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1. 发明授权

US08144776B2 Direct mode video coding using variable selection criterion 有权
标题翻译：使用变量选择标准的直接模式视频编码
公开(公告)号：US08144776B2
公开(公告)日：2012-03-27
申请号：US11460260
申请日：2006-07-27
申请人： Akihiro Yamori , Akira Nakagawa , Kiyoshi Sakai
发明人： Akihiro Yamori , Akira Nakagawa , Kiyoshi Sakai
IPC分类号： H04N7/12
CPC分类号： H04N19/157 , H04N19/109 , H04N19/176 , H04N19/52 , H04N19/61
摘要： The present invention provides a video coding method which includes, as one of a plurality of coding modes, a direct mode generating a piece of motion information of each of Macro Blocks, which are obtained by dividing a first picture, by predicting from motion information of a coded Macro Block of other plurality of second pictures, including: a first step for selecting the direct mode as the coding mode by using a variable selection criterion; and a second step for coding the Macro Blocks based on the selected coding mode.
摘要翻译：本发明提供一种视频编码方法，其包括作为多个编码模式之一的直接模式，通过从第一图像的运动信息预测生成通过划分第一图像获得的每个宏块的运动信息，其它多个第二图像的编码宏块，包括：通过使用变量选择准则来选择直接模式作为编码模式的第一步骤; 以及用于基于所选择的编码模式对宏块进行编码的第二步骤。

2. 发明申请

US20070217510A1 VIDEO CODING METHOD, VIDEO CODING APPARATUS AND VIDEO CODING PROGRAM 有权
标题翻译：视频编码方法，视频编码设备和视频编码程序
公开(公告)号：US20070217510A1
公开(公告)日：2007-09-20
申请号：US11460260
申请日：2006-07-27
申请人： Akihiro Yamori , Akira Nakagawa , Kiyoshi Sakai
发明人： Akihiro Yamori , Akira Nakagawa , Kiyoshi Sakai
IPC分类号： H04N7/12 , H04N11/04
CPC分类号： H04N19/157 , H04N19/109 , H04N19/176 , H04N19/52 , H04N19/61
摘要： The present invention provides a video coding method which includes, as one of a plurality of coding modes, a direct mode generating a piece of motion information of each of Macro Blocks, which are obtained by dividing a first picture, by predicting from motion information of a coded Macro Block of other plurality of second pictures, including: a first step for selecting the direct mode as the coding mode by using a variable selection criterion; and a second step for coding the Macro Blocks based on the selected coding mode.
摘要翻译：本发明提供一种视频编码方法，其包括作为多个编码模式之一的直接模式，通过从第一图像的运动信息预测生成通过划分第一图像获得的每个宏块的运动信息，其它多个第二图像的编码宏块，包括：通过使用变量选择准则来选择直接模式作为编码模式的第一步骤; 以及用于基于所选择的编码模式对宏块进行编码的第二步骤。

3. 发明授权

US09167254B2 Video encoding method and apparatus, and video decoding apparatus 有权
标题翻译：视频编码方法和装置以及视频解码装置
公开(公告)号：US09167254B2
公开(公告)日：2015-10-20
申请号：US12559978
申请日：2009-09-15
申请人： Akihiro Yamori , Kiyoshi Sakai
发明人： Akihiro Yamori , Kiyoshi Sakai
IPC分类号： H04N7/32 , H04N7/26 , H04N11/02 , H04N19/136 , H04N19/139 , H04N19/176 , H04N19/124 , H04N19/61 , H04N19/00
CPC分类号： H04N19/176 , H04N19/00 , H04N19/119 , H04N19/124 , H04N19/136 , H04N19/139 , H04N19/14 , H04N19/157 , H04N19/44 , H04N19/51 , H04N19/547 , H04N19/60 , H04N19/61
摘要： To allow a finer quantization control according to the property of an image within a macroblock, quantization parameter values are allowed to be changed in units of sub-blocks equal to or smaller than the macroblock in a similar manner as in motion compensation and orthogonal transform processes. A finer-tuned quantization control is performed, for example, by selecting fine and coarse quantization parameters respectively for corresponding sub-blocks if a plurality of images having different properties coexist within the macroblock.
摘要翻译：为了根据宏块内的图像的属性进行更精细的量化控制，允许以与运动补偿和正交变换处理相似的方式以等于或小于宏块的子块为单位改变量化参数值。例如，如果具有不同性质的多个图像在宏块内共存，则分别对相应的子块选择精细和粗略的量化参数来执行更精细的量化控制。

