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1. 发明申请

US20100272170A1 IMAGE ENCODING APPARATUS, IMAGE ENCODING METHOD AND MEDIUM ON WHICH IMAGE ENCODING PROGRAM IS RECORDED 审中-公开
标题翻译：图像编码设备，图像编码方法和图像编码程序记录的介质
公开(公告)号：US20100272170A1
公开(公告)日：2010-10-28
申请号：US12767028
申请日：2010-04-26
申请人： Jumpei Hongo , Yousuke Yamaguchi , Noriaki Tsukuda , Hideaki Ishii , Hisanari Kimura , Shunsuke Kobayashi , Kimihiko Kazui , Atsushi Ichiki , Shin Fujita
发明人： Jumpei Hongo , Yousuke Yamaguchi , Noriaki Tsukuda , Hideaki Ishii , Hisanari Kimura , Shunsuke Kobayashi , Kimihiko Kazui , Atsushi Ichiki , Shin Fujita
IPC分类号： H04N11/02
CPC分类号： H04N19/152 , H04N19/115 , H04N19/124 , H04N19/146 , H04N19/149 , H04N19/61 , H04N19/63
摘要： An image encoding apparatus configured to perform sub-band encoding, the apparatus includes: a plurality of encoding units configured to encode an image signal separated into a plurality of sections; a plurality of storage units configured to hold data encoded by the encoding units; and a control unit configured to determine capacities of encoded data of the section of the separated image signal on the basis of statistical information capacities of the section of the separated image signal and data capacities after encoding by the encoding units.
摘要翻译：一种被配置为执行子带编码的图像编码装置，所述装置包括：多个编码单元，被配置为对分离成多个部分的图像信号进行编码; 多个存储单元，被配置为保存由编码单元编码的数据; 以及控制单元，被配置为基于分离的图像信号的部分的统计信息容量和由编码单元编码之后的数据容量来确定分离图像信号的部分的编码数据的容量。

2. 发明授权

US08306338B2 Moving-picture coding device and moving-picture coding method 有权
标题翻译：运动图像编码装置和运动图像编码方法
公开(公告)号：US08306338B2
公开(公告)日：2012-11-06
申请号：US12171130
申请日：2008-07-10
申请人： Akira Nakagawa , Hidenobu Miyoshi , Kimihiko Kazui , Hisanari Kimura
发明人： Akira Nakagawa , Hidenobu Miyoshi , Kimihiko Kazui , Hisanari Kimura
IPC分类号： G06K9/36
CPC分类号： H04N19/55 , H04N19/105 , H04N19/107 , H04N19/16 , H04N19/17 , H04N19/174 , H04N19/186 , H04N19/523
摘要： A moving-picture coding device that performs inter-field motion compensation prediction, includes a reference limit area determining unit that determines to select, for each reference picture, with respect to reference pictures used for coding, a luminance or chrominance reference limit area putting a limit to a reference picture used for generating a prediction picture of a luminance or chrominance of a coding target block belonging to the coding target picture limit area of the case upon each reference picture being previously coded; a selecting inhibit vector determining unit that determines, in a case of coding the coding block belonging to the coding target picture limit area, a selecting inhibit vector that inhibits selecting a luminance and the chrominance are comprised only of pixels of the luminance reference limit area and the chrominance reference limit area.
摘要翻译：执行场间运动补偿预测的运动图像编码装置包括参考限制区域确定单元，其确定对于每个参考图像，对于用于编码的参考图像，将亮度或色度参考限制区域放入限制为用于生成属于预先对每个参考图像进行编码的情况的编码对象图像限制区域的编码对象块的亮度或色度的预测图像的参考图像; 选择禁止向量确定单元，其在对编码对象图像限制区域的编码块进行编码的情况下，决定禁止选择亮度和色度的选择禁止矢量，仅包含亮度基准极限区域的像素，色度参考极限区域。

