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1. 发明授权

US06456658B2 Brightness-variation compensation method and coding/decoding apparatus for moving pictures 失效
标题翻译：用于运动图像的亮度变化补偿方法和编码/解码装置
公开(公告)号：US06456658B2
公开(公告)日：2002-09-24
申请号：US09832451
申请日：2001-04-11
申请人： Kazuto Kamikura , Hiroshi Watanabe , Hirohisa Jozawa
发明人： Kazuto Kamikura , Hiroshi Watanabe , Hirohisa Jozawa
IPC分类号： H04N718
CPC分类号： H04N19/162 , H04N19/105 , H04N19/142 , H04N19/172 , H04N19/176 , H04N19/46 , H04N19/51 , H04N19/61
摘要： A moving image brightness variation compensation method for encoding digital moving images for transmission and storage, and for image processing when editing moving images, the moving image brightness variation compensation method comprising a step of compensating for overall brightness variations by correcting a luminance value x of each pixel according to the formula DC·x+DB, wherein DB is a parameter indicating a gain change and DC is a parameter indicating a contrast change, the parameters representing overall luminance changes between a reference image plane and an image plane being processed.
摘要翻译：一种运动图像亮度变化补偿方法，用于编码用于发送和存储的数字运动图像，以及用于编辑运动图像时的图像处理，所述运动图像亮度变化补偿方法包括以下步骤：通过校正每个像素，其中DB是表示增益变化的参数，DC是表示对比度变化的参数，表示正在处理的参考图像平面和图像平面之间的整体亮度变化的参数。

2. 发明授权

US07206346B2 Motion vector predictive encoding method, motion vector decoding method, predictive encoding apparatus and decoding apparatus, and storage media storing motion vector predictive encoding and decoding programs 有权
标题翻译：运动矢量预测编码方法，运动矢量解码方法，预测编码装置和解码装置以及存储运动矢量预测编码和解码程序的存储媒体
公开(公告)号：US07206346B2
公开(公告)日：2007-04-17
申请号：US10354663
申请日：2003-01-30
申请人： Atsushi Shimizu , Hirohisa Jozawa , Kazuto Kamikura , Hiroshi Watanabe , Atsushi Sagata , Seishi Takamura
发明人： Atsushi Shimizu , Hirohisa Jozawa , Kazuto Kamikura , Hiroshi Watanabe , Atsushi Sagata , Seishi Takamura
IPC分类号： H04N7/12 , H04B1/66
CPC分类号： H04N19/51 , H04N19/517 , H04N19/52 , H04N19/527 , H04N19/537
摘要： A motion vector predictive encoding method, a motion vector decoding method, a predictive encoding apparatus, a decoding apparatuses, and storage media storing motion vector predictive encoding and decoding programs are provided, thereby reducing the amount of generated code with respect to the motion vector, and improving the efficiency of the motion-vector prediction. If the motion-compensating mode of the target small block to be encoded is the global motion compensation, the encoding mode of an already-encoded small block is the interframe coding mode, and the motion-compensating mode of the already-encoded small block is the global motion compensation, then the motion vector of the translational motion model is determined for each pixel of the already-encoded small block, based on the global motion vector (steps S1–S5). Next, the representative motion vector is calculated as the predicted vector, based on the motion vector of each pixel of the already-encoded small block (step S6). Finally, the prediction error is calculated for each component of the motion vector and each prediction error is encoded (steps S7 and S8).
摘要翻译：提供了运动矢量预测编码方法，运动矢量解码方法，预测编码装置，解码装置和存储运动矢量预测编码和解码程序的存储介质，从而减少了相对于运动矢量产生的代码量，并提高运动矢量预测的效率。如果要编码的目标小块的运动补偿模式是全局运动补偿，则已经编码的小块的编码模式是帧间编码模式，并且已经编码的小块的运动补偿模式是全局运动补偿，则基于全局运动矢量（步骤S1至S5），为已经编码的小块的每个像素确定平移运动模型的运动矢量。接下来，基于已经编码的小块的每个像素的运动矢量，计算代表运动矢量作为预测矢量（步骤S6）。最后，针对运动矢量的每个分量计算预测误差，对每个预测误差进行编码（步骤S 7和S 8）。

