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。

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。

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。

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。

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。

公开(公告)号：US20070110161A1

公开(公告)日：2007-05-17

申请号：US11591451

申请日：2006-11-02

申请人： Katsuo Saigo ,  Tatsuro Juri ,  Hideyuki Ohgose ,  Koji Arimura ,  Hiroshi Arakawa ,  Kei Tasaka ,  Yuuki Maruyama

发明人： Katsuo Saigo ,  Tatsuro Juri ,  Hideyuki Ohgose ,  Koji Arimura ,  Hiroshi Arakawa ,  Kei Tasaka ,  Yuuki Maruyama

IPC分类号： H04N11/02 ,  H04N11/04

CPC分类号： H04N19/57 ,  H04N19/513 ,  H04N19/56 ,  H04N19/61

摘要： The present invention provides a motion vector estimation apparatus which can decrease circuit size by reducing the amount of computations for detecting a motion vector. The motion vector estimation apparatus in the present invention includes a motion vector estimation unit which estimates a motion vector MV0F for the target block BL0 by searching within a reference picture P1 for a block with an image similar to an image in the target block BL0, which is included in a picture B2; a prediction calculation unit and a prediction range control unit which specify a search range in the reference picture P1 based on the motion vector MV0F and; the motion vector estimation unit estimates the motion vector MV1F for the target block BL1 by searching in the search range for a block with an image similar to an image in the target block BL1, which is included in the picture B3.

摘要翻译： 本发明提供一种通过减少用于检测运动矢量的计算量来减小电路尺寸的运动矢量估计装置。 本发明的运动矢量估计装置包括运动矢量估计单元，其通过在参考图像P 1中搜索具有与目标中的图像相似的图像的块来估计目标块BL 0的运动矢量MV 0 F 块BL 0，其包括在图片B 2中; 预测计算单元和预测范围控制单元，其基于运动矢量MV 0 F指定参考图像P 1中的搜索范围; 运动矢量估计单元通过在搜索范围内搜索具有与包括在图像B 3中的目标块BL 1中的图像类似的图像的块来估计目标块BL 1的运动矢量MV 1 F。

公开(公告)号：US08391362B2

公开(公告)日：2013-03-05

申请号：US11507530

申请日：2006-08-22

申请人： Yuuki Maruyama ,  Tatsuro Juri ,  Hiroshi Arakawa ,  Katsuo Saigo ,  Koji Arimura ,  Hideyuki Ohgose ,  Kei Tasaka

发明人： Yuuki Maruyama ,  Tatsuro Juri ,  Hiroshi Arakawa ,  Katsuo Saigo ,  Koji Arimura ,  Hideyuki Ohgose ,  Kei Tasaka

IPC分类号： H04B1/66 ,  H04N7/12

CPC分类号： H04N19/521 ,  H04N19/132 ,  H04N19/156 ,  H04N19/182 ,  H04N19/53 ,  H04N19/543 ,  H04N19/61

摘要： A motion vector estimation apparatus that can reduce an amount of calculation for video coding processing and thus achieve a higher bit rate and lower consumption power, while contributing to improvement in image quality and coding efficiency include: a reduced picture generation unit which generates a reduced current picture to be coded and a reduced reference picture; a region partition unit which partitions a reduced current picture to be coded into regions and generates reduced region images; a region motion vector estimation unit which estimates a region motion vector of a reduced region image; a confidence level calculation unit which calculates a confidence level of a region motion vector; and a block size narrowing-down unit which narrows down candidate block sizes so as to determine a block size to be used for coding a current block to be coded, based on a region motion vector and a confidence level of the region motion vector.

摘要翻译： 一种能够减少视频编码处理的计算量并因此实现更高的比特率和更低的消耗功率的运动矢量估计装置，同时有助于提高图像质量和编码效率，包括：减少的图像生成单元，其产生减小的电流 要编码的图片和缩小的参考图片; 区域划分单元，其将要编码的缩小的当前图像分割成区域并生成缩小的区域图像; 区域运动矢量估计单元，其估计缩小区域图像的区域运动矢量; 置信度计算单元，其计算区域运动矢量的置信度; 以及块大小缩小单元，其基于区域运动矢量的区域运动向量和置信度，缩小候选块大小，以便确定要用于编码当前要编码的块的块大小。

公开(公告)号：US20070047652A1

公开(公告)日：2007-03-01

申请号：US11507530

申请日：2006-08-22

申请人： Yuuki Maruyama ,  Tatsuro Juri ,  Hiroshi Arakawa ,  Katsuo Saigo ,  Koji Arimura ,  Hideyuki Ohgose ,  Kei Tasaka

发明人： Yuuki Maruyama ,  Tatsuro Juri ,  Hiroshi Arakawa ,  Katsuo Saigo ,  Koji Arimura ,  Hideyuki Ohgose ,  Kei Tasaka

IPC分类号： H04N11/02 ,  H04N11/04

CPC分类号： H04N19/521 ,  H04N19/132 ,  H04N19/156 ,  H04N19/182 ,  H04N19/53 ,  H04N19/543 ,  H04N19/61

摘要： A motion vector estimation apparatus that can reduce an amount of calculation for video coding processing and thus achieve a higher bit rate and lower consumption power, while contributing to improvement in image quality and coding efficiency include: a reduced picture generation unit which generates a reduced current picture to be coded and a reduced reference picture; a region partition unit which partitions a reduced current picture to be coded into regions and generates reduced region images; a region motion vector estimation unit which estimates a region motion vector of a reduced region image; a confidence level calculation unit which calculates a confidence level of a region motion vector; and a block size narrowing-down unit which narrows down candidate block sizes so as to determine a block size to be used for coding a current block to be coded, based on a region motion vector and a confidence level of the region motion vector.

