公开(公告)号：US20100220782A1

公开(公告)日：2010-09-02

申请号：US12738886

申请日：2008-10-03

申请人： Hiroshi Arakawa ,  Hideyuki Ohgose

发明人： Hiroshi Arakawa ,  Hideyuki Ohgose

IPC分类号： H04N7/26

CPC分类号： H04N19/172 ,  H04N19/124 ,  H04N19/152 ,  H04N19/61 ,  H04N19/91

摘要： A video coding device (100) includes a buffer simulation unit (103) that calculates an occupation amount of a virtual buffer to be used for controlling a coding amount, by using, for each picture, (a) a code length of a code that is an intermediate result of compression coding and (b) a code length of a compressed code that is a final result of the compression coding. This means that, for a picture that has not yet processed by an arithmetic coding unit (102), an occupation amount of the virtual buffer is calculated by using a code length of codes provided from a binarization unit (101).

摘要翻译： 视频编码装置（100）包括：缓冲器模拟部（103），其通过对每个图像使用（a）代码长度来计算要用于控制编码量的虚拟缓冲器的占用量， 是压缩编码的中间结果，（b）作为压缩编码的最终结果的压缩代码的代码长度。 这意味着，对于尚未由算术编码单元（102）处理的图像，通过使用从二值化单元（101）提供的代码的代码长度来计算虚拟缓冲器的占用量。

公开(公告)号：US20090041125A1

公开(公告)日：2009-02-12

申请号：US12186067

申请日：2008-08-05

申请人： Hideyuki Ohgose

发明人： Hideyuki Ohgose

IPC分类号： H04N7/26

CPC分类号： H04N19/527 ,  H04N19/53 ,  H04N19/533

摘要： A motion vector estimating device estimating a motion vector having high accuracy is provided. An eliminating unit eliminates each of pictures in a set of input pictures for each picture. A picture reducing unit reduces left pictures after the elimination, and generates reduced pictures. An overall motion vector estimating unit reads the reduced pictures, stored in the frame memory, as either reduced inputted pictures or reduced reference pictures, and estimates an overall motion vector between reduced pictures. Based on the overall motion vector estimated between the reduced pictures, a correction motion vector calculating unit calculates a motion vector between two reduced pictures as a correction motion vector. The correction motion vector calculating unit calculates the motion vector in the order of the inputted pictures in a pre-eliminated set of input pictures. A coding unit estimates the motion vector for each macroblock, using a determined search range, and performs cording processing.

摘要翻译： 提供了估计具有高精度的运动矢量的运动矢量估计装置。 消除单元消除了每张图片的一组输入图像中的每张照片。 图像减少单元在消除后减少左图像，并且生成缩小的图像。 总体运动矢量估计单元将存储在帧存储器中的缩小图像作为缩小的输入图像或缩小的参考图像读取，并估计缩小图像之间的整体运动矢量。 基于在缩小图像之间估计的总运动矢量，校正运动矢量计算单元计算两个缩小图像之间的运动矢量作为校正运动矢量。 校正运动矢量计算单元以预先消除的输入图像集合中的输入图像的顺序来计算运动矢量。 编码单元使用确定的搜索范围来估计每个宏块的运动矢量，并执行线条处理。