3. 发明授权

US06473458B1 Method for encoding and decoding moving vector, encoder and decoder for moving vector, and recording medium stored with encoding and decoding programs for moving vector 有权
标题翻译：用于编码和解码移动矢量的方法，用于移动矢量的编码器和解码器，以及存储有用于移动矢量的编码和解码程序的记录介质
公开(公告)号：US06473458B1
公开(公告)日：2002-10-29
申请号：US09254275
申请日：1999-03-03
申请人： Atsushi Shimizu , Hirohisa Jozawa , Kazuto Kamikura , Hiroshi Watanabe , Atsushi Sagata
发明人： Atsushi Shimizu , Hirohisa Jozawa , Kazuto Kamikura , Hiroshi Watanabe , Atsushi Sagata
IPC分类号： H04N1102
CPC分类号： H04N19/517 , H04N19/51
摘要： Motion vector encoding and decoding methods, motion vector encoding and decoding apparatuses, and storage media storing motion vector encoding and decoding programs are provided, thereby reducing the amount of generated code with respect to the motion vector. First, the motion vector of a target block to be encoded is detected (step S1), and a prediction error vector is calculated (step S2). After the length component of the motion vector is calculated (step S3), the length component is variable-length-encoded (step S4). The length component is checked (step S5), and if the length component is not 0, the direction component is calculated (step S6). The table for encoding the direction component is selected according to the length component, and the direction component is encoded (step S7).
摘要翻译：提供运动矢量编码和解码方法，运动矢量编码和解码装置以及存储运动矢量编码和解码程序的存储介质，从而减少相对于运动矢量产生的代码量。首先，检测要编码的目标块的运动矢量（步骤S1），并计算预测误差矢量（步骤S2）。在计算运动矢量的长度分量之后（步骤S3），长度分量是可变长度编码的（步骤S4）。检查长度分量（步骤S5），如果长度分量不为0，则计算方向分量（步骤S6）。根据长度分量选择用于对方向分量进行编码的表，对方向分量进行编码（步骤S7）。

4. 发明授权

US06266370B1 Brightness-variation compensation method and coding/decoding apparatus for moving pictures 失效
标题翻译：用于运动图像的亮度变化补偿方法和编码/解码装置
公开(公告)号：US06266370B1
公开(公告)日：2001-07-24
申请号：US08921352
申请日：1997-08-29
申请人： Kazuto Kamikura , Hiroshi Watanabe , Hirohisa Jozawa
发明人： Kazuto Kamikura , Hiroshi Watanabe , Hirohisa Jozawa
IPC分类号： H04N718
CPC分类号： H04N19/162 , H04N19/105 , H04N19/142 , H04N19/172 , H04N19/176 , H04N19/46 , H04N19/51 , H04N19/61
摘要： A moving image brightness variation compensation method for encoding digital moving images for transmission and storage, and for image processing when editing moving images, the moving image brightness variation compensation method comprising a step of compensating for overall brightness variations by correcting a luminance value x of each pixel according to the formula DC·x+DB, wherein DB is a parameter indicating a gain change and DC is a parameter indicating a contrast change, the parameters representing overall luminance changes between a reference image plane and an image plane being processed.
摘要翻译：一种运动图像亮度变化补偿方法，用于编码用于发送和存储的数字运动图像，以及用于编辑运动图像时的图像处理，所述运动图像亮度变化补偿方法包括以下步骤：通过校正每个像素，其中DB是表示增益变化的参数，DC是表示对比度变化的参数，表示正在处理的参考图像平面和图像平面之间的整体亮度变化的参数。

5. 发明申请

US20070183505A1 Motion vector predictive encoding method, motion vector decoding method, predictive encoding apparatus and decoding apparatus, and storage media storing motion vector predictive encoding and decoding programs 审中-公开
公开(公告)号：US20070183505A1
公开(公告)日：2007-08-09
申请号：US11726971
申请日：2007-03-22
申请人： Atsushi Shimizu , Hirohisa Jozawa , Kazuto Kamikura , Hiroshi Watanabe , Atsushi Sagata , Seishi Takamura
发明人： Atsushi Shimizu , Hirohisa Jozawa , Kazuto Kamikura , Hiroshi Watanabe , Atsushi Sagata , Seishi Takamura
IPC分类号： H04N11/02 , H04B1/66
CPC分类号： H04N19/51 , H04N19/517 , H04N19/52 , H04N19/527 , H04N19/537
摘要： A motion vector predictive encoding method, a motion vector decoding method, a predictive encoding apparatus, a decoding apparatuses, and storage media storing motion vector predictive encoding and decoding programs are provided, thereby reducing the amount of generated code with respect to the motion vector, and improving the efficiency of the motion-vector prediction. If the motion-compensating mode of the target small block to be encoded is the global motion compensation, the encoding mode of an already-encoded small block is the interframe coding mode, and the motion-compensating mode of the already-encoded small block is the global motion compensation, then the motion vector of the translational motion model is determined for each pixel of the already-encoded small block, based on the global motion vector (steps S1-S5). Next, the representative motion vector is calculated as the predicted vector, based on the motion vector of each pixel of the already-encoded small block (step S6). Finally, the prediction error is calculated for each component of the motion vector and each prediction error is encoded (steps S7 and S8).