4. 发明申请

US20130128976A1 METHOD OF CODING MOVING IMAGE AND METHOD OF DECODING MOVING IMAGE 有权
标题翻译：编码移动图像的方法和解码移动图像的方法
公开(公告)号：US20130128976A1
公开(公告)日：2013-05-23
申请号：US13602415
申请日：2012-09-04
申请人： Junpei Koyama , Akihiro Yamori , Kimihiko Kazui , Satoshi Shimada , Akira Nakagawa
发明人： Junpei Koyama , Akihiro Yamori , Kimihiko Kazui , Satoshi Shimada , Akira Nakagawa
IPC分类号： H04N7/32
CPC分类号： H04N19/16 , H04N19/107 , H04N19/112 , H04N19/513
摘要： A method includes extracting a first vector used to code a specific block belonging to a coded field picture arranged chronologically adjacent to a field picture to be coded and to a block to be coded, generating a second vector by scaling the first vector based on a temporal distance between the field picture and a second picture specified by a reference index and referenced for the block and included in the field picture and a temporal distance between a first picture pointed by the first vector and the coded field picture arranged chronologically adjacent to the field picture, and correcting the second vector based on a parity of the field picture, a parity of the first picture, a parity of the second picture and a parity of the coded field picture and forming the corrected second vector.
摘要翻译：一种方法包括提取用于对属于按时间顺序排列的编码场图像编码的第一矢量编码与要编码的场图像相邻的块，并且生成第二矢量，通过基于时间场图像之间的距离和由参考索引指定并被参考并包括在场图像中的第二图像之间的距离以及由第一矢量指向的第一图像与按时间顺序与场图像排列相邻的编码场图像之间的时间距离并且基于场图像的奇偶校验，第一图像的奇偶校验，第二图像的奇偶校验和编码的场图像的奇偶校验来校正第二矢量，并且形成校正的第二矢量。

5. 发明授权

US5576958A Function transform apparatus 失效
标题翻译：功能变换装置
公开(公告)号：US5576958A
公开(公告)日：1996-11-19
申请号：US403057
申请日：1995-03-13
申请人： Yasuhiro Kawakatsu , Akihiro Yamori , Kiichi Matsuda , Akira Nakagawa
发明人： Yasuhiro Kawakatsu , Akihiro Yamori , Kiichi Matsuda , Akira Nakagawa
IPC分类号： H04N19/60 , G06F17/14 , H04N1/41 , H04N19/102 , H04N19/134 , H04N19/136 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/189 , H04N19/196 , H04N19/423 , H04N19/44 , H04N19/625 , H04N19/93
CPC分类号： G06F17/147
摘要： Frequently occurring DCT coefficients F(u, v) are predictable. Accordingly, values f.sub.u,v,F,(u,v) (x, y) for the frequently occurring DCT coefficients are calculated and stored, in advance, in a table. Among input DCT coefficients F(u, v), only non-zero DCT coefficients are processed. It is determined whether or not the table contains values f.sub.u,v,F(u,v) (x, y) for a given non-zero DCT coefficient. If the table contains the values, they are read out of the table, and if not, they are directly calculated. The read or calculated values are added to pixels (x, y), respectively, to provide pixel values (x, y).
摘要翻译：经常出现的DCT系数F（u，v）是可预测的。因此，计算出频繁出现的DCT系数的值fu，v，F，（u，v）（x，y），并预先存储在表中。在输入DCT系数F（u，v）中，只处理非零DCT系数。对于给定的非零DCT系数，确定表是否包含值fu，v，F（u，v）（x，y）。如果表中包含值，则从表中读出它们，如果不是，则直接计算它们。读取或计算的值分别添加到像素（x，y），以提供像素值（x，y）。