公开(公告)号：US06237012B1

公开(公告)日：2001-05-22

申请号：US09188745

申请日：1998-11-09

申请人： Hideyuki Ohgose

发明人： Hideyuki Ohgose

IPC分类号： G06F1714

CPC分类号： G06F17/14

摘要： An orthogonal transform apparatus has: orthogonal transform circuit for performing n-dimensional s-order (n and s are natural numbers) orthogonal transform, modified-information control circuit for performing control in accordance with modified information for outputting n-dimensional m-order data as n-dimensional p-order data (m and p are natural numbers), and rearrangement circuit for performing the following in accordance with the control by said modified-information control circuit: (1) m-p data values from the high-order side out of m-order input data values are set to 0 when m is equal to s and m is larger than p, p-m data values are added to the high-order side among m-order input data values to rearrange the data values when m is smaller than p, or data values are left as they are when m is equal to p; (2) the data values in said Item (1) are rearranged after discarding m-s data values from the high-order side of said m-order input data values before rearranging the data values in said Item (1) when m is larger than s; and (3) the data values in said Item (1) are rearranged after adding s-m 0 data values to the high-order side of said m-order input data values before rearranging the data values in said Item (1) when m is smaller than s; wherein said orthogonal transform circuit performs orthogonal transform for the n-dimensional s-order data values rearranged by said rearrangement circuit.

摘要翻译： 正交变换装置具有：用于执行n维s阶（n和s是自然数）正交变换的正交变换电路，用于根据用于输出n维m阶数据的修改信息执行控制的修改信息控制电路 作为n维p次数据（m和p是自然数），以及根据所述修改信息控制电路的控制执行以下操作的重排电路：（1）从高阶侧出来的mp数据值 当m等于s并且m大于p时，m阶输入数据值被设置为0，在m阶输入数据值中的pm数据值被添加到高阶侧，以便当m是 当m等于p时，小于p或数据值保持原样;（2）在从所述m阶输入的高阶侧丢弃ms数据值之后，所述项目（1）中的数据值被重新排列 重新排列数据值之前的数据值 所述项目（1）当m大于s时; 以及（3）当m较小时，在重新排列所述项目（1）中的数据值之前，将sm 0数据值添加到所述m阶输入数据值的高阶侧后，重新排列所述项目（1）中的数据值 比s 其中所述正交变换电路对由所述重新排列电路重新排列的n维s阶数据值进行正交变换。

公开(公告)号：US08811470B2

公开(公告)日：2014-08-19

申请号：US10599494

申请日：2005-04-01

申请人： Kozo Kimura ,  Tokuzo Kiyohara ,  Hiroshi Mizuno ,  Junji Michiyama ,  Tomohiko Kitamura ,  Ryoji Yamaguchi ,  Manabu Kuroda ,  Nobuhiko Yamada ,  Hideyuki Ohgose ,  Akifumi Yamana

发明人： Kozo Kimura ,  Tokuzo Kiyohara ,  Hiroshi Mizuno ,  Junji Michiyama ,  Tomohiko Kitamura ,  Ryoji Yamaguchi ,  Manabu Kuroda ,  Nobuhiko Yamada ,  Hideyuki Ohgose ,  Akifumi Yamana

IPC分类号： H04N7/12

CPC分类号： G06F13/4027 ,  H04N5/775 ,  H04N5/781 ,  H04N5/85 ,  H04N5/907 ,  H04N9/7921 ,  H04N9/8042

摘要： An integrated circuit for video/audio processing in which design resources obtained by development of video/audio devices can also be used for other types of video/audio devices. The integrated circuit includes a microcomputer that includes a CPU, a stream input/output for inputting/outputting a video and audio stream to and from an external device, a media processor that executes the media processing including at least one compressing and decompressing the video and audio stream inputted to the stream input/output, an AV input/output that converts the video and audio stream subjected to the media processing by the media processor into video and audio signals and outputting these signals to the external device. A memory interface controls a data transfer between the microcomputer, the stream input/output, the media processor and the AV input/output and an external memory.

摘要翻译： 用于视频/音频处理的集成电路，其中通过开发视频/音频设备获得的设计资源也可以用于其他类型的视频/音频设备。 集成电路包括微型计算机，其包括CPU，用于向外部设备输入/输出视频和音频流的流输入/输出，执行媒体处理的媒体处理器，该媒体处理包括至少一个压缩和解压缩视频，以及 输入到流输入/输出的音频流，将由媒体处理器进行媒体处理的视频和音频流转换成视频和音频信号并将这些信号输出到外部设备的AV输入/输出。 存储器接口控制微机，流输入/输出，媒体处理器和AV输入/输出之间的数据传输以及外部存储器。

