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1. 发明申请

US20130136371A1 IMAGE FILTER DEVICE, DECODING APPARATUS, ENCODING APPARATUS, AND DATA STRUCTURE 有权
标题翻译：图像滤波装置，解码装置，编码装置和数据结构
公开(公告)号：US20130136371A1
公开(公告)日：2013-05-30
申请号：US13704169
申请日：2011-06-02
申请人： Tomohiro Ikai , Tomoyuki Yamamoto , Takanori Yamazaki
发明人： Tomohiro Ikai , Tomoyuki Yamamoto , Takanori Yamazaki
IPC分类号： G06T5/00 , G06T9/00
CPC分类号： G06T5/001 , G06T9/004 , H04N19/117 , H04N19/14 , H04N19/17 , H04N19/176 , H04N19/593 , H04N19/70 , H04N19/82
摘要： An adaptive filter includes: an edge direction detection section which discriminates directionality of an input image in each of a plurality of unit regions constituting the input image; a region classification section which classifies the each of the plurality of unit regions into one of a plurality of unit region groups in accordance with to which of a plurality of predetermined groups the directionality of the input image in the each of the plurality of unit regions belongs, the directionality having been discriminated by the edge direction detection section; and a filter process section which calculates a pixel value of the each pixel of an output image by use of a filter coefficient group optimized for a unit region group to which a unit region including the each pixel belongs.
摘要翻译：自适应滤波器包括：边缘方向检测部，其识别构成输入图像的多个单位区域中的每一个中的输入图像的方向性; 区域分类部，根据多个单位区域中的每一个所属的输入图像的方向性，将多个单位区域中的每一个分类为多个单位区域组中的一个，所述方向性被所述边缘方向检测部所区分; 以及滤波处理部，其通过使用针对包括每个像素的单位区域属于的单位区域群优化的滤波器系数组来计算输出图像的每个像素的像素值。

2. 发明申请

US20140140416A1 OFFSET DECODING DEVICE, OFFSET CODING DEVICE, IMAGE FILTERING DEVICE, AND DATA STRUCTURE 有权
标题翻译：偏移解码装置，偏移编码装置，图像滤波装置和数据结构
公开(公告)号：US20140140416A1
公开(公告)日：2014-05-22
申请号：US14127889
申请日：2012-06-22
申请人： Takanori Yamazaki , Tomohiro Ikai , Tomoyuki Yamamoto , Yukinobu Yasugi
发明人： Takanori Yamazaki , Tomohiro Ikai , Tomoyuki Yamamoto , Yukinobu Yasugi
IPC分类号： H04N19/117 , H04N19/44
CPC分类号： H04N19/117 , H04N19/14 , H04N19/182 , H04N19/184 , H04N19/44 , H04N19/463 , H04N19/70 , H04N19/82 , H04N19/96
摘要： An adaptive offset filter (60) adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter (60) refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.
摘要翻译：自适应偏移滤波器（60）对形成输入图像的每个像素的像素值添加偏移。自适应偏移滤波器（60）是指偏移型指定信息，设置输入图像的主体单位区域的偏移属性，对具有与设定的偏移属性中包含的偏移值范围相对应的位宽的位移进行解码，与形成输入图像的每个像素的像素值的偏移。

