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公开(公告)号：US20210344967A1
公开(公告)日：2021-11-04
申请号：US17273366
申请日：2019-09-11
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Shinobu KUDO , Shota ORIHASHI , Masaki KITAHARA , Atsushi SHIMIZU
Abstract: An image processing apparatus for performing correction for each frame group including a predetermined number of frames into which video data is divided includes a decoding unit configured to obtain a corrected frame group by correcting a second frame group, which is a frame group continuous with a first frame group in time, using a feature quantity of the first frame group. The decoding unit performs the correction so that subjective image quality based on a relationship between the second frame group and a frame group subsequent to the second frame group in time is increased and so that a predetermined classifier classifies that a frame group in which the second frame group is concatenated with the frame group subsequent to the second frame group in time is the same as a frame group in which the corrected frame group is concatenated with a corrected frame group obtained by correcting the frame group subsequent to the second frame group in time.
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公开(公告)号：US20210258591A1
公开(公告)日：2021-08-19
申请号：US16973741
申请日：2019-06-04
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Yuya OMORI , Takayuki ONISHI , Hiroe IWASAKI , Atsushi SHIMIZU
IPC: H04N19/423 , G11B20/00 , G11B20/10 , H04N19/433
Abstract: A buffer device stores, in relation to a first area and a second area, which are partial areas respectively located on an identical line of an encoding target frame, and a third area, which is a partial area on the line below the identical line, reference image data for each search range of a reference frame that is referred to during motion search processing executed in order of the first area, the second area, and the third area, the buffer device including a memory for storing the reference image data, and a buffer control unit which, when the motion search processing is executed on the second area, executes control so that among the reference image data included in a first search range that is referred to during the motion search processing of the first area, the reference image data included in a third search range that is referred to during the motion search processing of the third area are left in the memory without being deleted.
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13.发明申请公开(公告)号：US20210201498A1
公开(公告)日：2021-07-01
申请号：US17057313
申请日：2019-05-09
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Xiaojun WU , Masaki KITAHARA , Atsushi SHIMIZU
Abstract: A statistical data processing device according to an embodiment includes: a first statistical image generation unit for generating statistical images for a predetermined region, the predetermined region being divided into sections on a basis of latitude and longitude, the statistical images including a first statistical image representing a first statistical value as a corresponding pixel value, the first statistical value being for each of first sections obtained from the region divided by a first area, and a second statistical image representing a second statistical value as a corresponding pixel value, the second statistical value being for each of second sections obtained from the region divided by a second area, a mask generation unit for generating a mask image, the mask image extracting, if one of a pixel of a first statistical image and a corresponding pixel of a second statistical image does not have a pixel value indicating a statistical value, a pixel not having a pixel value indicating the statistical value or other pixel, and a second statistical image generation unit for generating, on a basis of the first statistical image, the second statistical image, and the mask image, a third statistical image in which a pixel value of a pixel not having a pixel value indicating the statistical value is complemented with a pixel value of the other statistical image.
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公开(公告)号：US20210182593A1
公开(公告)日：2021-06-17
申请号：US17187187
申请日：2021-02-26
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Tokinobu MITASAKI , Kazuya HAYASE , Atsushi SHIMIZU
Abstract: An image evaluation device includes a determination result acquisition unit acquires a result of determining the presence or absence of a difference between an object image that is one of a plurality of images that include three or more images obtained by imaging substantially the same spatial region and each of reference images that are images other than the object image among the plurality of images and an evaluation index acquisition unit configured to acquire an evaluation index for the plurality of images on the basis of at least one of the number of determinations of the presence of the difference between the object image and each reference image and the number of determinations of the absence of the difference between the object image and each reference image.
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公开(公告)号：US20220358684A1
公开(公告)日：2022-11-10
申请号：US17621436
申请日：2019-06-24
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Mayuko WATANABE , Ryuichi TANIDA , Takayuki ONISHI , Atsushi SHIMIZU
IPC: G06T9/40
Abstract: An encoding device includes a division unit that acquires three-dimensional data representing positions of a plurality of points distributed along a surface of an object in a three-dimensional space and divides a parent space including the points in the three-dimensional space into a plurality of child spaces and an encoding unit that changes, based on a position of a target space, which is the child space, to which a sign representing whether the points are included is allocated, according to whether the points are included in a first child space adjacent to the target space, processing for allocating the sign to the target space and a second child space adjacent to the target space.