公开(公告)号：US08073057B2

公开(公告)日：2011-12-06

申请号：US11659366

申请日：2005-08-03

申请人： Hideyuki Ohgose ,  Hiroki Inagaki ,  Shinya Kadono

发明人： Hideyuki Ohgose ,  Hiroki Inagaki ,  Shinya Kadono

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

CPC分类号： H04N19/567 ,  H04N19/176 ,  H04N19/436 ,  H04N19/52 ,  H04N19/523 ,  H04N19/533 ,  H04N19/61

摘要： To provide a motion vector estimating device which is capable of calculating the optimum motion vector by a trade-off between the bit rate of a motion vector and a differential amount, and estimating a motion vector in a pipeline structure at high speed, a motion vector estimating method which enables the same. The motion vector estimating device (100) includes: a first motion vector estimating unit (102) which calculates an evaluation value based on the amount of distortion calculated using search blocks and an input block and a correction value calculated using a motion vector with respect to each search block, a first prediction vector, and a weighting coefficient, and estimates a first motion vector of the input block based on the location of the input block and the location of a search block which provides the smallest evaluation value; a weighted coefficient calculating unit (103) which calculates the weighted coefficient; a prediction vector generating unit (104) which generates the first motion vector based on the first motion vector; and a second motion estimating unit (105) which estimates a motion vector determining, as an evaluation value, only the amount of distortion calculated using the search blocks and the input block.

摘要翻译： 为了提供能够通过运动矢量的比特率与微分量之间的折衷来计算最佳运动矢量并且以高速估计流水线结构中的运动矢量的运动矢量估计装置，运动矢量 估算方法使其相同。 运动矢量估计装置（100）包括：第一运动矢量估计单元，其基于使用搜索块计算的失真量和输入块，以及使用运动矢量计算的校正值来计算评估值， 每个搜索块，第一预测向量和加权系数，并且基于输入块的位置和提供最小评估值的搜索块的位置来估计输入块的第一运动矢量; 加权系数计算单元，其计算加权系数; 预测矢量生成单元，其基于所述第一运动矢量生成所述第一运动矢量; 以及第二运动估计单元（105），其估计仅使用搜索块和输入块计算的失真量作为评估值的运动矢量。

公开(公告)号：US20090290642A1

公开(公告)日：2009-11-26

申请号：US12186601

申请日：2008-08-06

申请人： Hideyuki Ohgose

发明人： Hideyuki Ohgose

IPC分类号： H04N7/26

CPC分类号： H04N19/40 ,  H04N19/46 ,  H04N19/56 ,  H04N19/57 ,  H04N19/61

摘要： The image coding apparatus comprises: a decoding unit 102 which decodes first coded data to generate a decoded picture and decoding information containing motion vectors; a coding unit 104 which codes, in a second coding scheme, the decoded picture generated by the decoding unit 102, to generate second coded data including a coded picture and coding information containing motion vectors; a basic motion information generating unit 105 which generates basic motion information from either the decoding information or the coding information which has been selected based on a coding condition indicating a picture type of a current decoded picture to be coded by the coding unit, wherein the coding unit 104 determines a search range for estimating motion vectors of the current decoded picture, according to the basic motion information generated by the basic motion information generating unit 105, and estimates motion vectors of the current decoded picture in the determined search range.

摘要翻译： 图像编码装置包括：解码单元102，其对第一编码数据进行解码以生成解码图像，以及包含运动矢量的解码信息; 编码单元104，以第二编码方案编码由解码单元102生成的解码图像，以生成包括编码图像的第二编码数据和包含运动矢量的编码信息; 基本运动信息生成单元105，其基于由编码单元基于指示要编码的当前解码图像的图像类型的编码条件，从解码信息或已经选择的编码信息中生成基本运动信息，其中编码 单元104根据由基本运动信息生成单元105产生的基本运动信息，确定用于估计当前解码图像的运动矢量的搜索范围，并且估计所确定的搜索范围内的当前解码图像的运动矢量。