6. 发明授权

US06934331B2 Brightness-variation compensation method and coding/decoding apparatus for moving pictures 有权
标题翻译：用于运动图像的亮度变化补偿方法和编码/解码装置
公开(公告)号：US06934331B2
公开(公告)日：2005-08-23
申请号：US10213397
申请日：2002-08-05
申请人： Kazuto Kamikura , Hiroshi Watanabe , Hirohisa Jozawa
发明人： Kazuto Kamikura , Hiroshi Watanabe , Hirohisa Jozawa
IPC分类号： H04N7/26 , H04N7/50 , H04N7/18
CPC分类号： H04N19/162 , H04N19/105 , H04N19/142 , H04N19/172 , H04N19/176 , H04N19/46 , H04N19/51 , H04N19/61
摘要： A moving image brightness variation compensation method for encoding digital moving images for transmission and storage, and for image processing when editing moving images, the moving image brightness variation compensation method comprising a step of compensating for overall brightness variations by correcting a luminance value x of each pixel according to the formula DC·x+DB, wherein DB is a parameter indicating a gain change and DC is a parameter indicating a contrast change, the parameters representing overall luminance changes between a reference image plane and an image plane being processed.
摘要翻译：一种运动图像亮度变化补偿方法，用于编码用于发送和存储的数字运动图像，以及用于编辑运动图像时的图像处理，所述运动图像亮度变化补偿方法包括以下步骤：通过校正每个像素，其中D B是指示增益变化的参数，并且D C 是表示对比度变化的参数，表示正在处理的参考图像平面和图像平面之间的整体亮度变化的参数。

7. 发明授权

US06785331B1 Predictive encoding and decoding methods of video data 有权
标题翻译：视频数据的预测编码和解码方法
公开(公告)号：US06785331B1
公开(公告)日：2004-08-31
申请号：US09355362
申请日：1999-07-28
申请人： Hirohisa Jozawa , Atsushi Shimizu , Kazuto Kamikura , Hiroshi Watanabe
发明人： Hirohisa Jozawa , Atsushi Shimizu , Kazuto Kamikura , Hiroshi Watanabe
IPC分类号： H04N712
CPC分类号： H04L65/1043 , G06F1/1626 , G06F1/1639 , G06F21/305 , G06F21/6209 , G06F21/74 , G06F21/88 , G06F2221/2105 , G06F2221/2115 , G11B20/10009 , G11B20/10425 , G11B20/22 , H03L7/091 , H04B7/2628 , H04B10/25754 , H04J13/0077 , H04J13/16 , H04L1/0066 , H04L1/0068 , H04L9/085 , H04L9/304 , H04L12/4641 , H04L25/03038 , H04L25/4902 , H04L25/4904 , H04L25/497 , H04L27/156 , H04L29/06027 , H04L29/12471 , H04L41/06 , H04L43/0829 , H04L47/15 , H04L47/70 , H04L47/72 , H04L47/745 , H04L47/765 , H04L47/822 , H04L47/824 , H04L51/04 , H04L51/28 , H04L51/38 , H04L61/2553 , H04L65/1006 , H04L65/1016 , H04M1/72533 , H04M3/42221 , H04M7/1295 , H04N1/00957 , H04N1/32106 , H04N1/40 , H04N5/2251 , H04N5/2257 , H04N5/38 , H04N5/4401 , H04N5/4448 , H04N5/445 , H04N5/45 , H04N5/46 , H04N5/64 , H04N5/66 , H04N5/76 , H04N5/775 , H04N5/85 , H04N5/907 , H04N7/0112 , H04N7/0122 , H04N7/163 , H04N7/17327 , H04N9/3129 , H04N9/642 , H04N9/7925 , H04N9/8042 , H04N19/109 , H04N19/139 , H04N19/51 , H04N19/517 , H04N19/527 , H04N19/625 , H04N19/70 , H04N19/91 , H04N21/2543 , H04N21/4181 , H04N21/433 , H04N21/4623 , H04N21/47211 , H04N21/6175 , H04N21/6187 , H04N21/6582 , H04N2201/0094 , H04N2201/3212 , H04N2201/3222 , H04N2201/3274 , H04W4/12 , H04W4/14 , H04W8/245 , H04W8/26 , H04W28/00 , H04W28/18 , H04W28/26 , H04W40/00 , H04W52/30 , H04W72/042 , H04W76/12 , H04W88/085 , H04W88/16 , Y10S370/906 , Y10S370/907 , Y10S707/99943
摘要： Video data predictive encoding methods using the two kinds of prediction modes, the global and local motion compensation modes, are provided, by which unnecessary MCSEL is reduced as much as possible, and the data compression efficiency is improved. In the encoder, after a code word MCBPC indicating the macroblock type and presence/absence of the DCT coefficient of each of two blocks for sending color-difference signals, a code word MCSEL indicating which motion-compensating mode, global or local, was adopted for the prediction of the current macroblock is output if the macroblock was not intraframe-encoded.
摘要翻译：提供了使用两种预测模式（全局和局部运动补偿模式）的视频数据预测编码方法，由此尽可能地减少了不必要的MCSEL，并且提高了数据压缩效率。在编码器中，在指示宏块类型的代码字MCBPC和用于发送色差信号的两个块中的每一个的DCT系数的存在/不存在之后，指示采用全局或局部的运动补偿模式的代码字MCSEL 如果宏块未被帧内编码，则输出当前宏块的预测。

