公开(公告)号：US20240107009A1

公开(公告)日：2024-03-28

申请号：US18273150

申请日：2021-12-06

Applicant: NEC Corporation

Inventor： Kenta IIDA ,  Keiichi Chono

IPC: H04N19/11 ,  H04N19/124 ,  H04N19/18 ,  H04N19/593

CPC classification number: H04N19/11 ,  H04N19/124 ,  H04N19/18 ,  H04N19/593

Abstract: The video coding device calculates a first value representing energy of the prediction error signals of the block to be processed, eliminates specified transform coefficients when at least one of a width and a height of the block to be processed exceeds a predetermined value and calculates a second value representing energy of the transform coefficients other than the eliminated transform coefficients, and decides not to make the candidate of prediction mode the optimal prediction mode, without executing quantizing, arithmetic-coding and local decoding, in a case where the second value is smaller than a predetermined degree as compared to the first value.

公开(公告)号：US20240037989A1

公开(公告)日：2024-02-01

申请号：US18484592

申请日：2023-10-11

Applicant: NEC Corporation

Inventor： Keiichi Chono ,  Yuka Ogino ,  Ryuichi Akashi

IPC: G06V40/18 ,  G06V10/141

CPC classification number: G06V40/197 ,  G06V10/141

Abstract: An iris recognition apparatus is provided with: an irradiating device that is capable of irradiating light to a target person to be recognized; an acquiring device that acquires a first image which imaged a first imaging range including at least a face of the target person; and a determining device that determines an irradiation mode of light irradiated from the irradiating device to the target person when imaging a second image including an area, which includes an eye of the target person, and corresponding to a second imaging range, which is narrower than the first imaging range, based on the first image.

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：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.

公开(公告)号：US11734957B2

公开(公告)日：2023-08-22

申请号：US17431539

申请日：2020-02-12

Applicant: NEC Corporation

Inventor： Keiichi Chono ,  Chisato Funayama ,  Masato Tsukada

IPC: G06V40/18 ,  G06V10/25 ,  G06V10/141 ,  G06V40/19

CPC classification number: G06V40/193 ,  G06V10/141 ,  G06V10/25 ,  G06V40/19

Abstract: A controller controls the readout of an image from iris image pick-up devices for performing image pick-up of an iris of a subject. In the control of the readout of an image from the iris image pick-up devices, the controller sets a region of interest to be treated as a target of the image readout. The controller stores past information, and in the case of performing image processing on the same subject, the controller determines whether or not an eye region of the subject was successfully covered by the region of interest used in the past. In the case of determining that the eye region of the subject was not successfully covered, the controller corrects the readout of an image from the iris image pick-up devices.

公开(公告)号：US11729501B2

公开(公告)日：2023-08-15

申请号：US17982806

申请日：2022-11-08

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: H04N23/67 ,  G03B13/36 ,  H04N23/667

CPC classification number: H04N23/671 ,  G03B13/36 ,  H04N23/667

Abstract: To provide a system, a method and the like for acquiring more images or more quickly focused images. A control device acquires information regarding a situation of a range captured by an imaging device, determines a mode according to an assumed situation of the range captured by the imaging device among a plurality of focusing modes, and transmits designation information specifying the determined mode to the imaging device. The imaging device receives the designation information from the control device, and captures an image using the mode specified by the received designation information.

公开(公告)号：US11706457B2

公开(公告)日：2023-07-18

申请号：US17554944

申请日：2021-12-17

Applicant: NEC Corporation

Inventor： Hirofumi Aoki ,  Keiichi Chono ,  Masato Tsukada

IPC: H04N19/159 ,  H04N19/196 ,  H04N19/70 ,  H04N19/107 ,  H04N19/68 ,  H04N19/50 ,  H04N19/105 ,  H04N19/167 ,  H04N19/174 ,  H04N19/44

CPC classification number: H04N19/68 ,  H04N19/105 ,  H04N19/107 ,  H04N19/159 ,  H04N19/167 ,  H04N19/174 ,  H04N19/196 ,  H04N19/44 ,  H04N19/50 ,  H04N19/70

Abstract: A video decoding device includes a demultiplexing unit which demultiplexes a video bitstream including video data of an encoded slice, Supplemental-Enhancement-Information having first information indicating a refresh group of segments in gradual refresh, and Supplemental-Enhancement-Information having second information indicating segments where a refresh has completed in a current picture, an extracting unit which extracts the second information from a message which is part of the demultiplexed Supplemental-Enhancement-Information, and a video decoding unit which decodes image data from the demultiplexed video bitstream by using at least inter picture prediction.