6. 发明申请

US20100303370A1 VIDEO DECODING DEVICE AND VIDEO DECODING METHOD 有权
标题翻译：视频解码设备和视频解码方法
公开(公告)号：US20100303370A1
公开(公告)日：2010-12-02
申请号：US12782975
申请日：2010-05-19
申请人： Akihiro Yamori , Akira Nakagawa
发明人： Akihiro Yamori , Akira Nakagawa
IPC分类号： H04N7/26 , H04N5/91
CPC分类号： H04N19/105 , H04N5/144 , H04N19/139 , H04N19/176 , H04N19/513 , H04N19/577 , H04N19/895
摘要： A video decoding device includes a decoder configured to decode a plurality of separate partial areas of each of pictures included in encoded video data and a motion vector indicating a positional relationship between each of the partial areas and a partial area of a different picture referenced in order to encode the partial area; an error detector configured to detect, as an error area, a partial area that is unable to be decoded by the decoder from among the plurality of partial areas; a referenced area determiner configured to determine a referenced area of a third picture that has already been decoded, the referenced area corresponding to the error area; a concealment unit configured to conceal the error area using data included in the referenced area; and an image integrator configured to reproduce the first picture.
摘要翻译：视频解码装置包括解码器，其被配置为对包含在编码视频数据中的每个图像的多个分开的部分区域进行解码，以及指示每个部分区域之间的位置关系的运动矢量和按顺序引用的不同图像的部分区域编码部分区域; 错误检测器，被配置为从所述多个部分区域中检测所述解码器不能被解码的部分区域作为错误区域; 参考区域确定器，被配置为确定已经被解码的第三图像的参考区域，所述参考区域对应于所述错误区域; 隐藏单元，被配置为使用包括在所述参考区域中的数据来隐藏所述错误区域; 以及被配置为再现第一图像的图像积分器。

7. 发明授权

US07453941B1 Moving pictures encoding method and apparatus for detecting a scene change between fields of an interlaced image 失效
标题翻译：用于检测交错图像的场之间的场景变化的运动图像编码方法和装置
公开(公告)号：US07453941B1
公开(公告)日：2008-11-18
申请号：US09526619
申请日：2000-03-16
申请人： Akihiro Yamori , Takashi Hamano , Kiyoshi Sakai , Kouji Yamada
发明人： Akihiro Yamori , Takashi Hamano , Kiyoshi Sakai , Kouji Yamada
IPC分类号： H04N7/12
CPC分类号： H04N19/577 , H04N19/105 , H04N19/142 , H04N19/16 , H04N19/176 , H04N19/179 , H04N19/87
摘要： An encoding method, which achieves encoding efficiency, and good picture quality encoding even when there exists a picture in which a scene change occurs within an interlaced frame, is provided. A moving pictures encoding method treats a frame of interlaced image input signals as a picture, and performs prediction and encoding for this picture in macro-block units from a picture of both a forward picture, which is temporally in the past, and a backward picture, which is in the future. When performing encoding in accordance with the above-mentioned bi-directional picture, the method performs inter-field motion prediction, which treats as a unit a field, which divides each picture in macro-blocks into either odd numbers or even numbers of pixel scanning lines of this frame, and as a prediction mode, selectively switches in picture units between using prediction from a forward field motion vector for one field, and using prediction from a backward field motion vector for the other field, generates a predictive picture corresponding to the selected prediction mode, and encodes the input signal using the generated predictive picture.
摘要翻译：提供了即使存在在交错帧内发生场景变化的图像的情况下也能够实现编码效率的编码方式和良好的图像质量编码。运动图像编码方法将隔行扫描图像输入信号的帧作为图像进行处理，并且从宏块单位对来自时间上过去的前向图像的图像和后向图像进行该图像的预测编码，这是将来。当根据上述双向图像执行编码时，该方法执行场间运动预测，其将单元视为将宏块中的每个图像划分为奇数或偶数像素扫描的场该帧的行，并且作为预测模式，在使用来自一场的前向场运动矢量的预测和使用来自用于另一场的后场运动矢量的预测之间选择性地切换图像单位，生成对应于并且使用所生成的预测图像对输入信号进行编码。

8. 发明授权

US06816617B2 Motion vector searcher and motion vector search method as well as moving picture coding apparatus 失效
标题翻译：运动矢量搜索器和运动矢量搜索方法以及运动图像编码装置
公开(公告)号：US06816617B2
公开(公告)日：2004-11-09
申请号：US09737488
申请日：2000-12-18
申请人： Akihiro Yamori , Kiyoshi Sakai
发明人： Akihiro Yamori , Kiyoshi Sakai
IPC分类号： G06K900
CPC分类号： H04N19/51 , G06T7/223 , H04N19/567
摘要： The invention provides a motion vector searcher which includes an inter-block difference arithmetic operation section for calculating and outputting difference amounts between an original image MB and a plurality of search MBs, an additional amount arithmetic operation section for outputting a correction difference amount obtained by adding an additional amount, which relies upon a horizontal component and a vertical component of each of the motion vectors and a state of coding, to each of the difference amounts and for outputting a motion vector based on the motion vector, and a motion vector determination section for determining an optimum motion vector which exhibits the highest one of correlation degrees between the original image MB and the search MBs. With this arrangement, reduction of the information amount of motion vectors is achieved when the compression ratio is high and the transmission rate is low.
摘要翻译：本发明提供了一种运动矢量搜索器，其包括用于计算并输出原始图像MB和多个搜索MB之间的差值的块间差分算术运算部分，附加量算术运算部分，用于输出通过添加获得的校正差分量依赖于每个运动矢量的水平分量和垂直分量以及编码的状态的附加量，以及基于运动矢量输出的运动矢量，以及运动矢量确定部分用于确定呈现原始图像MB和搜索MB之间的最高相关度的最佳运动矢量。利用这种布置，当压缩比高并且传输速率低时，实现运动矢量的信息量的减少。

