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1. 发明授权

EP2648409B1 QUANTIZATION CONTROL DEVICE AND METHOD, AND QUANTIZATION CONTROL PROGRAM 有权
标题翻译：量化控制装置和方法以及量化控制程序
公开(公告)号：EP2648409B1
公开(公告)日：2016-08-17
申请号：EP12754501.0
申请日：2012-03-05
申请人： Nippon Telegraph And Telephone Corporation
发明人： KITAHARA, Masaki , SHIMIZU, Atsushi , ONO, Naoki , KYOCHI, Seisuke
IPC分类号： H04N19/196 , H04N19/14 , H04N19/124 , H04N19/593
CPC分类号： H04N19/196 , H04N19/124 , H04N19/14 , H04N19/593
摘要： A quantization control apparatus provided in a video encoding apparatus which utilizes intra slices. The quantization control apparatus includes a similarity computation device that computes similarity between an intra slice region of an encoding target picture and an intra slice region of each of previously-encoded pictures, where the similarity is an index determined such that the closer the images of the two different intra slices, the higher the similarity; a picture selection device that selects a picture having the highest similarity from among the previously-encoded pictures, based on the similarity computed by the similarity computation device; and a quantization step determination device that determines a quantization step used for encoding the encoding target picture, based on encoding information for the picture selected by the picture selection device.

2. 发明公开

EP1971154A1 VIDEO ENCODING METHOD, DECODING METHOD, DEVICE THEREOF, PROGRAM THEREOF, AND STORAGE MEDIUM CONTAINS THE PROGRAM 审中-公开
标题翻译：视频编码方法和-DEKODIERUNGSVERFAHREN，与计划及其装置，及其程序和存储介质
公开(公告)号：EP1971154A1
公开(公告)日：2008-09-17
申请号：EP06843675.7
申请日：2006-12-29
申请人： Nippon Telegraph and Telephone Corporation , National University Corporation Nagoya University
发明人： KITAHARA, Masaki , KIMATA, Hideaki , SHIMIZU, Shinya , KAMIKURA, Kazuto , YASHIMA, Yoshiyuki , TANIMOTO, Masayuki , FUJII, Toshiaki , YAMAMOTO, Kenji
IPC分类号： H04N7/32
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：用于通过使用视差补偿，其通过使用多个视频间的视差进行预测，并且相应的解码方法进行编码的视频图像作为一个单一的视频图象的视频编码方法。的参数作为用于视差补偿的视差信息的数量被选择，并且针对每个参考图像设置。的参数设定次数的数据被编码，并与参数的数量雅舞蹈视差信息进行编码。在解码过程中被包括在编码数据中，并且指定的参数作为各参考图像的视差信息的数量，视差参数数量信息，全部被解码，并在与参数的数量雅舞蹈视差信息进行解码，其中，所述视差信息是包括在编码数据。

3. 发明公开

EP4270951A2 BLOCK SIZE DETERMINATION METHOD, VIDEO ENCODING DEVICE, AND PROGRAM 审中-实审
公开(公告)号：EP4270951A2
公开(公告)日：2023-11-01
申请号：EP23196969.2
申请日：2014-03-18
申请人： Nippon Telegraph And Telephone Corporation
发明人： KUDO, Shinobu , KITAHARA, Masaki , SHIMIZU, Atsushi , FUJII, Hiroshi , WATANABE, Mayuko
IPC分类号： H04N19/187
摘要： The computational complexity when a block configuration in an encoding target region is determined is reduced while the degradation of coding efficiency is suppressed. A video encoding apparatus includes a block selecting unit which selects each of blocks obtained by recursively dividing an encoding target block as a target block in a predetermined sequence, a block size acquiring unit which acquires the smallest block size in an adjacent block for the selected target block, an evaluation value calculating unit which calculates an evaluation value of the target block if a block size of the target block matches any one of the acquired block size, the block size one level higher than the acquired block size, and the block size one level lower than the acquired block size, and a block configuration determining unit which determines a combination of the blocks constituting the region within the encoding target block based on the evaluation value.

