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1. 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。

2. 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。

3. 发明申请

US20090103618A1 PICTURE CODING APPARATUS AND PICTURE 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：US20090103618A1
公开(公告)日：2009-04-23
申请号：US12252593
申请日：2008-10-16
申请人： Koji Arimura , Yuki Maruyama , Hideyuki Ohgose
发明人： Koji Arimura , Yuki Maruyama , Hideyuki Ohgose
IPC分类号： H04N7/32
CPC分类号： H04N19/137 , H04N19/109 , H04N19/169 , H04N19/61
摘要： The picture coding apparatus includes: a picture feature amount extracting unit which extracts respective feature amounts of the current picture and a picture having a specific relationship with the current picture; a correlation degree calculating unit which calculates, based on the feature amount extracted by the feature amount extracting unit, a correlation degree indicating a degree of image similarity between the current picture and the picture having a specific relationship with the current picture; a picture type determining unit which determines, depending on the calculated correlation degree, a picture type for the current picture, from two picture types on which different inter-picture prediction is performed; and a coding unit which codes the current picture according to the determined picture type.
摘要翻译：图像编码装置包括：图像特征量提取单元，其提取当前图像的各个特征量和与当前图像具有特定关系的图像; 相关度计算单元，其基于由特征量提取单元提取的特征量，计算指示当前图像与与当前图像具有特定关系的图像之间的图像相似度的相关度; 图像类型确定单元，根据所计算的相关度，从执行不同的画面间预测的两种图像类型中确定当前图像的图像类型; 以及编码单元，其根据确定的图像类型对当前图像进行编码。

4. 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。

5. 发明授权

US08396125B2 Picture coding apparatus and picture 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：US08396125B2
公开(公告)日：2013-03-12
申请号：US12252593
申请日：2008-10-16
申请人： Koji Arimura , Yuki Maruyama , Hideyuki Ohgose
发明人： Koji Arimura , Yuki Maruyama , Hideyuki Ohgose
IPC分类号： H04N7/00
CPC分类号： H04N19/137 , H04N19/109 , H04N19/169 , H04N19/61
摘要： A picture coding apparatus includes a picture feature amount extracting unit which extracts respective feature amounts of the current picture and a picture having a specific relationship with the current picture; a correlation degree calculating unit which calculates, based on the feature amount extracted by the feature amount extracting unit, a correlation degree indicating a degree of image similarity between the current picture and the picture having a specific relationship with the current picture; a picture type determining unit which determines, depending on the calculated correlation degree, a picture type for the current picture, from two picture types on which different inter-picture prediction is performed; and a coding unit which codes the current picture according to the determined picture type.
摘要翻译：图像编码装置包括图像特征量提取单元，其提取当前图像的各个特征量和与当前图像具有特定关系的图像; 相关度计算单元，其基于由特征量提取单元提取的特征量，计算指示当前图像与与当前图像具有特定关系的图像之间的图像相似度的相关度; 图像类型确定单元，根据所计算的相关度，从执行不同的画面间预测的两种图像类型中确定当前图像的图像类型; 以及编码单元，其根据确定的图像类型对当前图像进行编码。

6. 发明授权

US08135060B2 Picture coding apparatus 失效
标题翻译：图像编码装置
公开(公告)号：US08135060B2
公开(公告)日：2012-03-13
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： H04N7/12
CPC分类号： H04N19/43 , H04N19/107 , H04N19/124 , H04N19/152 , H04N19/154 , H04N19/172 , H04N19/423 , H04N19/61
摘要： A picture coding apparatus, optimizing a data amount of coded picture data without entailing an increase in circuit size and/or power consumption, includes a picture input unit obtaining a moving picture signal Vin. Further, the picture coding apparatus includes a buffer, includes a lead detecting unit detecting a lead portion from the moving picture represented by the moving picture signal Vin, includes a coding unit coding the moving picture signal Vin in the lead portion detected by the lead detecting unit, according to a coding condition for temporary coding, and includes a coding condition generating unit generating a coding condition for actual coding, based on the result of the coding by the coding unit and the coding condition for temporary coding. Additionally, 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/或功率消耗，包括获得运动图像信号Vin的图像输入单元。此外，图像编码装置包括缓冲器，包括从由运动图像信号Vin表示的运动图像检测引导部分的引导检测单元，包括对由引导检测检测到的引导部分中的运动图像信号Vin进行编码的编码单元基于编码单元的编码结果和临时编码的编码条件，生成用于实际编码的编码条件的编码条件生成单元。此外，根据实际编码的编码条件，编码单元对表示包括前述引导部分的运动图像的运动图像信号Vin进行编码。

