公开(公告)号：US12014572B2

公开(公告)日：2024-06-18

申请号：US18223456

申请日：2023-07-18

Applicant: NEC Corporation

Inventor： Shoji Yachida

IPC: G06V40/16 ,  G06V10/50 ,  G06V10/80 ,  G06V40/18 ,  G06V40/19

CPC classification number: G06V40/171 ,  G06V10/50 ,  G06V10/803 ,  G06V40/16 ,  G06V40/19 ,  G06V40/193

Abstract: An image processing 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 visible image of a face; receive a near-infrared image of the face; adjust brightness of the visible image based on a frequency distribution of pixel values of the visible image and a frequency distribution of pixel values of the near-infrared image; specify a relative position at which the visible image is related to the near-infrared image; invert adjusted brightness of the visible image; detect a region of a pupil from a synthetic image obtained by adding up the visible image the brightness of which is inverted and the near-infrared image based on the relative position; and output information on the detected pupil.

公开(公告)号：US11955211B2

公开(公告)日：2024-04-09

申请号：US17282520

申请日：2018-10-15

Applicant: NEC Corporation

Inventor： Takashi Shibata ,  Shoji Yachida ,  Chisato Funayama ,  Masato Tsukada ,  Yuka Ogino ,  Keiichi Chono ,  Emi Kitagawa ,  Yasuhiko Yoshida ,  Yusuke Mori ,  Toru Takahashi

IPC: G16H10/60 ,  G06F16/532 ,  G06F21/32 ,  G06K7/14 ,  G06V40/19

CPC classification number: G16H10/60 ,  G06F16/532 ,  G06K7/1413 ,  G06V40/19 ,  G06F21/32 ,  G06K7/1417

Abstract: A first-aid information provision system of the example embodiments includes: an information display device that includes first capture means for capturing an iris image, code acquisition means for acquiring a code associated with the captured iris image, and code display means for displaying the acquired code; and an information output device that includes second capture means for imaging the code displayed by the information display device, first-aid information acquisition means for acquiring first-aid information about an individual associated with the iris image by using the imaged code, and first-aid information output means for outputting the first-aid information.

公开(公告)号：US20240104902A1

公开(公告)日：2024-03-28

申请号：US18266887

申请日：2020-12-22

Applicant: NEC Corporation

Inventor： Shigeaki Namiki ,  Shoji Yachida ,  Toshinori Hosoi

IPC: G06V10/774 ,  G06V10/44 ,  G06V10/764 ,  G06V10/98

CPC classification number: G06V10/774 ,  G06V10/44 ,  G06V10/764 ,  G06V10/98

Abstract: A data acquisition means acquires source domain data and target domain data. An alignment means performs an alignment which converts the source domain data and the target domain data into images of a predetermined reference angle. A feature extraction means extracts local features of the source domain data and the target domain data. A classification means classifies a class based on the local features of the source domain data and the target domain data after the alignment. A learning means trains the feature extraction means based on the local features of the source domain data and the target domain data after the alignment and a classification result of the class.

公开(公告)号：US20240099653A1

公开(公告)日：2024-03-28

申请号：US18378786

申请日：2023-10-11

Applicant: NEC Corporation

Inventor： Toshinori HOSOI ,  Shoji Yachida

IPC: A61B5/00 ,  A61B3/113 ,  A61B5/16

CPC classification number: A61B5/4842 ,  A61B3/113 ,  A61B5/163

Abstract: In a recovery level estimation device, an image acquisition means acquires images in which eyes of a patient are captured. An eye movement feature extraction means extracts an eye movement feature which is a feature of an eye movement based on the images. A recovery level estimation means estimates a recovery level of the patient based on the eye movement feature by using a recovery level estimation model which has been learned by machine learning in advance.

