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1. 发明授权

US09386322B2 Scalable video encoding method and decoding method, apparatuses therefor, programs therefor, and storage media which store the programs 有权
标题翻译：可扩展视频编码方法和解码方法，其设备，程序和存储程序的存储介质
公开(公告)号：US09386322B2
公开(公告)日：2016-07-05
申请号：US12665884
申请日：2008-07-01
申请人： Kazuya Hayase , Yukihiro Bandoh , Seishi Takamura , Kazuto Kamikura , Yoshiyuki Yashima
发明人： Kazuya Hayase , Yukihiro Bandoh , Seishi Takamura , Kazuto Kamikura , Yoshiyuki Yashima
IPC分类号： H04N19/30 , H04N19/137 , H04N19/59 , H04N19/80
CPC分类号： H04N19/59 , H04N19/137 , H04N19/30 , H04N19/33 , H04N19/577 , H04N19/80
摘要： A scalable video encoding method of performing encoding by predicting an upper-layer signal having a relatively high spatial resolution by means of interpolation using an immediately-lower-layer signal having a relatively low spatial resolution. The method computes a first weighting coefficient for each image area of a predetermined unit size in a search for estimating a motion between an encoding target image area in an upper layer and a reference image area, where the first weighting coefficient is computed based on a brightness variation between an image area, which belongs to an immediately-lower layer and has the same spatial position as the encoding target image area, and the reference image area; and performs a motion estimation using a signal which is obtained by correcting a decoded signal of the reference image area by the first weighting coefficient and functions as an estimated signal in the motion estimation, so as to compute a motion vector. Then the method computes a second weighting coefficient based on a brightness variation between a reference image area indicated by the motion vector and the image area which belongs to the immediately-lower layer and has the same spatial position as the encoding target image area; and determines a signal, which is obtained by correcting a decoded signal of the reference image area by using the second weighting coefficient, to be a compensated signal in motion compensation, which functions as a predicted signal of the encoding target image area.
摘要翻译：一种可分级视频编码方法，其通过使用具有相对低的空间分辨率的立即下层信号通过内插预测具有相对高的空间分辨率的上层信号来执行编码。该方法在搜索中估计上层编码对象图像区域与基准图像区域之间的运动的基础上计算第一加权系数，计算出预定单位尺寸的每个图像区域的第一加权系数，其中基于亮度计算第一加权系数属于立即下层并且具有与编码对象图像区域相同的空间位置的图像区域与参考图像区域之间的变化; 并且使用通过将参考图像区域的解码信号校正第一加权系数获得的信号并且在运动估计中用作估计信号来执行运动估计，以便计算运动矢量。然后，该方法基于由运动矢量表示的参考图像区域和属于紧邻下层的图像区域之间的亮度变化并且具有与编码对象图像区域相同的空间位置来计算第二加权系数; 并且将通过使用第二加权系数校正参考图像区域的解码信号而获得的信号确定为作为编码对象图像区域的预测信号的运动补偿补偿信号。

2. 发明授权

US08548064B2 Video encoding method and decoding method by using selected parallax for parallax compensation, apparatuses therefor, programs therefor, and storage media for storing the programs 有权
标题翻译：通过使用视差补偿的选择视差的视频编码方法和解码方法，其装置，其程序和用于存储程序的存储介质
公开(公告)号：US08548064B2
公开(公告)日：2013-10-01
申请号：US12087040
申请日：2006-12-29
申请人： Masaki Kitahara , Hideaki Kimata , Shinya Shimizu , Kazuto Kamikura , Yoshiyuki Yashima , Masayuki Tanimoto , Toshiaki Fujii , Kenji Yamamoto
发明人： Masaki Kitahara , Hideaki Kimata , Shinya Shimizu , Kazuto Kamikura , Yoshiyuki Yashima , Masayuki Tanimoto , Toshiaki Fujii , Kenji Yamamoto
IPC分类号： H04N7/12
CPC分类号： H04N19/147 , H04N13/122 , H04N19/19 , H04N19/503 , H04N19/597
摘要： A video encoding method for encoding video images as a single video image by using parallax compensation which performs prediction by using parallax between the video images, and a corresponding decoding method. The number of parameters as parallax data used for the parallax compensation is selected and set for each reference image. Data of the set number of parameters is encoded, and parallax data in accordance with the number of parameters is encoded. During decoding, parallax-parameter number data, which is included in encoded data and designates the number of parameters as parallax data for each reference image, is decoded, and parallax data in accordance with the number of parameters is decoded, where the parallax data is included in the encoded data.
摘要翻译：一种视频编码方法，用于通过使用通过使用视频图像之间的视差执行预测的视差补偿来将视频图像编码为单个视频图像，以及相应的解码方法。为每个参考图像选择并设置用于视差补偿的视差信息的参数的数量。对设定参数数量的数据进行编码，并且对根据参数数量的视差数据进行编码。在解码期间，解码编码数据中包含的视差参数号码数据，并指定作为每个参照图像的视差数据的参数个数，根据参数数量对视差数据进行解码，包含在编码数据中。

