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1. 发明申请

US20120002022A1 IMAGE CODING APPARATUS, IMAGE CODING METHOD, PROGRAM, AND INTEGRATED CIRCUIT 审中-公开
标题翻译：图像编码设备，图像编码方法，程序和集成电路
公开(公告)号：US20120002022A1
公开(公告)日：2012-01-05
申请号：US13175348
申请日：2011-07-01
申请人： Hideyuki Ohgose , Katsuki Urano , Kiyofumi Abe , Hiroshi Arakawa , Yuki Maruyama , Yuki Kobayashi
发明人： Hideyuki Ohgose , Katsuki Urano , Kiyofumi Abe , Hiroshi Arakawa , Yuki Maruyama , Yuki Kobayashi
IPC分类号： H04N13/00
CPC分类号： H04N9/8227 , H04N13/189 , H04N19/105 , H04N19/107 , H04N19/137 , H04N19/196 , H04N19/597 , H04N2013/0081
摘要： An image coding apparatus records stereoscopic video partially as 2D video so as to enable display to be performed while seamlessly switching between 3D video and 2D video, and includes: a control unit that sets one of a 2D coding mode and a 3D coding mode which are modes of coding the stereoscopic video so that, when displayed in 3D, the stereoscopic video is displayed as 2D video and 3D video respectively; and a coding unit that, in the case where the control unit switches from the 3D coding mode to the 2D coding mode, codes the to stereoscopic video according to a 3D coding standard in the 3D coding mode, and codes the stereoscopic video according to the 3D coding standard using a coding condition in the 2D coding mode, the coding condition being a condition for causing the stereoscopic video to be viewed as the 2D video when displayed.
摘要翻译：图像编码装置将立体视频部分地记录为2D视频，以便能够在3D视频和2D视频之间无缝切换的同时执行显示，并且包括：控制单元，其设置2D编码模式和3D编码模式之一对立体视频进行编码的模式，使得当以3D显示时，立体视频分别被显示为2D视频和3D视频; 以及编码单元，在所述控制单元从3D编码模式切换到2D编码模式的情况下，根据3D编码模式中的3D编码标准对立体视频进行编码，并根据 3D编码标准，使用2D编码模式中的编码条件，编码条件是当立体视频被显示时被视为2D视频的条件。

2. 发明申请

US20100202513A1 VIDEO SIGNAL CODING APPARATUS AND VIDEO SIGNAL CODING METHOD 有权
标题翻译：视频信号编码设备和视频信号编码方法
公开(公告)号：US20100202513A1
公开(公告)日：2010-08-12
申请号：US12700048
申请日：2010-02-04
申请人： Hiroshi Arakawa , Yuki Maruyama , Hideyuki Ohgose , Kiyofumi Abe
发明人： Hiroshi Arakawa , Yuki Maruyama , Hideyuki Ohgose , Kiyofumi Abe
IPC分类号： H04N7/26
CPC分类号： H04N19/186 , H04N19/126 , H04N19/15 , H04N19/172 , H04N19/61
摘要： Video signal coding apparatus includes: a quantization unit which quantizes, using coefficient values in a first quantization matrix, a luminance signal of each of a first picture and a second picture coded after the first picture, and quantizes, using coefficient values in a second quantization matrix, a chrominance signal of each of the first picture and the second picture; a code amount obtainment unit which obtains a luminance code amount and a chrominance code amount of each of the first picture and the second picture; a rate calculation unit which calculates a rate of the chrominance code amount with respect to the luminance code amount for each of the first picture and the second picture, obtained by the code amount obtainment unit; and a rate control unit which changes a coefficient value of at least one of the first matrix and the second matrix used in quantizing the second picture, before the quantization unit quantizes the second picture, so that the rate for the second picture becomes smaller than the rate for the first picture.
摘要翻译：视频信号编码装置包括：量化单元，其使用第一量化矩阵中的系数值量化在第一图像之后编码的第一图像和第二图像中的每一个的亮度信号，并且使用第二量化中的系数值进行量化矩阵，第一图像和第二图像中的每一个的色度信号; 代码量获取单元，其获得第一图像和第二图像中的每一个的亮度代码量和色度代码量; 速率计算单元，其通过代码量获取单元获得的第一图像和第二图像的亮度代码量的色度代码量的比率; 以及速率控制单元，其在量化单元对第二图像进行量化之前改变在量化第二图像中使用的第一矩阵和第二矩阵中的至少一个的系数值，使得第二图像的比率变得小于率为第一张照片。

