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公开(公告)号：US20220122297A1
公开(公告)日：2022-04-21
申请号：US17431678
申请日：2020-02-03
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Shota ORIHASHI , Shinobu KUDO , Ryuichi TANIDA , Atsushi SHIMIZU
Abstract: A generation apparatus includes an interpolation unit that generates, from a moving image including a plurality of frames, an interpolated frame in which some regions in one or more frames included in the moving image are interpolated, and a discrimination unit that discriminates whether a plurality of input frames is interpolated frames in which some regions in the plurality of input frames is interpolated. The discrimination unit includes a temporal direction discrimination unit that discriminates time-wise the plurality of input frames, a spatial direction discrimination unit that discriminates space-wise the plurality of input frames, and an integrating unit that integrates discrimination results from the temporal direction discrimination unit and the spatial direction discrimination unit.
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公开(公告)号：US20220021903A1
公开(公告)日：2022-01-20
申请号：US17294956
申请日：2019-11-13
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Takehito MIYAZAWA , Yukihiro BANDO , Atsushi SHIMIZU
IPC: H04N19/597 , H04N19/182
Abstract: An evaluation device for evaluating coding quality of coded data of an image for a first viewpoint in a multi-viewpoint image, the evaluation device includes an evaluation unit that evaluates coding quality of coded data relating to the first viewpoint by associating a pixel value of an original image for the first viewpoint, a pixel value obtained from the coded data relating to the first viewpoint, a pixel value of an original image for a second viewpoint that is different from the first viewpoint and a pixel value obtained from coded data relating to the second viewpoint with one another.
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公开(公告)号：US20160156911A1
公开(公告)日：2016-06-02
申请号：US14903132
申请日：2014-07-22
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Tokinobu MITASAKI , Naoki ONO , Atsushi SHIMIZU
IPC: H04N19/176 , H04N19/52 , H04N19/61
CPC classification number: H04N19/176 , H04N19/119 , H04N19/122 , H04N19/139 , H04N19/14 , H04N19/147 , H04N19/52 , H04N19/61
Abstract: An image encoding method that encodes an image so as to optimize estimated values of processing units which are a coding unit, a prediction unit, and a transform unit by selecting sizes of the individual processing units. The method includes a division step that divides an image having a size of the coding unit into a plurality of blocks; an activity computation step that computes activities pertaining to the individual blocks; and a transform unit size determination step that determines, based on the computed activities, a size pattern of the transform unit within the image having the size of the coding unit.
Abstract translation: 一种图像编码方法，其对图像进行编码，以通过选择各个处理单元的大小来优化作为编码单位，预测单元和变换单位的处理单元的估计值。 该方法包括：划分步骤，将具有编码单元的大小的图像划分成多个块; 活动计算步骤，计算与各个块相关的活动; 以及变换单位尺寸确定步骤，基于所计算的活动，确定具有所述编码单元的大小的所述图像内的所述变换单元的尺寸模式。
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公开(公告)号：US20220358685A1
公开(公告)日：2022-11-10
申请号：US17621592
申请日：2019-06-24
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Shiori SUGIMOTO , Seishi TAKAMURA , Atsushi SHIMIZU
Abstract: An image encoding method that expresses an image using pixels or blocks, and colors assigned to the pixels or the blocks when encoding an image to be encoded, and encodes a block division tree and color information, the color information being assigned to all nodes including a root node, branch nodes, and leaf nodes of the block division tree, the method includes: a division tree generation step of dividing the image to be encoded using an arbitrary division tree and thereby generating the block division tree; a color information determination step of determining representative colors that represent interim blocks or final blocks and assigning the determined colors as color information corresponding to the respective nodes, the interim blocks or the final blocks corresponding to the nodes of the block division tree; a tree encoding step of encoding the block division tree; and a color information encoding step of encoding the color information.
