公开(公告)号：US20060126730A1

公开(公告)日：2006-06-15

申请号：US11299740

申请日：2005-12-13

申请人： Hiroshi Arakawa ,  Koji Arimura ,  Tatsuro Juri ,  Takashi Masuno ,  Kei Tasaka

发明人： Hiroshi Arakawa ,  Koji Arimura ,  Tatsuro Juri ,  Takashi Masuno ,  Kei Tasaka

IPC分类号： H04N11/04 ,  H04B1/66 ,  H04N7/12 ,  H04N11/02

CPC分类号： H04N19/436 ,  H04N19/11 ,  H04N19/127 ,  H04N19/14 ,  H04N19/176 ,  H04N19/48 ,  H04N19/593 ,  H04N19/61

摘要： To provide an intra prediction apparatus which can circumvent a hazard problem and improve the time reduction effect. An intra prediction apparatus 11 performs intra predictions of a picture. The intra predictions include: second intra predictions of respective second blocks (blocks) which are obtained by dividing a first pixel block; and a first intra prediction of the first block (macroblock) which constitutes the picture. The intra prediction apparatus 11 includes: an intra prediction unit (a prediction unit 113, an orthogonal transform and quantization unit 115, an inverse orthogonal transform and inverse quantization unit 116, and an adder 117) which performs the intra predictions; and a control unit 119 which controls the intra prediction unit to perform in parallel the intra prediction of the macroblock and the intra predictions of the respective pixel blocks.

摘要翻译： 提供能够规避危害问题并提高时间缩短效果的帧内预测装置。 帧内预测装置11对图像进行帧内预测。 帧内预测包括：通过划分第一像素块获得的各个第二块（块）的第二帧内预测; 以及构成图像的第一块（宏块）的第一帧内预测。 帧内预测装置11具有执行帧内预测的帧内预测单元（预测单元113，正交变换和量化单元115，逆正交变换和逆量化单元116以及加法器117） 以及控制单元119，其控制帧内预测单元并行执行宏块的帧内预测和各个像素块的帧内预测。

公开(公告)号：US08472083B2

公开(公告)日：2013-06-25

申请号：US11299740

申请日：2005-12-13

申请人： Hiroshi Arakawa ,  Koji Arimura ,  Tatsuro Juri ,  Takashi Masuno ,  Kei Tasaka

发明人： Hiroshi Arakawa ,  Koji Arimura ,  Tatsuro Juri ,  Takashi Masuno ,  Kei Tasaka

IPC分类号： G06T5/00

CPC分类号： H04N19/436 ,  H04N19/11 ,  H04N19/127 ,  H04N19/14 ,  H04N19/176 ,  H04N19/48 ,  H04N19/593 ,  H04N19/61

摘要： To provide an intra prediction apparatus which can circumvent a hazard problem and improve the time reduction effect. An intra prediction apparatus 11 performs intra predictions of a picture. The intra predictions include: second intra predictions of respective second blocks (blocks) which are obtained by dividing a first pixel block; and a first intra prediction of the first block (macroblock) which constitutes the picture. The intra prediction apparatus 11 includes: an intra prediction unit (a prediction unit 113, an orthogonal transform and quantization unit 115, an inverse orthogonal transform and inverse quantization unit 116, and an adder 117) which performs the intra predictions; and a control unit 119 which controls the intra prediction unit to perform in parallel the intra prediction of the macroblock and the intra predictions of the respective pixel blocks.

摘要翻译： 提供能够规避危害问题并提高时间缩短效果的帧内预测装置。 帧内预测装置11对图像进行帧内预测。 帧内预测包括：通过划分第一像素块获得的各个第二块（块）的第二帧内预测; 以及构成图像的第一块（宏块）的第一帧内预测。 帧内预测装置11具有执行帧内预测的帧内预测单元（预测单元113，正交变换和量化单元115，逆正交变换和逆量化单元116以及加法器117） 以及控制单元119，其控制帧内预测单元并行执行宏块的帧内预测和各个像素块的帧内预测。

公开(公告)号：US08135064B2

公开(公告)日：2012-03-13

申请号：US11291923

申请日：2005-12-02

申请人： Kei Tasaka ,  Hiroshi Arakawa ,  Takashi Masuno ,  Koji Arimura ,  Tatsuro Juri

发明人： Kei Tasaka ,  Hiroshi Arakawa ,  Takashi Masuno ,  Koji Arimura ,  Tatsuro Juri

IPC分类号： H04B1/66 ,  H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N9/12 ,  G06K9/46

CPC分类号： H04N19/16 ,  H04N19/11 ,  H04N19/139 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61

摘要： An intra prediction apparatus includes: a candidate narrowing-down unit which narrows down, from a plurality of intra prediction directions, an intra prediction direction candidate which is applied to a block of multiple pixels that constitutes a video in accordance with a characteristic of the video; and an intra prediction execution unit which executes intra prediction in the intra prediction direction narrowed down by said candidate narrowing-down unit. Through this, computational load can be lightened while contributing to improvement in picture quality and encoding efficiency.

摘要翻译： 帧内预测装置包括：从多个帧内预测方向将根据视频的特性应用于构成视频的多个像素的块的帧内预测方向候选进行缩小的候补缩小单位 ; 以及帧内预测执行单元，其执行由所述候选缩小单元缩小的帧内预测方向的帧内预测。 通过这一点，可以减轻计算负担，同时有助于提高图像质量和编码效率。

公开(公告)号：US20060120456A1

公开(公告)日：2006-06-08

申请号：US11291923

申请日：2005-12-02

申请人： Kei Tasaka ,  Hiroshi Arakawa ,  Takashi Masuno ,  Koji Arimura ,  Tatsuro Juri

发明人： Kei Tasaka ,  Hiroshi Arakawa ,  Takashi Masuno ,  Koji Arimura ,  Tatsuro Juri

IPC分类号： H04N11/02 ,  H04N7/12 ,  H04N11/04 ,  H04B1/66

CPC分类号： H04N19/16 ,  H04N19/11 ,  H04N19/139 ,  H04N19/14 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61

摘要： An intra prediction apparatus includes: a candidate narrowing-down unit which narrows down, from a plurality of intra prediction directions, an intra prediction direction candidate which is applied to a block of multiple pixels that constitutes a video in accordance with a characteristic of the video; and an intra prediction execution unit which executes intra prediction in the intra prediction direction narrowed down by said candidate narrowing-down unit. Through this, computational load can be lightened while contributing to improvement in picture quality and encoding efficiency.

摘要翻译： 帧内预测装置包括：从多个帧内预测方向将根据视频的特性应用于构成视频的多个像素的块的帧内预测方向候选进行缩小的候补缩小单元 ; 以及帧内预测执行单元，其执行由所述候选缩小单元缩小的帧内预测方向的帧内预测。 通过这一点，可以减轻计算负担，同时有助于提高图像质量和编码效率。

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：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。

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：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。