3. 发明申请

US20090016621A1 MOVING-PICTURE CODING DEVICE AND MOVING-PICTURE CODING METHOD 有权
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：US20090016621A1
公开(公告)日：2009-01-15
申请号：US12171130
申请日：2008-07-10
申请人： Akira Nakagawa , Hidenobu Miyoshi , Kimihiko Kazui , Hisanari Kimura
发明人： Akira Nakagawa , Hidenobu Miyoshi , Kimihiko Kazui , Hisanari Kimura
IPC分类号： G06K9/36
CPC分类号： H04N19/55 , H04N19/105 , H04N19/107 , H04N19/16 , H04N19/17 , H04N19/174 , H04N19/186 , H04N19/523
摘要： A moving-picture coding device that performs inter-field motion compensation prediction, includes a reference limit area determining unit that determines to select, for each reference picture, with respect to reference pictures used for coding, a luminance or chrominance reference limit area putting a limit to a reference picture used for generating a prediction picture of a luminance or chrominance of a coding target block belonging to the coding target picture limit area of the case upon each reference picture being previously coded; a selecting inhibit vector determining unit that determines, in a case of coding the coding block belonging to the coding target picture limit area, a selecting inhibit vector that inhibits selecting a luminance and the chrominance are comprised only of pixels of the luminance reference limit area and the chrominance reference limit area.
摘要翻译：执行场间运动补偿预测的运动图像编码装置包括参考限制区域确定单元，其确定对于每个参考图像，对于用于编码的参考图像，将亮度或色度参考限制区域放入限制为用于生成属于预先对每个参考图像进行编码的情况的编码对象图像限制区域的编码对象块的亮度或色度的预测图像的参考图像; 选择禁止向量确定单元，其在对编码对象图像限制区域的编码块进行编码的情况下，决定禁止选择亮度和色度的选择禁止矢量，仅包含亮度基准极限区域的像素，色度参考极限区域。

4. 发明授权

US08780989B2 Moving-picture coding device and moving-picture coding method 有权
标题翻译：运动图像编码装置和运动图像编码方法
公开(公告)号：US08780989B2
公开(公告)日：2014-07-15
申请号：US12170098
申请日：2008-07-09
申请人： Hidenobu Miyoshi , Akira Nakagawa , Kimihiko Kazui , Hisanari Kimura
发明人： Hidenobu Miyoshi , Akira Nakagawa , Kimihiko Kazui , Hisanari Kimura
IPC分类号： H04N7/12
CPC分类号： H04N19/86 , H04N19/107 , H04N19/109 , H04N19/11 , H04N19/16 , H04N19/176 , H04N19/197 , H04N19/55 , H04N19/61
摘要： A moving-picture coding device that divides a moving-picture signal comprised of a plurality of fields into a plurality of blocks and that can select coded area prediction in a current field and inter-field motion compensation prediction by block units, the moving-picture coding device comprises a forced intra block line determining unit, an intra selecting unit, a vector limit block line determining unit, a vector limit unit, a slice division unit a deblocking filter inhibit unit.
摘要翻译：一种运动图像编码装置，其将由多个场组成的运动图像信号分割成多个块，并且可以通过块单位选择当前场中的编码区域预测和场间运动补偿预测，运动图像编码装置包括强制帧内块确定单元，帧内选择单元，向量限制块行确定单元，向量限制单元，片分割单元和去块滤波器禁止单元。