3. 发明授权

US08451894B2 Video encoding method and decoding method, apparatuses therefor, programs therefor, and storage media for storing the programs by using parallax compensation 有权
标题翻译：视频编码方法和解码方法，其装置，用于其的程序，以及通过使用视差补偿来存储程序的存储介质
公开(公告)号：US08451894B2
公开(公告)日：2013-05-28
申请号：US12086709
申请日：2007-01-04
申请人： Masayuki Tanimoto , Toshiaki Fujii , Kenji Yamamoto , Masaki Kitahara , Hideaki Kimata , Shinya Shimizu , Kazuto Kamikura , Yoshiyuki Yashima
发明人： Masayuki Tanimoto , Toshiaki Fujii , Kenji Yamamoto , Masaki Kitahara , Hideaki Kimata , Shinya Shimizu , Kazuto Kamikura , Yoshiyuki Yashima
IPC分类号： H04N7/12 , H04N7/50
CPC分类号： H04N19/64 , H04N19/105 , H04N19/147 , H04N19/176 , H04N19/597 , H04N19/61
摘要： By using parallax compensation which performs prediction by using parallax between video images, the video images are encoded as a single video image. Reference parallax for a target image to be encoded is set, wherein the reference parallax is estimated using a reference image; area division in an image frame is set; parallax displacement for each divided area is set, wherein the parallax displacement is the difference between the reference parallax and parallax for the parallax compensation; data of the area division is encoded; and data for indicating the parallax displacement is encoded. During decoding, reference parallax for a target image to be decoded is set, wherein it is estimated using a reference image; data for indicating area division, which is included in encoded data, is decoded; and data of parallax displacement, which is included in the encoded data, is decoded for each area indicated by the area division data.
摘要翻译：通过使用通过使用视频图像之间的视差执行预测的视差补偿，将视频图像编码为单个视频图像。设置要编码的目标图像的参考视差，其中使用参考图像来估计参考视差; 设置图像帧中的区域划分; 设定每个分割区域的视差位移，其中视差位移是视差补偿的参考视差和视差之差; 区域划分的数据被编码; 并且用于指示视差位移的数据被编码。在解码期间，设置要解码的目标图像的参考视差，其中使用参考图像来估计; 包含在编码数据中的用于指示区域划分的数据被解码; 并且包括在编码数据中的视差位移的数据对于由区域划分数据指示的每个区域被解码。

4. 发明申请

US20130058584A1 IMAGE ENCODING AND DECODING FOR MULTI-VIEWPOINT IMAGES 审中-公开
标题翻译：多视点图像的图像编码和解码
公开(公告)号：US20130058584A1
公开(公告)日：2013-03-07
申请号：US13610948
申请日：2012-09-12
申请人： Shinya SHIMIZU , Masaki KITAHARA , Kazuto KAMIKURA , Yoshiyuki YASHIMA
发明人： Shinya SHIMIZU , Masaki KITAHARA , Kazuto KAMIKURA , Yoshiyuki YASHIMA
IPC分类号： G06K9/36
CPC分类号： H04N19/527 , H04N19/147 , H04N19/19 , H04N19/523 , H04N19/597
摘要： An image encoding method includes determining corresponding points on an encoding target image, which correspond to pixels on a reference image, based on distance from a camera of the reference image to an object, and positional relationship between cameras; computing a parallax vector from each pixel position to the corresponding point in pixel space; computing a target predictive vector having the same start as the parallax vector and components obtained by rounding off components of the parallax vector; computing a target reference vector having the same start as the parallax vector and the same size and direction as a differential vector between the target predictive vector and the parallax vector; and setting a predicted value of a pixel on the encoding target image, which is indicated by the target predictive vector, to a value of a pixel on the reference image, which is indicated by the target reference vector.
摘要翻译：图像编码方法包括基于从参考图像的相机到对象的距离以及相机之间的位置关系来确定与参考图像上的像素相对应的编码对象图像上的对应点; 计算从每个像素位置到像素空间中对应点的视差矢量; 计算具有与视差矢量相同的开始的目标预测矢量，以及通过舍入视差矢量的分量而获得的分量; 计算具有与视差矢量相同的开始和与目标预测矢量和视差矢量之间的差分矢量相同的大小和方向的目标参考矢量; 以及将由目标预测矢量表示的编码对象图像上的像素的预测值设定为由目标参照矢量表示的参照图像上的像素的值。