3. 发明授权

US09369720B2 Image coding apparatus and image coding method 有权
标题翻译：图像编码装置和图像编码方法
公开(公告)号：US09369720B2
公开(公告)日：2016-06-14
申请号：US13148111
申请日：2010-12-28
申请人： Hideyuki Ohgose , Katsuki Urano , Kiyofumi Abe , Hiroshi Arakawa , Yuki Maruyama
发明人： Hideyuki Ohgose , Katsuki Urano , Kiyofumi Abe , Hiroshi Arakawa , Yuki Maruyama
IPC分类号： H04N7/32 , H04N19/152 , H04N19/176 , H04N19/119 , H04N19/11 , H04N19/14
CPC分类号： H04N19/152 , H04N19/11 , H04N19/119 , H04N19/14 , H04N19/176
摘要： An image coding apparatus and an image coding method allow selecting, according to an image in a macroblock to be coded, a most appropriate intra prediction mode for controlling the amount of generated code. The image coding apparatus includes a block feature quantity calculator which calculates, based on pixel values of pixels in the current macroblock in an input image, statistical information of each of the pixel values; and an intra-prediction block size determiner which determines, based on the calculated statistical information, an intra-prediction block size according to a predetermined reference such that a larger intra-prediction block size is more likely to be selected when a degree of change in the pixel value corresponding to a predetermined direction in the current macroblock is smaller. A encoder which performs intra-prediction coding on the current macroblock, in units of the intra-prediction block having the determined size.
摘要翻译：图像编码装置和图像编码方法允许根据要编码的宏块中的图像来选择用于控制生成代码量的最适合的帧内预测模式。图像编码装置包括块特征量计算器，其基于输入图像中的当前宏块中的像素的像素值计算每个像素值的统计信息; 以及内部预测块尺寸确定器，其基于所计算的统计信息，根据预定参考确定内部预测块大小，使得当更改内部预测块大小的变化程度时，更可能选择更大的帧内预测块大小与当前宏块中的预定方向对应的像素值较小。以具有所确定的大小的帧内预测块为单位对当前宏块执行帧内预测编码的编码器。

4. 发明授权

US08654839B2 Video signal coding apparatus and video signal coding method 有权
标题翻译：视频信号编码装置和视频信号编码方法
公开(公告)号：US08654839B2
公开(公告)日：2014-02-18
申请号：US12700048
申请日：2010-02-04
申请人： Hiroshi Arakawa , Yuki Maruyama , Hideyuki Ohgose , Kiyofumi Abe
发明人： Hiroshi Arakawa , Yuki Maruyama , Hideyuki Ohgose , Kiyofumi Abe
IPC分类号： H04N7/12
CPC分类号： H04N19/186 , H04N19/126 , H04N19/15 , H04N19/172 , H04N19/61
摘要： Video signal coding apparatus includes a quantization unit which quantizes a luminance signal of each of a first picture and a second picture coded after the first picture, and quantizes a chrominance signal of each of the first picture and the second picture. A code amount obtainment unit obtains a luminance code amount and a chrominance code amount of each of the first picture and the second picture; and a rate calculation unit calculates a rate of the chrominance code amount with respect to the luminance code amount for each of the first picture and the second picture. A rate control unit changes a coefficient value of at least one of the first matrix and the second matrix used in quantizing the second picture, before the quantization unit quantizes the second picture, so that the rate for the second picture becomes smaller than the rate for the first picture.
摘要翻译：视频信号编码装置包括量化第一图像和第一图像之后编码的第二图像的亮度信号的量化单元，并对第一图像和第二图像中的每一个的色度信号进行量化。代码量获取单元获得第一图像和第二图像中的每一个的亮度代码量和色度代码量; 并且速率计算单元计算相对于第一图像和第二图像中的每一个的亮度代码量的色度代码量的比率。速率控制单元在量化单元对第二图像进行量化之前改变在量化第二图像中使用的第一矩阵和第二矩阵中的至少一个的系数值，使得第二图像的比率变得小于第一张图片。

