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公开(公告)号：US11816927B2
公开(公告)日：2023-11-14
申请号：US17278381
申请日：2019-09-18
Applicant: NEC Corporation
Inventor： Keiichi Chono , Masato Tsukada , Chisato Funayama , Ryuichi Akashi , Yuka Ogino , Takashi Shibata , Shoji Yachida , Hiroshi Imai , Emi Kitagawa , Yasuhiko Yoshida , Yusuke Mori
Abstract: An information providing device according to one aspect of the present disclosure includes: at least one memory storing a set of instructions; and at least one processor configured to execute the set of instructions to: receive a face image; determine whether a person in the face image is unsuitable for iris data acquisition based on the face image; and output information based on determining that the person is unsuitable for the iris data acquisition when the person is determined to be unsuitable for the iris data acquisition.
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公开(公告)号：US20220189206A1
公开(公告)日：2022-06-16
申请号：US17684802
申请日：2022-03-02
Applicant: NEC Corporation
Inventor： Takashi Shibata , Shoji Yachida , Chisato Funayama , Masato Tsukada , Yuka Ogino , Keiichi Chono , Emi Kitagawa , Yasuhiko Yoshida , Yusuke Mori
Abstract: The disclosure is inputting a first image captured an image of an authentication target; inputting a second image captured an image of a right eye or a left eye of the target; determining whether the second image is of a left eye or a right eye of the target based on information including the first image, and outputting a determination result as left/right information in association with the second image; detecting an overlap between a region including the second image and a predetermined region in the first image; calculating a verification score by comparing characteristic information that are related to the left/right information with iris characteristic information calculated from the second image, and calculating a first weighted verification score obtained by weighting the verification score with a detection result; and authenticating a target in the second image based on the first weighted verification score, and outputting an authentication result.
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公开(公告)号：US11205399B2
公开(公告)日：2021-12-21
申请号：US14383448
申请日：2013-03-06
Applicant: NEC CORPORATION
Inventor： Masato Tsukada
Abstract: A method comprising: applying color correction to colors in a first color gamut; displaying, on color space, the second color gamut and color gamut in which the correction is applied to the first color gamut so as to make it possible to distinguish between colors constituting the first color gamut that are determined to be inside of the second color gamut and colors constituting the first color gamut that are determined to be outside of the second color gamut; selecting colors in colors outside of the displayed second color gamut; displaying an interface; determining a correction amount of the selected color in conjunction with the interface; when the selected color is on surface/inside of the second color gamut, displaying that the selected color is on surface/inside of the second color gamut; and applying the correction and generating color conversion information for converting the first color gamut into the second color gamut.
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公开(公告)号：US10511862B2
公开(公告)日：2019-12-17
申请号：US14409220
申请日：2013-05-31
Applicant: NEC Corporation
Inventor： Hirofumi Aoki , Keiichi Chono , Masato Tsukada
IPC: H04N19/50 , H04N19/70 , H04N19/68 , H04N19/44 , H04N19/105 , H04N19/159 , H04N19/196 , H04N19/107 , H04N19/174 , H04N19/167
Abstract: A video encoder 101 encodes image data of an input moving image based on prediction and generates a video bitstream of encoded pictures. A refresh controller 102 refreshes such that a partial area in the picture is assumed as a unit area to be refreshed and the unit area to be refreshed is moved on a picture-by-picture basis. A display-enabled area encoder 103 encodes a display-enabled area for each picture and generating a display-enabled area information bitstream in refreshing. A multiplexer 104 multiplexes the video bitstream and the display-enabled area information bitstream.
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公开(公告)号：US10334185B2
公开(公告)日：2019-06-25
申请号：US15122034
申请日：2015-03-03
Applicant: NEC Corporation
Inventor： Masato Tsukada , Kimberly Nancy McGuire
Abstract: Disclosed is a video capturing device which enables easy video processing in a visible light region and a near-infrared region while utilizing the configuration of a general video capturing device. This video capturing device is provided with a video data acquisition means for acquiring video data including a periodic pattern of near-infrared light, and a video processing means for acquiring a color signal of a visible light component and a near-infrared signal from the video data on the basis of the periodic pattern.
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Patent Agency Ranking
26.发明授权Image processing device and image processing method for correcting a pixel using a corrected pixel statistical value 有权图像处理装置和使用校正像素统计值校正像素的图像处理方法公开(公告)号：US09542617B2
公开(公告)日：2017-01-10
申请号：US14762889
申请日：2014-02-26
Applicant: NEC Corporation
Inventor： Kenta Senzaki , Masato Tsukada , Hiroaki Kawaguchi
CPC classification number: G06K9/52 , G06K9/46 , G06K9/4604 , G06K9/4661 , G06K2009/4666 , G06T5/00 , G06T5/002 , G06T2207/20016 , G06T2207/20192 , H04N1/409 , H04N5/14
Abstract: The present invention is directed to an image processing method, comprising: deriving a pixel statistical value of pixels and edge information for each of regions in a plurality of layers, the regions including attention pixels and having ranges that are successively narrower; correcting differential information between a pixel statistical value for a region in an attention layer and a pixel statistical value for a region in a layer wider than the region in the attention layer by using the edge information; correcting the pixel statistical value for the region in the attention layer by using the corrected differential information and the pixel statistical value for the region wider than the region in the attention layer; re-correcting the corrected pixel statistical value for the region in the attention layer by using a pixel statistical value for a region equal to or wider than a region in each of the layers and differential information between the uncorrected pixel statistical value for the region in the attention layer and the corrected pixel statistical value for the region in the attention layer; and correcting the attention pixel by repeating the correcting and the re-correcting the pixel statistical value for the region in the attention layer sequentially in the respective layers until the region is reduced from a maximum range to a minimum range.