5. 发明授权

US08204118B2 Video encoding method and decoding method, apparatuses therefor, programs therefor, and storage media which store the programs 有权
标题翻译：视频编码方法和解码方法，其设备，程序和存储程序的存储介质
公开(公告)号：US08204118B2
公开(公告)日：2012-06-19
申请号：US12665890
申请日：2008-06-23
申请人： Shinya Shimizu , Hideaki Kimata , Kazuto Kamikura , Yoshiyuki Yashima
发明人： Shinya Shimizu , Hideaki Kimata , Kazuto Kamikura , Yoshiyuki Yashima
IPC分类号： H04N7/12
CPC分类号： H04N19/597 , H04N19/105 , H04N19/12 , H04N19/134 , H04N19/172 , H04N19/176
摘要： A video encoding apparatus used in encoding of a multi-viewpoint image. The apparatus generates a synthetic image for a camera used for obtaining an encoding target image, by using an already-encoded reference camera image having a viewpoint different from the viewpoint of the camera used for obtaining the encoding target image, and disparity information between the reference camera image and the encoding target image, thereby encoding the encoding target image. A predicted image for a differential image between an input image of an encoding target area to be encoded and the synthetic image generated therefor is generated, and a predicted image for the encoding target area, which is represented by the sum of the predicted differential image and the synthetic image for the encoding target area, is generated. A prediction residual represented by a difference between the predicted image for the encoding target area and the encoding target image of the encoding target area is encoded.
摘要翻译：一种用于多视点图像编码的视频编码装置。该装置通过使用具有与用于获得编码对象图像的摄像机的视点不同的视点的已经编码的参照摄像机图像，生成用于获取编码对象图像的摄像机的合成图像，以及参考摄像机图像和编码对象图像，由此对编码对象图像进行编码。生成要编码的编码对象区域的输入图像与生成的编码对象区域的合成图像之间的差分图像的预测图像，并且生成用于编码对象区域的预测图像，该预测图像由预测差分图像和生成编码对象区域的合成图像。对编码对象区域的预测图像与编码对象区域的编码对象图像之间的差异表示的预测残差进行编码。

6. 发明申请

US20100208991A1 IMAGE GENERATION METHOD AND APPARATUS, PROGRAM THEREFOR, AND STORAGE MEDIUM WHICH STORES THE PROGRAM 有权
标题翻译：图像生成方法和装置，程序及存储程序的存储介质
公开(公告)号：US20100208991A1
公开(公告)日：2010-08-19
申请号：US12682030
申请日：2008-10-09
申请人： Hideaki Kimata , Shinya Shimizu , Kazuto Kamikura , Yoshiyuki Yashima
发明人： Hideaki Kimata , Shinya Shimizu , Kazuto Kamikura , Yoshiyuki Yashima
IPC分类号： G06K9/00
CPC分类号： G06T5/50 , G06T15/205 , G06T2207/10016 , G06T2207/10024 , G06T2207/20221 , H04N1/6055
摘要： An image generation method for generating image information of a color signal Y of an image A by using a color signal X of image A, and color signal X and color signal Y of an image B. The presence or absence of a point in color signal X of image B corresponding to each pixel position of color signal X of image A, and the position of the relevant corresponding point are estimated. To each estimated pixel position in color signal Y of image A, image information of the corresponding position in the second color signal Y of image B is assigned. Color signal Y at a pixel position in image A for which it is estimated that there is no corresponding point is generated by using the image information of color signal Y assigned to pixels having a corresponding point.
摘要翻译：用于通过使用图像A的颜色信号X以及图像B的颜色信号X和颜色信号Y来生成图像A的颜色信号Y的图像信息的图像生成方法。存在或不存在颜色信号点对应于图像A的颜色信号X的每个像素位置的图像B的X和相关对应点的位置被估计。对于图像A的颜色信号Y中的每个估计像素位置，分配图像B的第二颜色信号Y中的对应位置的图像信息。通过使用分配给具有对应点的像素的颜色信号Y的图像信息来生成估计没有对应点的图像A中的像素位置处的颜色信号Y。