5. 发明申请

US20100098170A1 Transcoding device and transcoding method 审中-公开
标题翻译：转码设备和转码方法
公开(公告)号：US20100098170A1
公开(公告)日：2010-04-22
申请号：US12588409
申请日：2009-10-14
申请人： Kimihiko Kazui , Yoshihiro Terashima , Noriaki Tsukuda , Akira Nakagawa
发明人： Kimihiko Kazui , Yoshihiro Terashima , Noriaki Tsukuda , Akira Nakagawa
IPC分类号： H04N7/26
CPC分类号： H04N19/40 , H04N19/139 , H04N19/176 , H04N19/433 , H04N19/56 , H04N19/61
摘要： A transcoding device includes a decoding unit that decodes both motion vectors of macroblocks and images from encoded images in a first encoding format; a first decoded image storing unit that stores therein the decoded motion vectors of macroblocks and the decoded images; a vector searching unit that searches for motion vectors of macroblocks in a second encoding format by using the decoded images stored in the first decoded image storing unit as reference images and by using the decoded motion vectors stored in the first decoded image storing unit; and a motion compensating unit that reads, from the first decoded image storing unit, areas in the decoded images, which are indicated by the motion vectors for which the vector searching unit has searched, and performs motion compensation by using the areas in the decoded images and the motion vectors for which the vector searching unit has searched.
摘要翻译：代码转换装置包括解码单元，其以第一编码格式对来自编码图像的宏块运动矢量和图像进行解码; 第一解码图像存储单元，其中存储有解码的宏块和解码图像的运动矢量; 矢量搜索单元，通过使用存储在第一解码图像存储单元中的解码图像作为参考图像并通过使用存储在第一解码图像存储单元中的解码运动矢量来搜索第二编码格式的宏块的运动矢量; 以及运动补偿单元，其从第一解码图像存储单元读取由矢量搜索单元搜索的运动矢量指示的解码图像中的区域，并且通过使用解码图像中的区域来执行运动补偿以及向量搜索单元搜索到的运动矢量。

6. 发明授权

US6104826A Method of watermark-embedding/extracting identification information into/from picture data and apparatus thereof, and computer readable medium 失效
标题翻译：将图像数据中的识别信息进行水印嵌入/提取的方法及其装置以及计算机可读介质
公开(公告)号：US6104826A
公开(公告)日：2000-08-15
申请号：US948083
申请日：1997-10-09
申请人： Akira Nakagawa , Kimihiko Kazui , Atsuko Tada , Eishi Morimatsu , Koich Tanaka
发明人： Akira Nakagawa , Kimihiko Kazui , Atsuko Tada , Eishi Morimatsu , Koich Tanaka
IPC分类号： H04N7/08 , G06T1/00 , H03M7/30 , H04N1/32 , H04N1/387 , H04N7/081 , G06K9/00
CPC分类号： H04N19/467 , G06T1/0028 , H04N1/32154 , H04N1/32165 , H04N21/23892 , H04N21/8358 , G06T2201/0052 , G06T2201/0083 , H04N2201/3233 , H04N2201/327
摘要： The present invention relates to methods for watermark-embedding/extracting identification information into/from picture data and apparatuses thereof. When identification information is watermark-embedded, the following steps are performed. Combinations of basis functions orthogonal each other are generated in association with each numerical signal. For each combination of the orthogonal basis functions, a weight coefficient is calculated so as to correspond to the combination of the basis functions by calculating a sum of products of values of the basis functions for pixels in the original picture data and pixel values of the pixels. For each numerical signal, a watermark-embedding function is referred, a input value is specified, and a pixel value is changed. When the identification information is extracted from the picture data, for each weight coefficient, the watermark-embedding function is referred, and the value of the watermark-embedding function is calculated for each weight coefficient.
摘要翻译：本发明涉及用于将图像数据中的识别信息进行水印嵌入/提取的方法及其装置。当识别信息嵌入水印时，执行以下步骤。与每个数字信号相关联地产生彼此正交的基函数的组合。对于正交基函数的每个组合，通过计算原始图像数据中的像素的基本函数的值和像素的像素的乘积之和来计算权重系数，以便对应于基函数的组合。对于每个数字信号，参考水印嵌入功能，指定输入值，并改变像素值。当从图像数据中提取识别信息时，对于每个权重系数，参照水印嵌入功能，并且针对每个权重系数计算水印嵌入函数的值。