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公开(公告)号：US20210112283A1
公开(公告)日：2021-04-15
申请号：US17057006
申请日：2019-05-09
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Shota ORIHASHI , Shinobu KUDO , Masaki KITAHARA , Atsushi SHIMIZU
IPC: H04N19/85 , H04N19/167 , H04N19/463 , H04N19/17 , H04N19/132 , H04N19/593
Abstract: A coding device of the present invention for coding an image includes: a region acquiring unit configured to acquire a region of a first image that matches a predetermined condition; an image acquiring unit configured to obtain a second image by associating the first image, the acquired region, and a region obtained by removing the acquired region from the first image with each other; and a coding unit configured to code the second image. Also, an image interpolation system of the present invention for interpolating a first image includes: an acquiring unit configured to acquire the first image and auxiliary information by associating a second image, a matching region of the second image that matches a predetermined condition, and a region obtained by removing the matching region from the second image with each other; and an interpolating unit configured to interpolate the first image using the auxiliary information, and obtain an image that approximates the second image. With the present invention, it is possible to execute image interpolation processing while suppressing degradation of the subjective image quality.
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Patent Agency Ranking
公开(公告)号：US20210042963A1
公开(公告)日：2021-02-11
申请号：US17046227
申请日：2019-04-05
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Motohiro TAKAGI , Kazuya HAYASE , Tokinobu MITASAKI , Atsushi SHIMIZU
Abstract: A learning data generation device of an embodiment includes a detection unit that detects a changed region in a space between a first map and a second map based on first map data which indicate the first map and second map data which indicate the second map which indicates a substantially same space as the first map and represents the space at a different time point from the first map and a changed region image acquisition unit that acquires images which correspond to the changed region detected by the detection unit from a first image in which the space represented by the first map is captured and a second image in which the space represented by the second map is captured.
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7.发明申请公开(公告)号：US20200066000A1
公开(公告)日：2020-02-27
申请号：US16467321
申请日：2017-12-12
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Kazuya HAYASE , Tokinobu MITASAKI , Atsushi SHIMIZU
IPC: G06T7/00
Abstract: An image difference determination device includes a determination result acquisition unit configured to acquire a result of determining whether or not there is a difference between time-series images when there are at least three time-series images and a speed determination unit configured to determine that the difference between the time-series images is caused by a change of a prescribed speed or less when it is determined that there is a difference between images at both ends of a time series in which it is determined that there is no difference between images adjacent in the time series.
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公开(公告)号：US20220237734A1
公开(公告)日：2022-07-28
申请号：US17596139
申请日：2019-06-06
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Satoshi SUZUKI , Motohiro TAKAGI , Kazuya HAYASE , Takayuki ONISHI , Atsushi SHIMIZU
Abstract: An image processing device includes an image processing unit configured to execute image processing on an image based on an input image, and output a result of the image processing. The input image is a post-conversion image obtained by performing image conversion on an original image. The image conversion includes image conversion for further reducing a data size of the original image while maintaining a feature acquired from the original image and related to an object similar to a subject captured in the original image and maintaining processing accuracy of the image processing.
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公开(公告)号：US20220222859A1
公开(公告)日：2022-07-14
申请号：US17595182
申请日：2019-05-30
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Motohiro TAKAGI , Kazuya HAYASE , Takayuki DNISHI , Atsushi SHIMIZU
IPC: G06T7/00
Abstract: A difference detection apparatus includes: an acquisition unit configured to acquire a difference level indicating a level of a difference between a first image that is an image of a first spatial region and a second image that is an image of a second spatial region located at a substantially same position as the first spatial region, first probability data indicating a probability that a target object is present in the first spatial region, and second probability data indicating a probability that the target object is present in the second spatial region; and a detection unit configured to associate the difference level, the first probability data, and the second probability data, and detect, based on a result of the association, a region where a difference occurs between the first image and the second image.
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公开(公告)号：US20220005233A1
公开(公告)日：2022-01-06
申请号：US17292617
申请日：2019-09-24
Applicant: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Inventor： Shinobu KUDO , Shota ORIHASHI , Masaki KITAHARA , Atsushi SHIMIZU
Abstract: An encoding apparatus encodes an input image and includes: a provisional encoded data acquisition unit configured to obtain provisional encoded data which has a size greater than a target size of encoded data which is data obtained by encoding the image based on the image and a parameter for determining the target size; and an encoded data acquisition unit configured to obtain the encoded data by converting data within a data range outside of a data range corresponding to the target size in the provisional encoded data into a predetermined value. The provisional encoded data acquisition unit obtains the provisional encoded data so that features for determining the image are contained more within the data range corresponding to the target size than in the data range outside of the data range corresponding to the target size.
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