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1.发明申请公开(公告)号：US20180174282A1
公开(公告)日：2018-06-21
申请号：US15738189
申请日：2016-06-10
Applicant: NEC Corporation , TOKYO INSTITUTE OF TECHNOLOGY
Inventor： Takashi SHIBATA , Masayuki TANAKA , MASATOSHI OKUTOMI
CPC classification number: G06T5/009 , G06F17/16 , G06T5/50 , G06T2207/10024 , G06T2207/10032 , G06T2207/10036 , G06T2207/10048 , G06T2207/20221 , H04N1/387 , H04N1/60 , H04N5/2258 , H04N5/23245 , H04N5/332 , H04N5/3454 , H04N5/3675
Abstract: An image processing system includes: a weight determination circuitry configured to determine a band containing important information from among a group of images, which are acquired by a plurality of sensors, and to express a degree of importance of the band as a weight; a calculation circuitry configured to calculate, using the weight, an amount calculated based on a gradient of an image based on a gradient of each image, that is calculated based on the group of images, in order to restrict a gradient of an output image; and an image optimization circuitry configured to compose the output image using the amount calculated based on the gradient of the image.
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2.发明申请MULTOCULAR IMAGING SYSTEM, SYNTHESIS PROCESS METHOD OF ACQUIRED IMAGES, AND PROGRAM 有权文化图像系统，采集图像的合成过程方法和程序公开(公告)号：US20160098852A1
公开(公告)日：2016-04-07
申请号：US14893484
申请日：2014-04-22
Applicant: TOKYO INSTITUTE OF TECHNOLOGY , NEC CORPORATION
Inventor： Shuji SENDA , Akihiko IKETANI , Takashi SHIBATA , Masatoshi OKUTOMI , Masayuki TANAKA
CPC classification number: G06T11/60 , G06K9/00677 , G06K9/00771 , G06K9/46 , G06K9/6215 , G06K9/6293 , G06K2009/4666 , G06T2200/28 , G06T2207/20021 , G06T2207/20024 , H04N5/247 , H04N5/262
Abstract: A basis image is converted into a more functional image by image synthesis technology using a number of imaging devices arranged independently of each other. A multocular imaging system is provided with a plurality of imaging parts that can be arranged independently of each other, a similar component search part operable to acquire a basis image outputted from at least one imaging part of the plurality of imaging parts and a reference image outputted from another imaging part of the plurality of imaging parts and to search a similar component included in the reference image for each of components included in the basis image, and an image synthesis part operable to perform a synthesis process on at least one component included in the basis image into a desired image with reference to the similar component extracted by the similar component search part and to output the desired image as a synthesis image.
Abstract translation: 通过使用彼此独立排列的多个成像装置的图像合成技术将基础图像转换为更多功能的图像。 多个成像系统具有能够相互独立排列的多个成像部，具有可以从多个成像部的至少一个成像部输出的基础图像和输出的基准图像的相似成分检索部， 从所述多个成像部件的另一成像部分中搜索包括在所述基础图像中的每个部件的所述参考图像中的类似部件，以及可操作以对包括在所述基础图像中的至少一个部件执行合成处理的图像合成部分 参考由相似分量搜索部分提取的相似分量并将所需图像作为合成图像输出到所需图像中。
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3.发明申请公开(公告)号：US20190206361A1
公开(公告)日：2019-07-04
申请号：US16326556
申请日：2017-09-17
Applicant: NEC Corporation , TOKYO INSTITUTE OF TECHNOLOGY
Inventor： Takashi SHIBATA , Masayuki TANAKA , Masatoshi OKUTOMI
Abstract: The image data display system according to the present invention makes it possible to comprehend a global distribution of measurement values and a change in details of the measurement values simultaneously. In the present invention, a color information conversion unit converts the measurement values to color information for representing the global distribution of the measurement values. A detail extraction unit extracts detail information of the measurement values from the measurement values. A detail adjustment unit adjusts the strength of detail information and generates adjusted detail information. A color information adding unit adds color information on the basis of the adjusted detail information.
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4.发明申请公开(公告)号：US20180322672A1
公开(公告)日：2018-11-08
申请号：US15772239
申请日：2016-09-14
Applicant: NEC CORPORATION , TOKYO INSTITUTE OF TECHNOLOGY
Inventor： Takashi SHIBATA , Masayuki TANAKA , Masatoshi OKUTOMI
IPC: G06T11/60 , G11B27/031 , G11B27/28 , G06T5/50 , G06T5/00
CPC classification number: G06T11/60 , G06T5/001 , G06T5/007 , G06T5/50 , G06T2207/10024 , G11B27/031 , G11B27/28 , H04N1/40 , H04N1/409 , H04N1/58
Abstract: An image processing system in which, in order to easily analyze input images acquired by sensors, output image quality is improved so that is suitable for a user. It includes: a gradient calculation unit that calculates a desired gradient based on input images; an indication function calculation unit that calculates an indication function for the input images, the indication function defining a range that can be taken by an output image and pixel values of a reference image; a pixel value renewal unit that renews pixel values of one of the input images so as to approximate the desired gradient to produce a renewed image; and a pixel value constraint unit that updates pixel values of the renewed image so as to fall within the range that can be taken by the output image and to approximate the pixel values of the reference image, to thereby obtain the output image.