5. 发明申请

US20110292998A1 IMAGE CODING APPARATUS AND IMAGE CODING METHOD 有权
标题翻译：图像编码装置和图像编码方法
公开(公告)号：US20110292998A1
公开(公告)日：2011-12-01
申请号：US13148111
申请日：2010-12-28
申请人： Hideyuki Ohgose , Katsuki Urano , Kiyofumi Abe , Hiroshi Arakawa , Yuki Maruyama
发明人： Hideyuki Ohgose , Katsuki Urano , Kiyofumi Abe , Hiroshi Arakawa , Yuki Maruyama
IPC分类号： H04N7/32
CPC分类号： H04N19/152 , H04N19/11 , H04N19/119 , H04N19/14 , H04N19/176
摘要： To provide an image coding apparatus and an image coding method that allow selecting, according to an image in a macroblock to be coded, a most appropriate intra prediction mode for controlling the amount of generated code.The image coding apparatus includes: a block feature quantity calculating unit (102) which calculates, based on pixel values of pixels in the current macroblock in an input image, statistical information of each of the pixel values; an intra-prediction block size determining unit (103) which determines, based on the calculated statistical information, an intra-prediction block size according to a predetermined reference such that a larger intra-prediction block size is more likely to be selected when a degree of change in the pixel value corresponding to a predetermined direction in the current macroblock is smaller; and a coding unit (105) which performs intra-prediction coding on the current macroblock, in units of the intra-prediction block having the determined size.
摘要翻译：为了提供图像编码装置和图像编码方法，其能够根据要编码的宏块中的图像来选择用于控制生成代码量的最合适的帧内预测模式。图像编码装置包括：块特征量计算单元，其基于输入图像中的当前宏块中的像素的像素值计算每个像素值的统计信息; 根据计算出的统计信息，根据规定的基准来确定内部预测块的大小，使得较大的帧内预测块的大小更可能被选择的帧内预测块大小决定部（103）对应于当前宏块中的预定方向的像素值的变化较小; 以及以具有确定尺寸的帧内预测块为单位对当前宏块执行帧内预测编码的编码单元（105）。

6. 发明申请

US20110274163A1 VIDEO CODING APPARATUS AND VIDEO CODING METHOD 审中-公开
标题翻译：视频编码设备和视频编码方法
公开(公告)号：US20110274163A1
公开(公告)日：2011-11-10
申请号：US13093880
申请日：2011-04-26
申请人： Kiyofumi ABE , Youji Shibahara , Koji Arimura , Hideyuki Ohgose , Yuki Maruyama
发明人： Kiyofumi ABE , Youji Shibahara , Koji Arimura , Hideyuki Ohgose , Yuki Maruyama
IPC分类号： H04N7/26
CPC分类号： H04N19/137 , H04N19/112 , H04N19/124 , H04N19/172 , H04N19/176
摘要： A video coding apparatus includes: a change amount detection unit that detects, based on pixel data included in a target block to be coded, an amount of change indicating a displacement between a top field and a bottom field caused by a difference in image capture time between the top field and the bottom field which are consecutive; a quantization width determination unit that determines, as a quantization width used for the target block, a first quantization width when the amount of change is a first value, and a second quantization width when the amount of change is a second value that is larger than the first value, the second quantization width being smaller than the first quantization width; and a quantization unit that quantizes the target block using the quantization width determined by the quantization width determination unit.
摘要翻译：视频编码装置包括：变化量检测单元，根据包含在要编码的目标块中的像素数据，检测表示由图像捕获时间差引起的顶场和底场之间的位移的变化量在顶场和底场之间是连续的; 量化宽度确定单元，当所述变化量为第一值时，将用作所述目标块的量化宽度确定为第一量化宽度，以及当所述变化量是大于所述第二值时的第二量化宽度所述第一值，所述第二量化宽度小于所述第一量化宽度; 以及使用由量化宽度确定单元确定的量化宽度来量化目标块的量化单元。