公开(公告)号：US11887349B2

公开(公告)日：2024-01-30

申请号：US17439898

申请日：2019-03-26

Applicant: NEC Corporation

Inventor： Masato Tsukada ,  Hiroshi Imai ,  Chisato Funayama ,  Yuka Ogino ,  Ryuichi Akashi ,  Keiichi Chono ,  Emi Inui ,  Yasuhiko Yoshida ,  Hiroshi Yamada ,  Shoji Yachida ,  Takashi Shibata

IPC: G06V10/25 ,  G06V10/60 ,  G06V40/18 ,  A61B5/06 ,  A61B5/16

CPC classification number: G06V10/25 ,  A61B5/16 ,  G06V10/60 ,  G06V40/18

Abstract: An image acquisition unit (2) acquires an image obtained by capturing at least eyes of a target person. An object specifying unit (4) specifies an object in a line-of-sight direction of the target person using the acquired image. An incident light amount calculation unit (6) calculates an incident light amount representing an amount of light incident on the eyes of the target person using the acquired image. A reference pupil size determination unit (8) determines a reference pupil size based on the calculated incident light amount. A pupil size calculation unit (10) calculates a pupil size of the target person using the acquired image. An interest determination unit (12) determines an interest of the target person in the object by comparing the determined reference pupil size with the calculated pupil size.

公开(公告)号：US11837335B2

公开(公告)日：2023-12-05

申请号：US17680496

申请日：2022-02-25

Applicant: NEC Corporation

Inventor： Takashi Shibata ,  Shoji Yachida ,  Chisato Funayama ,  Masato Tsukada ,  Yuka Ogino ,  Keiichi Chono ,  Emi Kitagawa ,  Yasuhiko Yoshida ,  Yusuke Mori ,  Toru Takahashi

IPC: G16H10/60 ,  G06F16/532 ,  G06K7/14 ,  G06V40/19 ,  G06F21/32

CPC classification number: G16H10/60 ,  G06F16/532 ,  G06K7/1413 ,  G06V40/19 ,  G06F21/32 ,  G06K7/1417

Abstract: A first-aid information provision system of the example embodiments includes: an information display device that includes first capture means for capturing an iris image, code acquisition means for acquiring a code associated with the captured iris image, and code display means for displaying the acquired code; and an information output device that includes second capture means for imaging the code displayed by the information display device, first-aid information acquisition means for acquiring first-aid information about an individual associated with the iris image by using the imaged code, and first-aid information output means for outputting the first-aid information.

公开(公告)号：US11816928B2

公开(公告)日：2023-11-14

申请号：US17683620

申请日：2022-03-01

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

IPC: G06V40/19 ,  G06V40/50 ,  G06V40/18

CPC classification number: G06V40/19 ,  G06V40/18 ,  G06V40/50

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.

公开(公告)号：US11763598B2

公开(公告)日：2023-09-19

申请号：US17312614

申请日：2018-12-18

Applicant: NEC Corporation

Inventor： Shoji Yachida

IPC: G06V40/16 ,  G06V40/19 ,  G06V10/80 ,  G06V10/50 ,  G06V40/18

CPC classification number: G06V40/171 ,  G06V10/50 ,  G06V10/803 ,  G06V40/166 ,  G06V40/19 ,  G06V40/193

Abstract: An image processing 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 visible image of a face; receive a near-infrared image of the face; adjust brightness of the visible image based on a frequency distribution of pixel values of the visible image and a frequency distribution of pixel values of the near-infrared image; specify a relative position at which the visible image is related to the near-infrared image; invert adjusted brightness of the visible image; detect a region of a pupil from a synthetic image obtained by adding up the visible image the brightness of which is inverted and the near-infrared image based on the relative position; and output information on the detected pupil.

公开(公告)号：US11756338B2

公开(公告)日：2023-09-12

申请号：US17682000

申请日：2022-02-28

Applicant: NEC Corporation

Inventor： Takashi Shibata ,  Shoji Yachida ,  Chisato Funayama ,  Masato Tsukada ,  Yuka Ogino ,  Keiichi Chono ,  Emi Kitagawa ,  Yasuhiko Yoshida ,  Yusuke Mori

IPC: G06V40/70 ,  G06V40/18 ,  G06V20/52 ,  G06V40/16 ,  G06V40/19 ,  G06V40/10

CPC classification number: G06V40/70 ,  G06V20/52 ,  G06V40/103 ,  G06V40/171 ,  G06V40/19 ,  G06V40/197 ,  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.

公开(公告)号：US11756336B2

公开(公告)日：2023-09-12

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

IPC: G06V40/18 ,  G06V40/19 ,  G06V40/20 ,  G06V40/70 ,  G06V40/10 ,  G06V40/16 ,  G06V10/764

CPC classification number: G06V40/197 ,  G06V10/764 ,  G06V40/103 ,  G06V40/172 ,  G06V40/19 ,  G06V40/25 ,  G06V40/70

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.