8. 发明授权

US5311310A High efficiency coder and method employing overlapped motion compensation and perfect reconstruction filter banks 失效
标题翻译：高效编码器和采用重叠运动补偿和完善重构滤波器组的方法
公开(公告)号：US5311310A
公开(公告)日：1994-05-10
申请号：US984041
申请日：1992-12-01
申请人： Hirohisa Jozawa , Sharad Singhal , Hiroshi Watanabe
发明人： Hirohisa Jozawa , Sharad Singhal , Hiroshi Watanabe
IPC分类号： H04N19/50 , G06T9/00 , H04N19/103 , H04N19/136 , H04N19/137 , H04N19/176 , H04N19/196 , H04N19/46 , H04N19/503 , H04N19/51 , H04N19/61 , H04N19/635 , H04N19/70 , H04N19/80 , H04N19/86 , H04N19/91 , H04N7/133 , H04N7/137
CPC分类号： H04N19/86 , H04N19/51 , H04N19/527 , H04N19/60 , H04N19/61
摘要： Our overlapped motion compensation unit and method, which is a motion compensation mechanism employing an overlapped block structure, minimize blocking effects prevalent in convention motion compensation. Our overlapped motion compensation unit and method are implemented on the basis of analysis/synthesis filter banks employed for coding resulting in compatibility between the block structure used for motion compensation and for coding. Our encoder, decoder, and coding method employ our novel overlapped motion compensation technique in combination with analysis/synthesis filter banks such as LOT to achieve improvements in coding efficiency and image quality above that of conventional image coders and coding methods. Specifically, in our encoder, decoder, and coding method, blocking effects prevalent in coders employing conventional motion compensation techniques and discrete cosine transforms are minimized and coding efficiency and image quality are maximized.
摘要翻译：我们的重叠运动补偿单元和方法是使用重叠块结构的运动补偿机制，使在常规运动补偿中普遍存在的阻塞效应最小化。我们的重叠运动补偿单元和方法是在用于编码的分析/合成滤波器组的基础上实现的，导致用于运动补偿的块结构和编码之间的兼容性。我们的编码器，解码器和编码方法采用我们的新型重叠运动补偿技术与诸如LOT的分析/合成滤波器组相结合，以实现高于常规图像编码器和编码方法的编码效率和图像质量的改进。具体地说，在我们的编码器，解码器和编码方法中，使用常规运动补偿技术和离散余弦变换的编码器中流行的阻塞效应最小化，编码效率和图像质量最大化。