3. 发明授权

US08995776B2 Image filter device, decoding apparatus, encoding apparatus, and data structure 有权
标题翻译：图像滤波装置，解码装置，编码装置和数据结构
公开(公告)号：US08995776B2
公开(公告)日：2015-03-31
申请号：US13704169
申请日：2011-06-02
申请人： Tomohiro Ikai , Tomoyuki Yamamoto , Takanori Yamazaki
发明人： Tomohiro Ikai , Tomoyuki Yamamoto , Takanori Yamazaki
IPC分类号： G06K9/40 , G06T5/00 , G06T9/00 , H04N19/176 , H04N19/70 , H04N19/593 , H04N19/117 , H04N19/14 , H04N19/17 , H04N19/82
CPC分类号： G06T5/001 , G06T9/004 , H04N19/117 , H04N19/14 , H04N19/17 , H04N19/176 , H04N19/593 , H04N19/70 , H04N19/82
摘要： An adaptive filter includes: an edge direction detection section which discriminates directionality of an input image in each of a plurality of unit regions constituting the input image; a region classification section which classifies the each of the plurality of unit regions into one of a plurality of unit region groups in accordance with to which of a plurality of predetermined groups the directionality of the input image in the each of the plurality of unit regions belongs, the directionality having been discriminated by the edge direction detection section; and a filter process section which calculates a pixel value of the each pixel of an output image by use of a filter coefficient group optimized for a unit region group to which a unit region including the each pixel belongs.
摘要翻译：自适应滤波器包括：边缘方向检测部，其识别构成输入图像的多个单位区域中的每一个中的输入图像的方向性; 区域分类部，根据多个单位区域中的每一个所属的输入图像的方向性，将多个单位区域中的每一个分类为多个单位区域组中的一个，所述方向性被所述边缘方向检测部所区分; 以及滤波处理部，其通过使用针对包括每个像素的单位区域属于的单位区域群优化的滤波器系数组来计算输出图像的每个像素的像素值。

4. 发明授权

US09497455B2 Offset decoding device, offset coding device, image filtering device, and data structure 有权
标题翻译：偏移解码装置，偏移编码装置，图像滤波装置和数据结构
公开(公告)号：US09497455B2
公开(公告)日：2016-11-15
申请号：US14127889
申请日：2012-06-22
申请人： Takanori Yamazaki , Tomohiro Ikai , Tomoyuki Yamamoto , Yukinobu Yasugi
发明人： Takanori Yamazaki , Tomohiro Ikai , Tomoyuki Yamamoto , Yukinobu Yasugi
IPC分类号： H04N19/117 , H04N19/44 , H04N19/70 , H04N19/96 , H04N19/463 , H04N19/14 , H04N19/182 , H04N19/184 , H04N19/82
CPC分类号： H04N19/117 , H04N19/14 , H04N19/182 , H04N19/184 , H04N19/44 , H04N19/463 , H04N19/70 , H04N19/82 , H04N19/96
摘要： An adaptive offset filter (60) adds an offset to the pixel value of each pixel forming an input image. The adaptive offset filter (60) refers to offset-type specifying information, sets offset attributes for a subject unit area of the input image, decodes an offset having a bit width corresponding to an offset value range included in the set offset attributes, and adds the offset to the pixel value of each pixel forming the input image.
摘要翻译：自适应偏移滤波器（60）对形成输入图像的每个像素的像素值添加偏移。自适应偏移滤波器（60）是指偏移型指定信息，设置输入图像的主体单位区域的偏移属性，对具有与设定的偏移属性中包含的偏移值范围相对应的位宽的位移进行解码，与形成输入图像的每个像素的像素值的偏移。

5. 发明授权

US09930331B2 Decoding and encoding devices using intra-frame prediction based on prediction modes of neighbor regions 有权
公开(公告)号：US09930331B2
公开(公告)日：2018-03-27
申请号：US13809272
申请日：2011-07-14
申请人： Tomoyuki Yamamoto , Tomohiro Ikai
发明人： Tomoyuki Yamamoto , Tomohiro Ikai
IPC分类号： H04N7/26 , H04N19/50 , H04N19/196 , H04N19/593 , H04N19/463 , H04N19/44 , H04N19/70 , H04N19/11
CPC分类号： H04N19/196 , H04N19/11 , H04N19/197 , H04N19/44 , H04N19/463 , H04N19/593 , H04N19/70
摘要： A moving image decoder (1) includes an intermediate estimated prediction mode deriving section (124) for transforming a prediction mode of each neighbor partition into an intermediate prediction mode included in an intermediate prediction set which is a sum of prediction sets (PS); and an estimated prediction mode deriving section (125) for deriving an estimated prediction mode by estimating a prediction mode of a target partition based on the intermediate prediction mode of each neighbor partition which is obtained by the transform.