7. 发明授权

US08045821B2 Coding method conversion apparatus 有权
标题翻译：编码方法转换装置
公开(公告)号：US08045821B2
公开(公告)日：2011-10-25
申请号：US12031061
申请日：2008-02-14
申请人： Kei Tasaka , Tatsuro Juri , Katsuo Saigo , Hideyuki Ohgose , Koji Arimura , Hiroshi Arakawa , Yuki Maruyama
发明人： Kei Tasaka , Tatsuro Juri , Katsuo Saigo , Hideyuki Ohgose , Koji Arimura , Hiroshi Arakawa , Yuki Maruyama
IPC分类号： G06K9/36 , G06K9/46 , G06K9/40
CPC分类号： H04N19/86 , H04N19/117 , H04N19/134 , H04N19/139 , H04N19/146 , H04N19/159 , H04N19/172 , H04N19/174 , H04N19/176 , H04N19/46 , H04N19/61 , H04N19/80
摘要： A coding method conversion apparatus converts the first coded data coded by the first coding method into the second coded data. The coding method conversion apparatus includes: an H.264 decoder which decodes the first coded data; a deblocking filter strength calculation unit which calculates a filter strength of deblocking filtering of a second coding method, using at least one piece of decoding information except a coding type of the first coded data, the decoding information being obtained by decoding the first coded data; and a deblocking filter which performs the deblocking filtering to reduce noise in a boundary of blocks according to the filter strength calculated by the deblocking filter strength calculation unit.
摘要翻译：编码方法转换装置将通过第一编码方法编码的第一编码数据转换为第二编码数据。编码方法转换装置包括：解码第一编码数据的H.264解码器; 去块滤波强度计算单元，使用除了第一编码数据的编码类型之外的至少一条解码信息，计算第二编码方法的去块滤波的滤波强度，解码信息是通过解码第一编码数据而获得的; 以及去块滤波器，其执行去块滤波以根据由去块滤波器强度计算单元计算的滤波强度来减小块边界中的噪声。

8. 发明申请

US20090245350A1 IMAGE CODING APPARATUS AND IMAGE CODING METHOD 审中-公开
标题翻译：图像编码装置和图像编码方法
公开(公告)号：US20090245350A1
公开(公告)日：2009-10-01
申请号：US12301528
申请日：2007-06-14
申请人： Yuki Maruyama , Hiroshi Arakawa , Hideyuki Ohgose , Takahiro Nishi
发明人： Yuki Maruyama , Hiroshi Arakawa , Hideyuki Ohgose , Takahiro Nishi
IPC分类号： H04N7/26 , H04N11/04
CPC分类号： H04N19/132 , H04N19/15 , H04N19/176
摘要： To provide an image coding apparatus and an image coding method for reliably suppressing delays in image coding processing while suppressing increases in circuit size. An image coding apparatus (100) includes: an image coding unit (101) which generates a coded picture by sequentially coding a plurality of input pictures; a skipped picture generation unit (104) which generates a skipped picture; an entropy coding unit (102) which performs entropy coding on the coded picture and the skipped picture; and a coding control unit (103) which determines whether or not entropy coding has generated a coded picture including a macroblock having a code amount exceeding a threshold value, and which causes the skipped picture generation unit (104) to generate a skipped picture based on a specific picture that is one of the plurality of input pictures that corresponds to the coded picture, without causing the image coding unit (101) to perform coding.
摘要翻译：提供一种图像编码装置和图像编码方法，用于在抑制电路尺寸的增加的同时可靠地抑制图像编码处理中的延迟。一种图像编码装置（100）包括：图像编码单元（101），通过对多个输入图像进行顺序编码来生成编码图像; 跳过图像生成单元，生成跳过图像; 熵编码单元，对编码图像和跳过图像进行熵编码; 以及编码控制单元，其确定熵编码是否已经生成包括具有超过阈值的代码量的宏块的编码图像，并且使得跳过的图像生成单元（104）基于作为与编码图像对应的多个输入图像之一的特定图像，而不使图像编码单元（101）进行编码。