9. 发明申请

US20140112391A1 METHOD AND APPARATUS FOR ENCODING VIDEO, METHOD AND APPARATUS FOR DECODING VIDEO, AND PROGRAMS THEREFOR 审中-公开
标题翻译：用于编码视频的方法和装置，用于解码视频的方法和装置及其程序
公开(公告)号：US20140112391A1
公开(公告)日：2014-04-24
申请号：US14123054
申请日：2012-06-22
申请人： Shohei Matsuo , Yukihiro Bandoh , Seishi Takamura , Hirohisa Jozawa
发明人： Shohei Matsuo , Yukihiro Bandoh , Seishi Takamura , Hirohisa Jozawa
IPC分类号： H04N19/587 , H04N19/51
CPC分类号： H04N19/182 , H04N19/117 , H04N19/139 , H04N19/172 , H04N19/523 , H04N19/82
摘要： The prediction error energy in inter-frame prediction with motion compensation is reduced and the coding efficiency is improved. A video encoding method using fractional-accuracy motion compensation includes: a step of performing a motion search to acquire a motion vector; a step of calculating reference probabilities at fractional-pixel positions designated by the acquired motion vector; a step of dividing interpolation positions which are fractional-pixel positions into multiple groups based on the calculated reference probabilities; a step of selecting, for each of the groups of the interpolation positions, interpolation filter coefficients to be used for generating an interpolated prediction picture from among multiple interpolation filter coefficient candidates; a step of generating the interpolated prediction picture using the selected interpolation filter coefficients and performing encoding with the fractional-accuracy motion compensation based on the interpolated prediction picture, for each of the groups of the interpolation positions; and a step of encoding information indicating grouping of the interpolation positions and information indicating interpolation filter coefficients to be used for each of the groups of the interpolation positions.
摘要翻译：运动补偿的帧间预测中的预测误差能量降低，编码效率提高。使用分数精度运动补偿的视频编码方法包括：执行运动搜索以获取运动矢量的步骤; 计算由所获取的运动矢量指定的分数像素位置处的参考概率的步骤; 基于所计算的参考概率将作为分数像素位置的插值位置分割成多个组的步骤; 对于每个所述插补位置组，从多个内插滤波器系数候选中选择用于生成内插预测图像的内插滤波器系数的步骤; 使用所选择的内插滤波器系数生成内插预测图像并基于内插预测图像对于每个插值位置的每一组执行基于分数精度运动补偿的编码的步骤; 以及编码指示内插位置分组的信息的步骤，以及指示要用于插值位置的组中的每一组的内插滤波器系数的信息的步骤。

10. 发明申请

US20140105308A1 METHOD AND APPARATUS FOR ENCODING VIDEO, METHOD AND APPARATUS FOR DECODING VIDEO, AND PROGRAMS THEREFOR 有权
标题翻译：用于编码视频的方法和装置，用于解码视频的方法和装置及其程序
公开(公告)号：US20140105308A1
公开(公告)日：2014-04-17
申请号：US14125463
申请日：2012-06-22
申请人： Shohei Matsuo , Yukihiro Bandoh , Seishi Takamura , Hirohisa Jozawa
发明人： Shohei Matsuo , Yukihiro Bandoh , Seishi Takamura , Hirohisa Jozawa
IPC分类号： H04N19/593
CPC分类号： H04N19/593 , H04N19/61 , H04N19/82
摘要： The prediction error energy in inter-frame prediction with motion compensation is reduced and the coding efficiency is improved. A video encoding method using fractional-accuracy motion compensation includes: a step of generating multiple weighted filter coefficients from multiple interpolation filter sets using weight parameters which designate weight values of interpolation filter coefficients; a step of selecting weighted filter coefficients which minimize prediction error energy in the fractional-accuracy motion compensation from among the weighted filter coefficients; a step of interpolating fractional-accuracy pixels for a reference picture by application of an interpolation filter with the selected weighted filter coefficients and encoding an input picture with the fractional-accuracy motion compensation; and a step of encoding the weight parameters used for generating the selected weighted filter coefficients and the interpolation filter coefficients and adding encoded weight parameters and encoded interpolation filter coefficients to an encoded bitstream.
摘要翻译：运动补偿的帧间预测中的预测误差能量降低，编码效率提高。使用分数精度运动补偿的视频编码方法包括：使用表示内插滤波器系数的权重值的权重参数从多个内插滤波器组生成多个加权滤波器系数的步骤; 从所述加权滤波器系数中选择使所述分数精度运动补偿中的预测误差能量最小化的加权滤波器系数的步骤; 通过使用具有所选择的加权滤波器系数的内插滤波器对参考图像内插分数精度像素并对具有分数精度运动补偿的输入图像进行编码的步骤; 以及编码用于生成所选择的加权滤波器系数和内插滤波器系数的加权参数并将编码的加权参数和编码的内插滤波器系数加到经编码比特流的步骤。

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