人： Takashi WATANABE , Goki Yasuda , Naofumi Wada , Takeshi Chujoh , Akiyuki Tanizawa
IPC分类号： H04N7/26
CPC分类号： H04N19/86 , H04N19/117 , H04N19/147 , H04N19/19 , H04N19/196 , H04N19/463 , H04N19/503 , H04N19/593 , H04N19/82
摘要： According to one embodiment, a moving picture encoding method includes deriving a target filter to be used for a decoded image of a target image to be encoded. The method includes setting a correspondence relationship between target filter coefficient in the target filter and reference filter coefficient in a reference filter in accordance with tap length of the target filter and tap length of the reference filter. The method includes deriving coefficient difference between the target filter coefficient and the reference filter coefficient in accordance with the correspondence relationship. The method includes encoding target filter information including the tap length of the target filter and the coefficient difference.
摘要翻译：根据一个实施例，运动图像编码方法包括导出要用于待编码的目标图像的解码图像的目标滤波器。该方法包括根据目标滤波器的抽头长度和参考滤波器的抽头长度来设置目标滤波器中的目标滤波器系数与参考滤波器中的参考滤波器系数之间的对应关系。该方法包括根据对应关系导出目标滤波器系数与参考滤波器系数之间的系数差。该方法包括对包括目标滤波器的抽头长度和系数差的目标滤波器信息进行编码。

10. 发明授权

US07599437B2 Video encoding/decoding method and apparatus 有权
标题翻译：视频编码/解码方法及装置
公开(公告)号：US07599437B2
公开(公告)日：2009-10-06
申请号：US11685565
申请日：2007-03-13
申请人： Takeshi Chujoh , Shinichiro Koto , Yoshihiro Kikuchi , Akiyuki Tanizawa
发明人： Takeshi Chujoh , Shinichiro Koto , Yoshihiro Kikuchi , Akiyuki Tanizawa
IPC分类号： H04B1/66 , H04N7/12
CPC分类号： H04N19/573 , H04N19/105 , H04N19/107 , H04N19/134 , H04N19/46 , H04N19/61
摘要： A video encoding apparatus comprises a frame memory/predictive image generator having a first predictive mode for generating a predictive image signal by selecting a combination from among a plurality combinations of a reference image number and a plurality of predictive parameters, and a second predictive mode for generating a predictive image signal according to a predictive parameter computed based on reference image numbers of reference images and an image-to-image distance, and a variable-length encoder to select one of the first and second prediction modes by the number of reference images, and encode orthogonal transformation coefficient information concerning a predictive error signal of a predictive image signal with respect to input video signal, mode information indicating an encoding mode, motion vector information and combination of selected reference image number with predictive parameter index information indicating combination of selected reference image information.
摘要翻译：视频编码装置包括：帧存储器/预测图像生成器，具有第一预测模式，用于通过从参考图像编号和多个预测参数的多个组合中选择组合来产生预测图像信号;以及第二预测模式，根据基于参考图像的参考图像数量和图像到图像距离计算的预测参数生成预测图像信号，以及可变长度编码器，通过参考图像的数量来选择第一和第二预测模式中的一个并且编码与预测图像信号相对于输入视频信号的预测误差信号相关的正交变换系数信息，指示编码模式的模式信息，运动矢量信息和所选择的参考图像编号与所选择的组合的预测参数索引信息的组合参考图像信息。

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