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Patent Agency Ranking
公开(公告)号：US20220078437A1
公开(公告)日：2022-03-10
申请号：US17414889
申请日：2019-12-05
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Yuya OMORI , Takayuki ONISHI , Hiroe IWASAKI , Atsushi SHIMIZU
IPC: H04N19/137 , H04N19/105 , H04N19/159 , H04N19/176
Abstract: A coding device executes coding having divided an image into blocks, and includes: a candidate obtainment unit that obtains a plurality of provisional motion vector candidates in a coding target block; an evaluation information obtainment unit that obtains a correspondence vector that is a vector having a same direction and a same magnitude as a direction and a magnitude of the obtained provisional motion vector candidates, and evaluation information of a search center indicated by the correspondence vector in a coded block; and a selection unit that, on the basis of the evaluation information, selects, from the plurality of provisional motion vector candidates, a number of motion vector candidates that is lower than the number of the plurality of provisional motion vector candidates.
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公开(公告)号：US20220021897A1
公开(公告)日：2022-01-20
申请号：US17295121
申请日：2019-11-18
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Takehito MIYAZAWA , Yukihiro BANDO , Atsushi SHIMIZU
IPC: H04N19/513 , H04N19/105 , H04N19/597 , H04N19/176
Abstract: A prediction device for predicting a motion vector of a coding target block in coding of a composite image formed by combining multiple viewpoint images includes: a storage unit that stores a first predicted motion vector indicating a predicted motion vector candidate; and an update unit that if a predetermined condition is met, generates a second predicted motion vector that is a vector indicating a pixel in an adjacent viewpoint, the pixel being located at a position that is same as a position of the coding target block, and stores the second predicted motion vector the storage unit.
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18.发明申请公开(公告)号：US20210027474A1
公开(公告)日：2021-01-28
申请号：US16971762
申请日：2019-02-19
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Motohiro TAKAGI , Kazuya HAYASE , Tokinobu MITASAKI , Atsushi SHIMIZU
Abstract: An abnormality determination device includes: an analysis unit that analyzes at least a feature amount related to a pattern of a captured image of a manhole cover, the feature amount being included in coded information obtained by coding the captured image; and a determination unit that determines based on an analysis result of the analysis unit whether the manhole cover is abnormal.
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公开(公告)号：US20190272439A1
公开(公告)日：2019-09-05
申请号：US16348414
申请日：2017-11-08
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Tokinobu MITASAKI , Kazuya HAYASE , Atsushi SHIMIZU
Abstract: An image evaluation device includes a determination result acquisition unit acquires a result of determining the presence or absence of a difference between an object image that is one of a plurality of images that include three or more images obtained by imaging substantially the same spatial region and each of reference images that are images other than the object image among the plurality of images and an evaluation index acquisition unit configured to acquire an evaluation index for the plurality of images on the basis of at least one of the number of determinations of the presence of the difference between the object image and each reference image and the number of determinations of the absence of the difference between the object image and each reference image.
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20.发明申请IMAGE ENCODING METHOD, IMAGE ENCODING APPARATUS, AND IMAGE ENCODING PROGRAM 审中-公开图像编码方法，图像编码装置和图像编码程序公开(公告)号：US20160182904A1
公开(公告)日：2016-06-23
申请号：US14906407
申请日：2014-07-22
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Mayuko WATANABE , Masaki KITAHARA , Atsushi SHIMIZU
IPC: H04N19/11 , H04N19/147 , H04N19/176 , H04N19/132
CPC classification number: H04N19/11 , H04N19/119 , H04N19/132 , H04N19/147 , H04N19/176 , H04N19/436
Abstract: An image encoding apparatus capable of reducing the computational complexity in intra-prediction of an encoding optimization process is provided. The image encoding apparatus includes a reference pixel generation unit that generates reference pixels from predicted pixels of neighboring pixels and pixels of an original image for intra-prediction directions, a pseudo intra-predicted pixel generation unit that generates pseudo intra-predicted pixels from the reference pixels and the intra-prediction directions, a coding cost calculation unit that calculates coding costs for the intra-prediction directions from errors between the pseudo intra-predicted pixels and the pixels of the original image and generated bit amounts when the pseudo intra-predicted pixels are generated, and an intra-prediction direction setting unit that sets an intra-prediction direction corresponding to the lowest coding cost among the coding costs as an optimal intra-prediction direction.
Abstract translation: 提供了能够降低编码优化处理的帧内预测中的计算复杂度的图像编码装置。 该图像编码装置包括：参照像素生成部，其生成来自相邻像素的预测像素的参考像素和用于帧内预测方向的原始图像的像素;伪帧内预测像素生成部，其从基准生成伪帧内预测像素 像素和帧内预测方向，编码成本计算单元，当伪伪帧内预测像素和伪帧内预测像素之间的误差在原始图像的像素和原始图像的像素之间计算帧内预测方向的编码成本时， 以及帧内预测方向设定单元，其将编码成本之中的最低编码成本对应的帧内预测方向设定为最佳帧内预测方向。
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