4. 发明公开

EP3026915A1 IMAGE ENCODING METHOD, IMAGE ENCODING DEVICE, AND IMAGE ENCODING PROGRAM 有权
标题翻译：图像编码方法，图像编码装置和图象编码程序
公开(公告)号：EP3026915A1
公开(公告)日：2016-06-01
申请号：EP14829177.6
申请日：2014-07-22
申请人： Nippon Telegraph and Telephone Corporation
发明人： WATANABE, Mayuko , KITAHARA, Masaki , SHIMIZU, Atsushi
IPC分类号： H04N19/593
CPC分类号： H04N19/11 , H04N19/119 , H04N19/132 , H04N19/147 , H04N19/176 , H04N19/436
摘要： Provided is an image encoding device that can reduce the amount of computation entailed in intra-prediction in an encoding optimization process. The image encoding device is provided with: a reference pixel generation unit for generating reference pixels from pixels of an original image and prediction pixels of nearby pixels, with respect to the intra-prediction direction; a pseudo intra-prediction pixel generation unit for generating pseudo intra-prediction pixels from the reference pixels and the intra-prediction direction; an encoding cost calculation unit for calculating an encoding cost for the intra-prediction direction, from errors of the pseudo intra-prediction pixels and the pixels of the original image, and the quantity of code generated during the generation of the pseudo intra-prediction pixels; and an intra-prediction direction setting unit for setting, as the optimal intra-prediction direction, the intra-prediction direction that corresponds to the lowest encoding cost from among the encoding costs.

5. 发明授权

EP3026915B1 IMAGE ENCODING METHOD, IMAGE ENCODING DEVICE, AND IMAGE ENCODING PROGRAM 有权
公开(公告)号：EP3026915B1
公开(公告)日：2018-12-26
申请号：EP14829177.6
申请日：2014-07-22
申请人： Nippon Telegraph and Telephone Corporation
发明人： WATANABE, Mayuko , KITAHARA, Masaki , SHIMIZU, Atsushi
IPC分类号： H04N19/593 , H04N19/436 , H04N19/176 , H04N19/147 , H04N19/11 , H04N19/132
CPC分类号： H04N19/11 , H04N19/119 , H04N19/132 , H04N19/147 , H04N19/176 , H04N19/436
摘要： Provided is an image encoding device that can reduce the amount of computation entailed in intra-prediction in an encoding optimization process. The image encoding device is provided with: a reference pixel generation unit for generating reference pixels from pixels of an original image and prediction pixels of nearby pixels, with respect to the intra-prediction direction; a pseudo intra-prediction pixel generation unit for generating pseudo intra-prediction pixels from the reference pixels and the intra-prediction direction; an encoding cost calculation unit for calculating an encoding cost for the intra-prediction direction, from errors of the pseudo intra-prediction pixels and the pixels of the original image, and the quantity of code generated during the generation of the pseudo intra-prediction pixels; and an intra-prediction direction setting unit for setting, as the optimal intra-prediction direction, the intra-prediction direction that corresponds to the lowest encoding cost from among the encoding costs.

6. 发明授权

EP2099226B1 VIDEO ENCODING METHOD, DECODING METHOD, DEVICE THEREOF, PROGRAM THEREOF, AND STORAGE MEDIUM CONTAINING THE PROGRAM 有权
标题翻译：视频编码方法和-DEKODIERUNGSVERFAHREN，与计划及其装置，及其程序和存储介质
公开(公告)号：EP2099226B1
公开(公告)日：2015-01-21
申请号：EP07860170.5
申请日：2007-12-26
申请人： Nippon Telegraph and Telephone Corporation
发明人： SHIMIZU, Shinya , KITAHARA, Masaki , KAMIKURA, Kazuto , YASHIMA, Yoshiyuki
IPC分类号： H04N19/597
CPC分类号： H04N19/103 , H04N19/146 , H04N19/147 , H04N19/176 , H04N19/182 , H04N19/19 , H04N19/573 , H04N19/597 , H04N19/61

7. 发明公开

EP2066132A1 IMAGE ENCODING AND DECODING METHODS, THEIR DEVICES, IMAGE DECODING DEVICE, THEIR PROGRAMS, AND STORAGE MEDIUM IN WHICH PROGRAMS ARE RECORDED 审中-公开
标题翻译：图像编码和解码方法，任何装置，图像解码装置，其方案和存储介质哪些程序RECORDED
公开(公告)号：EP2066132A1
公开(公告)日：2009-06-03
申请号：EP07807442.4
申请日：2007-09-18
申请人： Nippon Telegraph and Telephone Corporation
发明人： SHIMIZU, Shinya , KITAHARA, Masaki , KAMIKURA, Kazuto , YASHIMA, Yoshiyuki
IPC分类号： H04N7/32
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：一种图像编码方法包括确定性采矿和编码全局视差信息的所有这是考虑到标准视点的照相机之间的对极几何约束的可能是正确的视差信息，所有这些都从整个多视点图像中选择和图像被所有其他获得观点; 每个摄像机作为除基准视点，其中该基础视差信息是在考虑相关相机的基于图像和所有其他摄像机的图像之间的对极几何约束的可能是正确的视差信息的其它的视点生成基础视差信息全局视差信息和摄影机参数; 用于校正基础视差信息确定的挖掘和编码补正视差信息，以便有关的摄像机的图像之间的视差指示数据和已编码的用于视差补偿参考视点图像; 并且通过使用由所述补正视差信息的手段校正基础视差信息获得的视差数据编码相关摄像机的图像。