Abstract translation: 本发明涉及一种图像处理方法，包括：针对多个层中的每个区域，导出像素的像素统计值和边缘信息，所述区域包括关注像素并且具有相继变窄的范围; 通过使用所述边缘信息来校正所述关注层中的区域的像素统计值与所述关注层中的所述区域之外的区域的像素统计值的差分信息; 通过使用校正后的差分信息和比关注层中的区域宽的区域的像素统计值来校正注意层中的区域的像素统计值; 通过使用等于或大于每个层中的区域的区域的像素统计值和在该层中的区域的未校正像素统计值之间的差分信息来重新校正注意层中的区域的校正像素统计值 注意层和注意层区域的校正像素统计值; 以及通过重复在各层中顺序地对关注层中的区域进行像素统计值的校正和重新校正，直到该区域从最大范围减小到最小范围来校正关注像素。
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27.发明授权公开(公告)号：US09519958B2
公开(公告)日：2016-12-13
申请号：US14396061
申请日：2013-04-24
Applicant: NEC Corporation
Inventor： Kenta Senzaki , Masato Tsukada , Hiroaki Kawaguchi
IPC: G06K9/40 , G06T5/00 , G09G1/14 , G09G3/28 , G09G3/30 , G09G5/00 , G09G5/02 , G09G5/10 , G06T5/20 , H04N5/217 , H04N5/357
CPC classification number: G06T5/20 , G06T5/002 , G06T2207/20016 , G06T2207/20076 , H04N5/2173 , H04N5/357
Abstract: A method includes: calculating a pixel statistical value and edge of pixels for each of areas of a multi-layer, the areas each containing a target pixel and having a successively decreased range; correcting the edge based on a pixel statistical value of an area that is wider than a specific area; correcting difference between a pixel statistical value of the specific area and the pixel statistical value of the area that is wider than the specific area using the post-correction edge; correcting the pixel statistical value of the specific area using post-correction difference and the pixel statistical value of the area that is wider than the specific area; and correcting the target pixel by repeating correction of the pixel statistical value of the specific area successively in each area until the area reduces its range from the maximum range to the minimum range.
Abstract translation: 一种方法包括：计算多层的每个区域的像素统计值和像素边缘，每个区域包含目标像素并具有连续减小的范围; 基于比特定区域宽的区域的像素统计值来校正边缘; 使用所述校正后边缘来校正所述特定区域的像素统计值和比所述特定区域宽的区域的像素统计值之间的差异; 使用校正后差异以及比特定区域宽的区域的像素统计值来校正特定区域的像素统计值; 并且通过在每个区域中连续地重复校正特定区域的像素统计值来校正目标像素，直到该区域将其范围从最大范围减小到最小范围。
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28.发明申请COLOR REPRODUCTION METHOD, COLOR REPRODUCTION SYSTEM, COLOR REPRODUCTION PROGRAM, AND COLOR REPRODUCTION APPARATUS 审中-公开彩色再现方法，彩色再现系统，彩色再现程序和彩色再现装置公开(公告)号：US20150042673A1
公开(公告)日：2015-02-12
申请号：US14383448
申请日：2013-03-06
Applicant: NEC CORPORATION
Inventor： Masato Tsukada
CPC classification number: G09G5/06 , G09G2320/0606 , G09G2320/0666 , G09G2320/0693 , H04N1/6058
Abstract: A method comprising: applying color correction to colors in a first color gamut; displaying, on color space, the second color gamut and color gamut in which the correction is applied to the first color gamut so as to make it possible to distinguish between colors constituting the first color gamut that are determined to be inside of the second color gamut and colors constituting the first color gamut that are determined to be outside of the second color gamut; selecting colors in colors outside of the displayed second color gamut; displaying an interface; determining a correction amount of the selected color in conjunction with the interface; when the selected color is on surface/inside of the second color gamut, displaying that the selected color is on surface/inside of the second color gamut; and applying the correction and generating color conversion information for converting the first color gamut into the second color gamut.
Abstract translation: 一种方法，包括：对第一色域中的颜色应用颜色校正; 在颜色空间上显示对第一色域进行校正的第二色域和色域，从而可以区分被确定为第二色域内部的构成第一色域的颜色 以及构成所述第一色域的颜色，所述颜色被确定为在所述第二色域之外; 选择所显示的第二色域外的颜色的颜色; 显示界面; 结合界面确定所选颜色的校正量; 当选择的颜色在第二色域的表面/内部时，显示所选择的颜色在第二色域的表面/内部; 以及应用校正并产生用于将第一色域转换成第二色域的颜色转换信息。
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公开(公告)号：US12302005B2
公开(公告)日：2025-05-13
申请号：US17638356
申请日：2019-09-04
Applicant: NEC Corporation
Inventor： Masato Tsukada , Chisato Funayama , Yuka Ogino , Hiroshi Imai , Keiichi Chono , Emi Kitagawa , Yasuhiko Yoshida , Hiroshi Yamada , Shoji Yachida , Takashi Shibata
Abstract: A control device according to an aspect of the present disclosure includes: at least one memory configured to store instructions; and at least one processor configured to execute the instructions to: acquire an input image including an eye region that is a region of an eye part; estimate illuminance of the eye part from the acquired input image; and determine a light amount of illumination of visible light with which the eye part is irradiated in such a way that a pupil size of the eye part satisfies a size condition based on an illuminance size relationship that is a relationship between the illuminance and the pupil size.
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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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