7. 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。

8. 发明申请

US20080317377A1 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：US20080317377A1
公开(公告)日：2008-12-25
申请号：US12142470
申请日：2008-06-19
申请人： Katsuo SAIGO , Tatsuro Juri , Hideyuki Ohgose , Koji Arimura , Hiroshi Arakawa , Kei Tasaka , Yuki Maruyama
发明人： Katsuo SAIGO , Tatsuro Juri , Hideyuki Ohgose , Koji Arimura , Hiroshi Arakawa , Kei Tasaka , Yuki Maruyama
IPC分类号： G06K9/00
CPC分类号： H04N21/42202 , H04N9/045 , H04N19/117 , H04N19/126 , H04N19/136 , H04N19/186 , H04N19/61 , H04N19/70 , H04N19/86 , H04N21/4223
摘要： The image coding apparatus according to the present invention is an image coding apparatus, including an imaging unit, a chroma quantization width adjustment unit configured to determine a chroma quantization width using a first method when the amount of the incident light on the imaging unit is larger than the predetermined amount, and to adjust the chroma quantization width such that the chroma quantization width is larger than a quantization width determined using the first method when the light amount judging unit judges that the amount of the incident light is smaller than the predetermined amount, and a luma quantization width adjustment unit configured to determine a luma quantization width using a second method without being dependent on the amount of the incident light.
摘要翻译：根据本发明的图像编码装置是一种图像编码装置，包括：成像单元，色度量化宽度调整单元，被配置为当成像单元上的入射光量较大时，使用第一种方法来确定色度量化宽度并且当光量判断单元判断入射光的量小于预定量时，调整色度量化宽度，使得色度量化宽度大于使用第一种方法确定的量化宽度，以及亮度量化宽度调整单元，被配置为使用第二种方法来确定亮度量化宽度，而不依赖于入射光的量。

9. 发明申请

US20080151996A1 MOVING PICTURE CODING APPARATUS AND MOVING PICTURE CODING METHOD 审中-公开
标题翻译：移动图像编码装置和移动图像编码方法
公开(公告)号：US20080151996A1
公开(公告)日：2008-06-26
申请号：US11954483
申请日：2007-12-12
申请人： Koji ARIMURA , Tatsuro Juri , Hideyuki Ohgose , Katsuo Saigo , Hiroshi Arakawa , Kei Tasaka , Yuki Maruyama
发明人： Koji ARIMURA , Tatsuro Juri , Hideyuki Ohgose , Katsuo Saigo , Hiroshi Arakawa , Kei Tasaka , Yuki Maruyama
IPC分类号： H04N7/40
CPC分类号： H04N19/112 , H04N19/137 , H04N19/15 , H04N19/159 , H04N19/16 , H04N19/172 , H04N19/176 , H04N19/40 , H04N19/61
摘要： The moving picture coding apparatus according to the present invention includes: a decoding unit 10 which decodes an MPEG2 stream; a coding parameter extracting unit 11 which extracts a coding parameter of MPEG2 from the MPEG stream; a re-coding parameter determining unit 12 which judges, based on the coding parameter of MPEG2 extracted by the coding parameter extracting unit 11, the degree of correlation between image data coded in MPEG2 and its reference picture and determines a coding parameter of H.264 based on the result of the judgment; and a coding unit 13 which codes, in H.264, the image data decoded by the decoding unit 10, using the coding parameter of H.264 determined by the re-coding parameter determining unit 12.
摘要翻译：根据本发明的运动图像编码装置包括：解码单元10，其解码MPEG2流; 编码参数提取单元11，其从MPEG流中提取MPEG2的编码参数; 重新编码参数确定单元12，其基于由编码参数提取单元11提取的MPEG2的编码参数，判断MPEG2编码的图像数据与其参考图像之间的相关度，并确定H.264的编码参数根据判决结果; 以及编码单元13，其在H.264中使用由重新编码参数确定单元12确定的H.264的编码参数来编码由解码单元10解码的图像数据。

10. 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。

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