8. 发明公开

EP4270951A3 BLOCK SIZE DETERMINATION METHOD, VIDEO ENCODING DEVICE, AND PROGRAM 审中-实审
公开(公告)号：EP4270951A3
公开(公告)日：2024-01-03
申请号：EP23196969.2
申请日：2014-03-18
申请人： Nippon Telegraph And Telephone Corporation
发明人： KUDO, Shinobu , KITAHARA, Masaki , SHIMIZU, Atsushi , FUJII, Hiroshi , WATANABE, Mayuko
IPC分类号： H04N19/119 , H04N19/147 , H04N19/176 , H04N19/192 , H04N19/96 , H04N19/196 , H04N19/172 , H04N19/157 , H04N19/187
摘要： The computational complexity when a block configuration in an encoding target region is determined is reduced while the degradation of coding efficiency is suppressed. A video encoding apparatus includes a block selecting unit which selects each of blocks obtained by recursively dividing an encoding target block as a target block in a predetermined sequence, a block size acquiring unit which acquires the smallest block size in an adjacent block for the selected target block, an evaluation value calculating unit which calculates an evaluation value of the target block if a block size of the target block matches any one of the acquired block size, the block size one level higher than the acquired block size, and the block size one level lower than the acquired block size, and a block configuration determining unit which determines a combination of the blocks constituting the region within the encoding target block based on the evaluation value.

9. 发明公开

EP3787295A1 IMAGE DECODING METHOD WITH HIERARCHICAL REFERENCE PICTURE SELECTION 有权
公开(公告)号：EP3787295A1
公开(公告)日：2021-03-03
申请号：EP20202261.2
申请日：2004-07-22
申请人： NIPPON TELEGRAPH AND TELEPHONE CORPORATION
发明人： KIMATA, Hideaki , KITAHARA, Masaki , KAMIKURA, Kazuto
IPC分类号： H04N19/31 , H04N19/172 , H04N19/423 , H04N19/105 , H04N19/503 , H04N19/136
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).

10. 发明公开

EP2648409A1 QUANTIZATION CONTROL DEVICE AND METHOD, AND QUANTIZATION CONTROL PROGRAM 有权
标题翻译：数量过大的数量超大规模数据库
公开(公告)号：EP2648409A1
公开(公告)日：2013-10-09
申请号：EP12754501.0
申请日：2012-03-05
申请人： Nippon Telegraph And Telephone Corporation
发明人： KITAHARA, Masaki , SHIMIZU, Atsushi , ONO, Naoki , KYOCHI, Seisuke
IPC分类号： H04N7/26
CPC分类号： H04N19/196 , H04N19/124 , H04N19/14 , H04N19/593
摘要： A quantization control apparatus provided in a video encoding apparatus which utilizes intra slices. The quantization control apparatus includes a similarity computation device that computes similarity between an intra slice region of an encoding target picture and an intra slice region of each of previously-encoded pictures, where the similarity is an index determined such that the closer the images of the two different intra slices, the higher the similarity; a picture selection device that selects a picture having the highest similarity from among the previously-encoded pictures, based on the similarity computed by the similarity computation device; and a quantization step determination device that determines a quantization step used for encoding the encoding target picture, based on encoding information for the picture selected by the picture selection device.
摘要翻译：一种量化控制装置，其设置在利用片内的视频编码装置中。量化控制装置包括相似度计算装置，该相似度计算装置计算编码对象图像的帧内片区域与每个先前编码图像的帧内片区域之间的相似度，其中相似度被确定为使得近似图像两个不同的片段，相似度越高; 图像选择装置，基于由所述相似度计算装置计算出的相似度，从所述先前编码的图像中选择具有最高相似度的图像; 以及量化步长确定装置，其基于由图像选择装置选择的图像的编码信息，确定用于对编码对象图像进行编码的量化步长。

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