7. 发明申请

US20100086222A1 IMAGE ENCODING METHOD AND DECODING METHOD, APPARATUSES THEREFOR, PROGRAMS THEREFOR, AND STORAGE MEDIA FOR STORING THE PROGRAMS 有权
标题翻译：图像编码方法和解码方法，其设备，其程序和存储程序的存储介质
公开(公告)号：US20100086222A1
公开(公告)日：2010-04-08
申请号：US12441234
申请日：2007-09-18
申请人： Shinya Shimizu , Masaki Kitahara , Kazuto Kamikura , Yoshiyuki Yashima
发明人： Shinya Shimizu , Masaki Kitahara , Kazuto Kamikura , Yoshiyuki Yashima
IPC分类号： G06K9/36
CPC分类号： H04N19/103 , H04N19/147 , H04N19/176 , H04N19/52 , H04N19/597 , H04N19/61
摘要： An image encoding method includes determining and encoding global parallax data which is probably correct parallax data in consideration of the Epipolar geometry constraint between a camera of a standard viewpoint, which is selected from the entire multi-viewpoint images, and images obtained by all the other viewpoints; generating base parallax data for each camera as a viewpoint other than the standard viewpoint, where the base parallax data is probably correct parallax data in consideration of the Epipolar geometry constraint between the image of the relevant camera and the images of all the other cameras based on the global parallax data and the camera parameters; determining and encoding correction parallax data used for correcting the base parallax data, so as to indicate parallax data between the image of the relevant camera and an already-encoded reference viewpoint image used for parallax compensation; and encoding the image of the relevant camera by using parallax data obtained by correcting the base parallax data by means of the correction parallax data.
摘要翻译：图像编码方法包括：考虑到从整个多视点图像中选择的标准视点的相机之间的双极几何约束，以及所有其他图像获得的图像，确定和编码可能是正确的视差数据的全局视差数据观点; 生成基准视差数据作为除了标准视点以外的视点的基准视差数据，其中考虑到相机的图像和所有其它相机的图像之间的对极几何约束，基准视差数据可能是正确的视差信息，基于全局视差数据和摄像机参数; 确定和编码用于校正基准视差数据的校正视差数据，以便指示相关摄像机的图像与用于视差补偿的已经编码的参考视点图像之间的视差信息; 并且通过使用通过校正视差数据校正基准视差数据而获得的视差信息来对相关相机的图像进行编码。

8. 发明申请

US20070098068A1 Image encoding device, image decoding device, image encoding method, image decoding method, image encoding program, image decoding program, recording medium recording image encoding program, recording medium recording image decoding program 有权
标题翻译：图像编码装置，图像解码装置，图像编码方法，图像解码方法，图像编码程序，图像解码程序，记录介质记录图像编码程序，记录介质记录图像解码程序
公开(公告)号：US20070098068A1
公开(公告)日：2007-05-03
申请号：US10559903
申请日：2004-07-22
申请人： Hideaki Kimata , Masaki Kitahara , Kazuto Kamikura
发明人： Hideaki Kimata , Masaki Kitahara , Kazuto Kamikura
IPC分类号： H04N7/12
CPC分类号： H04N19/136 , H04N19/105 , H04N19/172 , H04N19/176 , H04N19/423 , H04N19/46 , H04N19/503
摘要： In order to make it possible to obtain the correct decoded image even in the case of not decoding a particular frame of the encoded data and improve the coding efficiency, the predicted image production unit 103 selects the image data from the image data of a plurality of frames in the reference image memory 107 which are encoded in the past, of the i-th (1≦i≦j) category, for the current frame which is classified as the j-th category by the image classifying unit 102, and produces the predicted image. The difference encoding unit 104 encodes a difference between the image data of the current frame and the predicted image. Also, the current category encoding unit 106 encodes the category number of the current frame, and the reference image specifying data encoding unit 105 encodes the reference image specifying data which specifies the image data selected from the reference image memory 107.
摘要翻译：为了即使在不对编码数据的特定帧进行解码并提高编码效率的情况下也可以获得正确的解码图像，预测图像生成单元103从多个图像数据的图像数据中选择图像数据对于由图像分类单元102分类为第j个类别的当前帧，过去编码的参考图像存储器107中的第i（1 <= i <= j）个类别的帧，并产生预测图像。差编码单元104对当前帧的图像数据和预测图像之间的差进行编码。此外，当前类别编码单元106对当前帧的类别编号进行编码，并且参考图像指定数据编码单元105对指定从参考图像存储器107中选择的图像数据的参考图像指定数据进行编码。

9. 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）。

10. 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）。

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