摘要翻译： 一种能够减少视频编码处理的计算量并因此实现更高的比特率和更低的消耗功率的运动矢量估计装置，同时有助于提高图像质量和编码效率，包括：减少的图像生成单元，其产生减小的电流 要编码的图片和缩小的参考图片; 区域划分单元，其将要编码的缩小的当前图像分割成区域并生成缩小的区域图像; 区域运动矢量估计单元，其估计缩小区域图像的区域运动矢量; 置信度计算单元，其计算区域运动矢量的置信度; 以及块大小缩小单元，其基于区域运动矢量的区域运动向量和置信度，缩小候选块大小，以便确定要用于编码当前要编码的块的块大小。

公开(公告)号：US20070098075A1

公开(公告)日：2007-05-03

申请号：US11586584

申请日：2006-10-26

申请人： Hideyuki Ohgose ,  Tatsuro Juri ,  Hiroshi Arakawa ,  Katsuo Saigo ,  Koji Arimura ,  Yuuki Maruyama ,  Kei Tasaka

发明人： Hideyuki Ohgose ,  Tatsuro Juri ,  Hiroshi Arakawa ,  Katsuo Saigo ,  Koji Arimura ,  Yuuki Maruyama ,  Kei Tasaka

IPC分类号： H04N11/02 ,  H04N11/04

CPC分类号： H04N19/57 ,  H04N5/145 ,  H04N19/53 ,  H04N19/61

摘要： To provide a motion vector estimating device and a motion vector estimating method which are capable of estimating motion vectors with a high accuracy while reducing the processing amount. The picture coding apparatus includes: a picture reducing unit which generates a reduced picture to be coded and a reduced reference picture based on an input picture including a current block and a reference picture, an area dividing unit which divides the reduced picture to be coded into plural areas, an area motion vector estimating unit which estimates, for each area, an area motion vector with respect to the reduced reference picture, a correlation calculating unit which calculates the correlation of each area motion vector, a correlation calculating unit which calculates, for each area, the correlation of the area motion vector, a search range determining unit which determines the information about the motion vector search range based on the area motion vectors and the correlations of the area motion vectors, and a coding unit which has a motion estimating unit. The motion estimating unit determines motion vector search ranges and estimates motion vectors.

摘要翻译： 提供能够在减少处理量的同时高精度地估计运动矢量的运动矢量估计装置和运动矢量估计方法。 图像编码装置包括：图像缩小单元，其基于包括当前块和参考图像的输入图像生成要编码的缩小图像和缩小参考图像;区域划分单元，将要编码的缩小图像分为 多个区域，区域运动矢量估计单元，针对每个区域估计相对于缩小参考图像的区域运动矢量;相关计算单元，计算每个区域运动矢量的相关性;相关计算单元，计算用于 每个区域，区域运动矢量的相关性，基于区域运动矢量确定关于运动矢量搜索范围的信息的搜索范围确定单元和区域运动矢量的相关性以及具有运动估计的编码单元 单元。 运动估计单元确定运动矢量搜索范围并估计运动矢量。

公开(公告)号：US08451898B2

公开(公告)日：2013-05-28

申请号：US11591451

申请日：2006-11-02

申请人： Katsuo Saigo ,  Tatsuro Juri ,  Hideyuki Ohgose ,  Koji Arimura ,  Hiroshi Arakawa ,  Kei Tasaka ,  Yuuki Maruyama

发明人： Katsuo Saigo ,  Tatsuro Juri ,  Hideyuki Ohgose ,  Koji Arimura ,  Hiroshi Arakawa ,  Kei Tasaka ,  Yuuki Maruyama

IPC分类号： H04N11/02 ,  H04N11/04

CPC分类号： H04N19/57 ,  H04N19/513 ,  H04N19/56 ,  H04N19/61

摘要： The present invention provides a motion vector estimation apparatus which can decrease circuit size by reducing the amount of computations for detecting a motion vector. The motion vector estimation apparatus in the present invention includes a motion vector estimation unit which estimates a motion vector MV0F for the target block BL0 by searching within a reference picture P1 for a block with an image similar to an image in the target block BL0, which is included in a picture B2; a prediction calculation unit and a prediction range control unit which specify a search range in the reference picture P1 based on the motion vector MV0F and; the motion vector estimation unit estimates the motion vector MV1F for the target block BL1 by searching in the search range for a block with an image similar to an image in the target block BL1, which is included in the picture B3.

摘要翻译： 本发明提供一种通过减少用于检测运动矢量的计算量来减小电路尺寸的运动矢量估计装置。 本发明的运动矢量估计装置包括运动矢量估计单元，其通过在参考图像P1内搜索具有与目标块BL0中的图像相似的图像的块来估计目标块BL0的运动矢量MV0F，运动矢量估计单元 包含在图片B2中; 预测计算单元和预测范围控制单元，其基于运动矢量MV0F指定参考图像P1中的搜索范围; 运动矢量估计单元通过在搜索范围内搜索具有与包括在图像B3中的目标块BL1中的图像类似的图像的块来估计目标块BL1的运动矢量MV1F。