7. 发明授权

US6104434A Video coding apparatus and decoding apparatus 失效
标题翻译：视频编码装置和解码装置
公开(公告)号：US6104434A
公开(公告)日：2000-08-15
申请号：US877508
申请日：1997-06-17
申请人： Akira Nakagawa , Kimihiko Kazui , Eishi Morimatsu , Takahiro Shimizu
发明人： Akira Nakagawa , Kimihiko Kazui , Eishi Morimatsu , Takahiro Shimizu
IPC分类号： H04N19/50 , G06T9/00 , H03M7/30 , H03M7/36 , H04N19/107 , H04N19/117 , H04N19/126 , H04N19/13 , H04N19/136 , H04N19/139 , H04N19/15 , H04N19/152 , H04N19/167 , H04N19/176 , H04N19/196 , H04N19/423 , H04N19/503 , H04N19/51 , H04N19/59 , H04N19/61 , H04N19/625 , H04N19/80 , H04N19/86 , H04N19/91 , H04N7/30
CPC分类号： H04N19/59 , H04N19/105 , H04N19/117 , H04N19/134 , H04N19/139 , H04N19/152 , H04N19/159 , H04N19/176 , H04N19/196 , H04N19/527 , H04N19/61 , H04N19/82 , H04N19/86
摘要： Video coding apparatus and decoding apparatus capable of reproducing decoded pictures without introducing unwanted noises, even if any considerable difference in pixel values or discontinuity exists at a certain block boundary. In a video coding apparatus employing predictive techniques, a dequantizer and an inverse DCT processor reproduce a prediction error signal from quantized transform coefficients. Here, a first resolution conversion unit (or downsampling unit) might have subsampled the original prediction error signal to reduce its picture resolution. If this is the case, a second resolution conversion unit (or upsampling unit) attempts to restore the original resolution of the prediction error signal by applying an upsampling process to the reproduced prediction error signal having the reduced resolution. In this upsampling process, each new pixel value in a certain block are calculated with reference to some surrounding pixels. The upsampling process, however, will not refer to the pixels belonging to any adjacent blocks that are subject to another coding scheme which is different from the coding scheme of the present block of interest. As an alternate arrangement, the upsampling process will entirely neglect the pixels in any other blocks but will refer only to the present block.
摘要翻译：即使在某个块边界处存在像素值或不连续性的任何相当大的差异，也能够再现解码图像而不引入不需要的噪声的视频编码装置和解码装置。在采用预测技术的视频编码装置中，去量化器和逆DCT处理器从量化变换系数再现预测误差信号。这里，第一分辨率转换单元（或下采样单元）可以对原始预测误差信号进行二次采样以降低其图像分辨率。如果是这种情况，则第二分辨率转换单元（或上采样单元）尝试通过对具有降低的分辨率的再现的预测误差信号应用上采样处理来恢复预测误差信号的原始分辨率。在该上采样处理中，参考一些周围像素计算某个块中的每个新像素值。然而，上采样处理将不涉及属于与当前感兴趣块的编码方案不同的另一编码方案的属于任何相邻块的像素。作为替代布置，上采样处理将完全忽略任何其他块中的像素，但将仅引用当前块。

8. 发明授权

US5737256A Inverse discrete cosine transform apparatus 失效
标题翻译：逆离散余弦变换装置
公开(公告)号：US5737256A
公开(公告)日：1998-04-07
申请号：US505857
申请日：1995-07-24
申请人： Akira Nakagawa , Kimihiko Kazui
发明人： Akira Nakagawa , Kimihiko Kazui
IPC分类号： G06F17/14 , G06T1/20 , H03M7/30 , H04N1/41 , H04N19/42 , H04N19/423 , H04N19/60 , H04N19/625
CPC分类号： G06F17/147
摘要： An 8-point inverse discrete cosine transform (IDCT) is decomposed into four 2-point IDCTs. The four 2-point IDCTs are implemented by four parallel-operating product-sum computing circuits. Each product-sum computing circuit comprises a single multiplying means and accomplishes computation of eight points in four clock cycles. Part of the multiplying means may be implemented by bit shift operation, and others by a semifixed multiplier. A two-dimensional 8.times.8 IDCT circuit is constructed which comprises three semifixed multipliers and one ordinary multiplier, and accomplishes IDCT computation of 8.times.8 points in 64 clock cycles.
摘要翻译： 8点逆离散余弦变换（IDCT）被分解成4个2点IDCT。四个2点IDCT由四个并行操作乘积和计算电路实现。每个乘积和计算电路包括单个乘法装置，并且在四个时钟周期内完成八个点的计算。乘法装置的一部分可以通过位移操作来实现，而另一些乘以半固定乘法器。构建了一个二维8x8 IDCT电路，它包括三个半定义乘法器和一个普通乘法器，并且在64个时钟周期内完成8×8点的IDCT计算。