6. 发明申请

US20130114712A1 DECODING DEVICE AND CODING DEVICE 有权
标题翻译：解码设备和编码设备
公开(公告)号：US20130114712A1
公开(公告)日：2013-05-09
申请号：US13809272
申请日：2011-07-14
申请人： Tomoyuki Yamamoto , Tomohiro Ikai
发明人： Tomoyuki Yamamoto , Tomohiro Ikai
IPC分类号： H04N7/26
CPC分类号： H04N19/196 , H04N19/11 , H04N19/197 , H04N19/44 , H04N19/463 , H04N19/593 , H04N19/70
摘要： A moving image decoder (1) includes an intermediate estimated prediction mode deriving section (124) for transforming a prediction mode of each neighbor partition into an intermediate prediction mode included in an intermediate prediction set which is a sum of prediction sets (PS); and an estimated prediction mode deriving section (125) for deriving an estimated prediction mode by estimating a prediction mode of a target partition based on the intermediate prediction mode of each neighbor partition which is obtained by the transform.
摘要翻译：运动图像解码器（1）包括：中间估计预测模式导出部（124），用于将每个相邻分区的预测模式变换成包括在作为预测集合（PS）的和的中间预测集合中的中间预测模式; 以及估计预测模式导出部分，用于通过基于通过变换获得的每个相邻分区的中间预测模式估计目标分区的预测模式来导出估计预测模式。

7. 发明申请

US20120033731A1 VIDEO ENCODING APPARATUS AND VIDEO DECODING APPARATUS 有权
标题翻译：视频编码设备和视频解码设备
公开(公告)号：US20120033731A1
公开(公告)日：2012-02-09
申请号：US13263380
申请日：2010-03-17
申请人： Tomoyuki Yamamoto , Tomohiro Ikai
发明人： Tomoyuki Yamamoto , Tomohiro Ikai
IPC分类号： H04N7/32
CPC分类号： H04N19/00072 , H04N19/109 , H04N19/119 , H04N19/12 , H04N19/122 , H04N19/157 , H04N19/176 , H04N19/463 , H04N19/61
摘要： While maintaining a high degree of freedom in choosing partition sizes and transformation sizes adapted for local characteristics of videos, the amount of metadata is decreased. A video encoding apparatus (10) divides an input video into blocks of a prescribed size and encodes the video block by block. The video encoding apparatus is provided with: a prediction parameter determining portion (102) that decides the block partition structure; a predictive image producing portion (103) that generates predictive images, partition by partition, as prescribed by the partition structure; a transform coefficient producing portion (107) which applies one of the frequency transformations included in a prescribed transformation preset to prediction residuals, i.e. the differences between predictive images and the input video; a transform restriction deriving portion (104) which generates the list of transform candidate, i.e. lists of frequency transformations that can be applied to each partition, on the basis of partition format information; and a variable-length-encoding portion (108) which, on the basis of the list of transform candidate and the transformation preset, performs variable-length encoding on transformation selection flags.
摘要翻译：在选择适应视频的本地特征的分区大小和转换大小的同时，保持高度的自由度，减少元数据量。视频编码装置（10）将输入视频划分成规定尺寸的块，并且对块视频块进行编码。视频编码装置具有：决定块分割结构的预测参数决定部（102）预测图像生成部（103），按照由分割结构规定的分割生成预测图像; 变换系数产生部分（107），其将预定的规定变换中包括的频率变换之一应用于预测残差即预测图像与输入视频之间的差异; 变换限制导出部分（104），其基于分区格式信息生成变换候选列表，即可应用于每个分区的频率变换列表; 以及可变长度编码部分（108），其基于变换候选列表和变换预设，对变换选择标志执行可变长度编码。

8. 发明申请

US20110135006A1 MOVING IMAGE ENCODING DEVICE AND MOVING IMAGE DECODING DEVICE 审中-公开
标题翻译：移动图像编码装置和移动图像解码装置
公开(公告)号：US20110135006A1
公开(公告)日：2011-06-09
申请号：US13057644
申请日：2009-08-06
申请人： Tomoyuki Yamamoto , Tomohiro Ikai
发明人： Tomoyuki Yamamoto , Tomohiro Ikai
IPC分类号： H04N7/12
CPC分类号： H04N19/14 , H04N19/105 , H04N19/139 , H04N19/176 , H04N19/46 , H04N19/51 , H04N19/61
摘要： This invention corrects a motion-compensated image by a method suitable for the local characteristics of the moving image, while preventing an increase in an amount of encoded data. A moving image encoding device of this invention includes three motion-compensated image correcting sections (11, 12, 13) employing respective different correction methods. The moving image encoding device is configured so as to be capable of selecting one of motion-compensated images (109) corrected by the respective correction sections, the selected one of the motion-compensated images (109) being used as a predicted image (106).
摘要翻译：本发明通过适用于运动图像的局部特征的方法校正运动补偿图像，同时防止编码数据量的增加。本发明的运动图像编码装置包括采用各种不同校正方法的三个运动补偿图像校正部分（11,12,13）。运动图像编码装置被配置为能够选择由各个校正部校正的运动补偿图像（109）中的一个，所选择的运动补偿图像（109）被用作预测图像（106））。