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。

公开(公告)号：US06650708B1

公开(公告)日：2003-11-18

申请号：US09685118

申请日：2000-10-10

申请人： Hideyuki Ohgose

发明人： Hideyuki Ohgose

IPC分类号： H04N712

CPC分类号： H04N19/59 ,  H04N19/105 ,  H04N19/122 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/48 ,  H04N19/61

摘要： A video signal encoding apparatus for enlarging a video signal by subjecting it to a coding process. The apparatus, using m×n blocks (m, n: natural number) as the unit block for coding a motion picture, performs DCT calculation and quantization, and, then, converting the block into s×t blocks (s, t: natural number), performs variable length coding. Thus, the apparatus generates compressed data of an enlarged motion picture and delivers the enlarged output. In the local decoder of the apparatus, it is switch selected by a switcher whether m×n inverse quantization coefficients, obtained by inverse quantization, are to be decoded by an s×t IDCT unit or by an m×n IDCT unit, in accordance with the accuracy in motion compensation. Further, the apparatus has a resizing unit for adjusting a motion-compensated reference picture to the picture size of an input image. The video signal encoding apparatus performs the encoding by enlarging a motion picture in a frequency domain so that the amount of data calculation in the encoding is decreased and deterioration in picture quality is suppressed.

摘要翻译： 一种用于通过对视频信号进行编码处理来放大视频信号的视频信号编码装置。 使用m×n块（m，n：自然数）作为编码运动画面的单位块的装置，进行DCT运算和量化，然后将块转换成sxt块（s，t：自然数） 可变长度编码。 因此，该装置产生放大的动态图像的压缩数据并传送放大的输出。 在设备的本地解码器中，切换器选择是否通过反量化获得的mxn个逆量化系数是否由sxt IDCT单元或mxn IDCT单元根据运动补偿的精度来解码 。 此外，该装置具有用于将运动补偿参考图像调整为输入图像的图像大小的调整大小单位。 视频信号编码装置通过在频域中放大运动图像来进行编码，使得编码中的数据计算量减少并且图像质量的劣化被抑制。

公开(公告)号：US08184706B2

公开(公告)日：2012-05-22

申请号：US12186067

申请日：2008-08-05

申请人： Hideyuki Ohgose

发明人： Hideyuki Ohgose

IPC分类号： H04N7/12

CPC分类号： H04N19/527 ,  H04N19/53 ,  H04N19/533

摘要： A motion vector estimating device estimating a motion vector having high accuracy is provided. An eliminating unit eliminates each of pictures in a set of input pictures for each picture. A picture reducing unit reduces left pictures after the elimination, and generates reduced pictures. An overall motion vector estimating unit reads the reduced pictures, stored in the frame memory, as either reduced inputted pictures or reduced reference pictures, and estimates an overall motion vector between reduced pictures. Based on the overall motion vector estimated between the reduced pictures, a correction motion vector calculating unit calculates a motion vector between two reduced pictures as a correction motion vector. The correction motion vector calculating unit calculates the motion vector in the order of the inputted pictures in a pre-eliminated set of input pictures. A coding unit estimates the motion vector for each macroblock, using a determined search range, and performs cording processing.

摘要翻译： 提供了估计具有高精度的运动矢量的运动矢量估计装置。 消除单元消除了每张图片的一组输入图像中的每张照片。 图像减少单元在消除后减少左图像，并且生成缩小的图像。 总体运动矢量估计单元将存储在帧存储器中的缩小图像作为缩小的输入图像或缩小的参考图像读取，并估计缩小图像之间的整体运动矢量。 基于在缩小图像之间估计的总运动矢量，校正运动矢量计算单元计算两个缩小图像之间的运动矢量作为校正运动矢量。 校正运动矢量计算单元以预先消除的输入图像集合中的输入图像的顺序来计算运动矢量。 编码单元使用确定的搜索范围来估计每个宏块的运动矢量，并执行线条处理。

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。