9. 发明申请

US20090010322A1 PICTURE CODING APPARATUS 失效
标题翻译：图像编码设备
公开(公告)号：US20090010322A1
公开(公告)日：2009-01-08
申请号：US11947087
申请日：2007-11-29
申请人： Tatsuro Juri , Hiroshi Arakawa , Katsuo Saigo , Hideyuki Ohgose , Koji Arimura , Kei Tasaka , Yuki Maruyama
发明人： Tatsuro Juri , Hiroshi Arakawa , Katsuo Saigo , Hideyuki Ohgose , Koji Arimura , Kei Tasaka , Yuki Maruyama
IPC分类号： H04N7/26
CPC分类号： H04N19/43 , H04N19/107 , H04N19/124 , H04N19/152 , H04N19/154 , H04N19/172 , H04N19/423 , H04N19/61
摘要： The picture coding apparatus, which optimizes data amount of coded picture data without entailing an increase in circuit size and/or power consumption, includes: a picture input unit which obtains a moving picture signal Vin; a buffer; a lead detecting unit which detects a lead portion from the moving picture represented by the moving picture signal Vin; a coding unit which codes the moving picture signal Vin in the lead portion detected by the lead detecting unit, according to a coding condition for temporary coding; and a coding condition generating unit which generates a coding condition for actual coding, based on the result of the coding by the coding unit and the coding condition for temporary coding. Then, coding unit codes the moving picture signal Vin representing the moving picture including the aforementioned lead portion, according to the coding condition for actual coding.
摘要翻译：图像编码装置优化编码图像数据的数据量而不增加电路尺寸和/或功耗，包括：图像输入单元，其获得运动图像信号Vin; 一个缓冲区引导检测单元，其从由运动图像信号Vin表示的运动图像检测引导部分; 编码单元，根据用于临时编码的编码条件，对由引导检测单元检测到的引导部分中的运动图像信号Vin进行编码; 以及编码条件生成单元，其基于编码单元的编码结果和临时编码的编码条件，生成实际编码的编码条件。然后，根据实际编码的编码条件，编码单元对表示包括上述引导部分的运动图像的运动图像信号Vin进行编码。

10. 发明申请

US20080152012A1 DEVICE AND METHOD FOR CODING MOVING PICTURES 审中-公开
标题翻译：编码移动图像的装置和方法
公开(公告)号：US20080152012A1
公开(公告)日：2008-06-26
申请号：US11959707
申请日：2007-12-19
申请人： Hideyuki OHGOSE , Tatsuro Juri , Hiroshi Arakawa , Katsuo Saigo , Koji Arimura , Yuki Maruyama , Kei Tasaka
发明人： Hideyuki OHGOSE , Tatsuro Juri , Hiroshi Arakawa , Katsuo Saigo , Koji Arimura , Yuki Maruyama , Kei Tasaka
IPC分类号： H04N7/26
CPC分类号： H04N19/103 , H04N19/114 , H04N19/137 , H04N19/172 , H04N19/40
摘要： Provided is a moving picture coding device and a moving picture coding method used by the device, which can prevent a search range of reference pictures from being unnecessarily extended when the first coding method is converted into the second coding method. The moving picture coding device codes moving pictures and includes: a decoding unit operable to decode picture data coded by the first coding method; a detection unit operable to detect restriction information out of a part of the picture data coded by the first coding method, the restriction information being used to restrict a reference relationship so that reference is not performed beyond a group of pictures which is processed as one group; a decision unit operable to decide the reference relationship based on the restriction information, when the detection unit detects the restriction information; and a coding unit operable to code the picture data decoded by the decoding unit, by a second coding method and based on the reference relationship decided by the decision unit.
摘要翻译：提供了一种运动图像编码装置和该装置使用的运动图像编码方法，当第一编码方法被转换为第二编码方法时，可以防止参考图像的搜索范围被不必要地扩展。运动图像编码装置对运动图像进行编码，并且包括：解码单元，用于对由第一编码方法编码的图像数据进行解码; 检测单元，用于检测由第一编码方法编码的图像数据的一部分中的限制信息，所述限制信息用于限制参考关系，使得不被执行超过作为一组处理的图像组之外的参考 ; 确定单元，用于当所述检测单元检测到所述限制信息时，基于所述限制信息来确定所述参考关系; 以及编码单元，其可操作以通过第二编码方法并且基于由所述判定单元确定的参考关系来对由所述解码单元解码的图像数据进行编码。

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