9. 发明授权

US5642174A Scene change detecting device 失效
标题翻译：场景变化检测装置
公开(公告)号：US5642174A
公开(公告)日：1997-06-24
申请号：US697250
申请日：1996-08-21
申请人： Kimihiko Kazui , Eishi Morimatsu
发明人： Kimihiko Kazui , Eishi Morimatsu
IPC分类号： H04N19/50 , G06T9/00 , H04N19/102 , H04N19/142 , H04N19/176 , H04N19/189 , H04N19/196 , H04N19/42 , H04N19/423 , H04N19/44 , H04N19/46 , H04N19/503 , H04N19/70 , H04N19/87 , H04N19/91 , H04N7/32
CPC分类号： H04N19/00 , H04N19/142 , H04N19/159 , H04N19/172 , H04N19/176 , H04N19/48 , H04N19/61 , H04N19/87 , H04N19/70
摘要： A scene change detecting device of a relatively small circuit scale is capable of accurately detecting a scene change using data which have already been compressed and coded. The scene change detecting device has an extracting circuit for extracting frame type information, frame identification information, and block type information from a coded signal of a moving picture which has been processed by block-adaptive interframe predictive coding. The block type information is sent to a counter, and the frame type information and the frame identification information are sent to a frame estimating circuit. Based on the block type information, the counter counts macroblocks with respect to each of the types of predictive processes over one frame. The frame estimating circuit estimates a frame immediately following a scene change based on the counted number of macroblocks with respect to each of the types of predictive processes, the frame type information, and the frame identification information.
摘要翻译：具有相对小的电路规模的场景变化检测装置能够使用已经被压缩和编码的数据来精确地检测场景变化。场景变化检测装置具有提取电路，用于从已经通过块自适应帧间预测编码处理的运动图像的编码信号中提取帧类型信息，帧识别信息和块类型信息。块类型信息被发送到计数器，并且帧类型信息和帧识别信息被发送到帧估计电路。基于块类型信息，计数器对相对于一帧中的每种预测处理的宏块进行计数。帧估计电路基于相对于各种预测处理，帧类型信息和帧识别信息中的每一种的宏块的计数数来估计紧随场景变化之后的帧。

10. 发明申请

US20130044808A1 IMAGE ENCODING DEVICE AND IMAGE DECODING DEVICE 有权
标题翻译：图像编码装置和图像解码装置
公开(公告)号：US20130044808A1
公开(公告)日：2013-02-21
申请号：US13570566
申请日：2012-08-09
申请人： Akira Nakagawa , Kimihiko Kazui , Hidenobu Miyoshi , Junpei Koyama
发明人： Akira Nakagawa , Kimihiko Kazui , Hidenobu Miyoshi , Junpei Koyama
IPC分类号： H04N7/32
CPC分类号： H04N19/167 , H04N19/105 , H04N19/13 , H04N19/182 , H04N19/593
摘要： A encoding device includes a boundary pixel prediction value generation unit, boundary pixel prediction error estimation unit, and a quantized coefficient encoding unit. The boundary pixel prediction value generation unit generates a boundary pixel prediction value as a prediction value of a boundary pixel adjacent to an encoded block in the encoding block from a locally decoded image of a plurality of encoded blocks adjacent to the encoding block. The boundary pixel prediction error estimation unit generates boundary pixel prediction error estimation information from the boundary pixel prediction value and the encoding block prediction image with respect to the boundary pixel. The quantized coefficient encoding unit generates encoding block entropy encoded data from the quantized coefficients and the boundary pixel prediction error estimation information.
摘要翻译：编码装置包括边界像素预测值生成单元，边界像素预测误差估计单元和量化系数编码单元。边界像素预测值生成单元从与编码块相邻的多个编码块的局部解码图像生成边界像素预测值作为与编码块中的编码块相邻的边界像素的预测值。边界像素预测误差估计单元从边界像素预测值和编码块预测图像生成相对于边界像素的边界像素预测误差估计信息。量化系数编码单元从量化系数和边界像素预测误差估计信息生成编码块熵编码数据。

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