9. 发明申请

US20100290532A1 MOVING IMAGE ENCODER AND MOVING IMAGE DECODER 审中-公开
标题翻译：移动图像编码器和移动图像解码器
公开(公告)号：US20100290532A1
公开(公告)日：2010-11-18
申请号：US12810393
申请日：2008-11-19
申请人： Tomoyuki Yamamoto , Tomohiro Ikai
发明人： Tomoyuki Yamamoto , Tomohiro Ikai
IPC分类号： H04N7/32
CPC分类号： H04N19/82 , H04N19/117 , H04N19/136 , H04N19/176 , H04N19/593 , H04N19/61
摘要： A moving image encoder includes a luminance variation detection/compensation section (127). The luminance variation detection/compensation section (127) includes: a reference block surrounding image preparing section (140); a target block surrounding image preparing section (141); a luminance variation compensated image preparing section (142) for compensating for a luminance variation between frames in accordance with a result of comparison between pixels in a reference block surrounding area and those in a target block surrounding area; a luminance variation determining section (144); and a predicted image selecting switch (143). This enables the moving image encoder and a moving image decoder to compensate local luminance variations between frames while minimizing an increase in additional information (side information).
摘要翻译：运动图像编码器包括亮度变化检测/补偿部分（127）。亮度变动检测补偿部（127）包括：周围图像准备部（140）的基准块; 围绕图像准备部（141）的目标块; 用于根据参考块周围区域中的像素与目标块周围区域中的像素之间的比较结果来补偿帧之间的亮度变化的亮度变化补偿图像准备部分（142）亮度变化判定部（144）。和预测图像选择开关（143）。这使得运动图像编码器和运动图像解码器能够补偿帧之间的局部亮度变化，同时最小化附加信息（边信息）的增加。

10. 发明申请

US20130058410A1 ENCODING DEVICE, DECODING DEVICE, AND DATA STRUCTURE 审中-公开
标题翻译：编码设备，解码设备和数据结构
公开(公告)号：US20130058410A1
公开(公告)日：2013-03-07
申请号：US13697247
申请日：2011-04-28
申请人： Yukinobu Yasugi , Tomohiro Ikai , Tomoyuki Yamamoto
发明人： Yukinobu Yasugi , Tomohiro Ikai , Tomoyuki Yamamoto
IPC分类号： H04N7/30 , H04N7/50
CPC分类号： H04N19/44 , H04N19/124 , H04N19/167 , H04N19/176 , H04N19/198 , H04N19/463 , H04N19/65 , H04N19/70 , H04N19/90 , H04N19/91
摘要： A video encoding device includes a side information determination section and a side information encoding section. The side information determination section sets a quantization parameter for each macroblock in such a manner that a difference between quantization parameters for each pair of macroblocks with successive encoding orders is equal to one of n difference values, and transforms the difference into one of n indices with respect to each pair. The side information encoding section generates a binary sequence having a length corresponding to the size of the absolute value of the index. The total of absolute values of the n indices is smaller than the total of absolute values of the n difference values.
摘要翻译：视频编码装置包括侧信息确定部分和侧信息编码部分。侧面信息确定部分以每个宏块的量化参数为单位设置每个宏块的量化参数，其中每个具有连续编码顺序的宏块的量化参数之间的差等于n个差值中的一个，并将该差变换成n个索引中的一个，尊重每一对。侧信息编码部分生成具有与索引的绝对值的大小相对应的长度的二进制序列。 n个索引的绝对值的总和小于n个差值的绝对值的总和。

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