9. 发明授权

US09094683B2 Method of coding moving image and method of decoding moving image 有权
标题翻译：编码运动图像的方法和解码运动图像的方法
公开(公告)号：US09094683B2
公开(公告)日：2015-07-28
申请号：US13602415
申请日：2012-09-04
申请人： Junpei Koyama , Akihiro Yamori , Kimihiko Kazui , Satoshi Shimada , Akira Nakagawa
发明人： Junpei Koyama , Akihiro Yamori , Kimihiko Kazui , Satoshi Shimada , Akira Nakagawa
IPC分类号： H04N19/00 , H04N19/16 , H04N19/513 , H04N19/107 , H04N19/112
CPC分类号： H04N19/16 , H04N19/107 , H04N19/112 , H04N19/513
摘要： A method includes extracting a first vector used to code a specific block belonging to a coded field picture arranged chronologically adjacent to a field picture to be coded and to a block to be coded, generating a second vector by scaling the first vector based on a temporal distance between the field picture and a second picture specified by a reference index and referenced for the block and included in the field picture and a temporal distance between a first picture pointed by the first vector and the coded field picture arranged chronologically adjacent to the field picture, and correcting the second vector based on a parity of the field picture, a parity of the first picture, a parity of the second picture and a parity of the coded field picture and forming the corrected second vector.
摘要翻译：一种方法包括提取用于对属于按时间顺序排列的编码场图像编码的第一矢量编码与要编码的场图像相邻的块，并且生成第二矢量，通过基于时间场图像之间的距离和由参考索引指定并被参考并包括在场图像中的第二图像之间的距离以及由第一矢量指向的第一图像与按时间顺序与场图像排列相邻的编码场图像之间的时间距离并且基于场图像的奇偶校验，第一图像的奇偶校验，第二图像的奇偶校验和编码的场图像的奇偶校验来校正第二矢量，并且形成校正的第二矢量。

10. 发明申请

US20090190655A1 MOVING PICTURE ENCODING APPARATUS 有权
标题翻译：移动图像编码设备
公开(公告)号：US20090190655A1
公开(公告)日：2009-07-30
申请号：US12407924
申请日：2009-03-20
申请人： Satoshi Shimada , Akira Nakagawa , Akihiro Yamori , Noriaki Tsukuda
发明人： Satoshi Shimada , Akira Nakagawa , Akihiro Yamori , Noriaki Tsukuda
IPC分类号： H04N7/12
CPC分类号： H04N19/577 , H04N19/107 , H04N19/132 , H04N19/14 , H04N19/149 , H04N19/156 , H04N19/164 , H04N19/176 , H04N19/51 , H04N19/61
摘要： An encoding circuit (1) encodes an input image. A thinning-out decision unit (2) determines whether or not a picture needs to be thinned out. A dummy picture storage device (4) stores a dummy picture. A dummy picture is encoded data in which all the blocks refer to the same picture, motion vectors of all the blocks are zero, and none of the blocks has prediction residual information. A reference picture selection unit (5) selects a reference picture from among a plurality of referenceable pictures. A header generating unit (7) generates a header to be added to a dummy picture. In the header, the selected reference picture is assigned to an index specifying a reference picture for the dummy picture.
摘要翻译：编码电路（1）对输入图像进行编码。稀疏决策单元（2）确定图片是否需要被稀疏。虚拟图像存储装置（4）存储虚拟图像。伪图像是其中所有块参考相同图像的编码数据，所有块的运动矢量为零，并且没有块具有预测残差信息。参考图像选择单元（5）从多个可参照图像中选择参考图像。标题生成单元（7）生成要添加到虚拟画面的标题。在标题中，将所选择的参考图像分配给指定伪图像的参考图像的索引。

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