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5.发明申请公开(公告)号：US20200074604A1
公开(公告)日：2020-03-05
申请号：US16344214
申请日：2017-10-26
Applicant: NEC Corporation , TOKYO INSTITUTE OF TECHNOLOGY
Inventor： Takashi SHIBATA , Masatoshi OKUTOMI , Masayuki TANAKA
Abstract: The present invention enables a high-quality filtered image to be generated even from multi modal and multispectral images containing positional deviations. An image perturbation part generates a perturbed guide image group comprising first to K-th perturbed guide images obtained by deforming a guide image. A filtering part generates a filtered image group comprising first to K-th filtered images by applying first to K-th filtering processing to a target image by using the perturbed guide image group. A reliability calculation part calculates a reliability group comprising first to K-th reliabilities for the first to K-th filtered images of the filtered image group on the basis of first to K-th correlation values between the first to K-th perturbed guide images and the target image. A weight optimization part generates, on the basis of the first to K-th reliabilities, a weight group comprising first to K-th weights to be respectively used when compositing the first to K-th filtered images. An output image compositing pail composites an output image from the weight group and the filtered image group.
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Patent Agency Ranking
公开(公告)号：US20180262748A1
公开(公告)日：2018-09-13
申请号：US15763613
申请日：2016-09-26
Applicant: NEC Corporation , TOKYO INSTITUTE OF TECHNOLOGY
Inventor： Takashi SHIBATA , Masayuki TANAKA , Masatoshi OKUTOMI
IPC: H04N13/246 , H04N5/33 , H04N13/257 , H04N9/73
CPC classification number: H04N13/246 , G01B11/24 , G01B21/042 , G02B27/32 , H04N5/33 , H04N9/735 , H04N13/257 , H04N17/002 , H04N2013/0077
Abstract: A camera calibration board, which is arranged three-dimensionally above a board, includes the board, a plurality of flat plates, and a plurality of support columns having the same length. The plurality of flat plates are spatially arranged in a plane different from a plane in which the board is arranged. The board and each of the plurality of flat plates have different reflectances with respect to visible light. With this configuration, it is possible to accurately measure extrinsic parameters between cameras, which are required for calibrating cameras that use different types of image sensors, in order to easily analyze a group of images acquired from a plurality of sensors.
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公开(公告)号：US20220132092A1
公开(公告)日：2022-04-28
申请号：US17432795
申请日：2020-02-27
Applicant: NEC CORPORATION , TOKYO INSTITUTE OF TECHNOLOGY
Inventor： Takashi SHIBATA , Masatoshi OKUTOMI , Masayuki TANAKA , Thapanapong RUKKANCHANUNT
IPC: H04N13/246 , G06T7/80 , G06V10/25
Abstract: A camera calibration information acquisition device acquires captured images of a camera calibration target from two or more cameras, detects, from each image, a coordinate of a feature point in the image, calculates—an internal parameter for each camera by using the feature point, calculates, for each camera, a magnitude of error in the coordinate of the feature point, calculates a value for an external parameter of the cameras by using the magnitude of the error, the coordinate of the feature point, and an error function set so that a penalty for error in calculating the external parameter decreases as the magnitude of the error in the coordinate of the feature point in the image increases.
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公开(公告)号：US20250017495A1
公开(公告)日：2025-01-16
申请号：US18896998
申请日：2024-09-26
Applicant: NEC Corporation
Inventor： Takashi SHIBATA , Shoji Yachida , Chisato Funayama , Masato Tsukada , Yuka Ogino , Keiichi Chono , Emi Kitagawa , Yasuhiko Yoshida , Yusuke Mori
IPC: A61B5/1171 , G06F21/32 , G06V10/26
Abstract: An authentication device includes an image acquisition unit, an identification unit, and an authentication unit. The image acquisition unit acquires an image of an eye of a subject. The identification unit identifies the colored pattern of a colored contact lens worn by the subject by comparing a reference image with the image of the eye. The authentication unit identifies the subject, using a feature in a region other than a colored region of the colored pattern in the iris region of the eye.
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公开(公告)号：US20240350038A1
公开(公告)日：2024-10-24
申请号：US18757651
申请日：2024-06-28
Applicant: NEC Corporation
Inventor： Takashi SHIBATA , Shoji YACHIDA , Chisato FUNAYAMA , Masato TSUKADA , Yuka OGINO , Keiichi CHONO , Emi KITAGAWA , Yasuhiko YOSHIDA , Yusuke MORI
IPC: A61B5/1171 , G06F21/32 , G06V10/26
CPC classification number: A61B5/1171 , G06F21/32 , G06V10/267
Abstract: An authentication device includes an image acquisition unit, an identification unit, and an authentication unit. The image acquisition unit acquires an image of an eye of a subject. The identification unit identifies the colored pattern of a colored contact lens worn by the subject by comparing a reference image with the image of the eye. The authentication unit identifies the subject, using a feature in a region other than a colored region of the colored pattern in the iris region of the eye.
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公开(公告)号：US20230368583A1
公开(公告)日：2023-11-16
申请号：US18221319
申请日：2023-07-12
Applicant: NEC Corporation
Inventor： Takashi SHIBATA , Shoji YACHIDA , Chisato FUNAYAMA , Masato TSUKADA , Yuka OGINO , Keiichi CHONO , Emi KITAGAWA , Yasuhiko YOSHIDA , Yusuke MORI
CPC classification number: G06V40/70 , G06V40/197 , G06V20/52 , G06V40/171 , G06V40/19 , G06V40/103 , G06V2201/07
Abstract: The disclosure is detecting an authentication target who is moving in a predetermined direction in a video; inputting a first image in which an entire body of the target; calculating characteristic information from an image of the entire body in the first image, comparing the calculated characteristic information with characteristic information of the entire body stored in first memory that stores characteristic information of entire bodies of targets, and extracting candidate information of the targets from the first memory based on a first authentication result; inputting a second image in which an iris of the target; and comparing characteristic information of irises stored in second memory that stores the characteristic information of the irises of targets with characteristic information of an iris from the second image, calculating a verification score, executing second authentication on the target in the second image based on the verification score, and outputting an authentication result.
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