公开(公告)号：US20240153310A1

公开(公告)日：2024-05-09

申请号：US17776314

申请日：2021-09-14

Applicant: NEC Corporation

Inventor： Ryo YAMAKABE ,  Ryuichi AKASHl ,  Yuka OGINO ,  Kosuke YOSHIMI ,  Masato TSUKADA

IPC: G06V40/18 ,  G06V10/25 ,  G06V10/74 ,  H04N23/67

CPC classification number: G06V40/193 ,  G06V10/25 ,  G06V10/761 ,  H04N23/67

Abstract: An information processing system (10) comprises: a distance acquisition unit (110) that specifies an iris area containing an iris of a target from a visible-light image of the target, and acquires an iris distance that is a distance to the iris area; an iris image acquisition unit (120) that acquires an iris image of the target by changing a focal length according to the iris distance; a score computing unit (130) that calculates a score relating to deviation of a focus in the iris image, based on the iris image; and a correlation update unit (140) that updates correlation between the iris distance and the focal length at a moment of acquisition of the iris image, based on the score. According to such an information processing system, since the correlation is updated with good accuracy, it is possible to acquire the appropriate iris image.

公开(公告)号：US20250047973A1

公开(公告)日：2025-02-06

申请号：US18836793

申请日：2022-02-15

Applicant: NEC Corporation

Inventor： Ryo YAMAKABE ,  Akito SUGA ,  Ryoma OAMI ,  Ryuichi AKASHI ,  Takahiro TOIZUMI ,  Masato TSUKADA ,  Chisato FUNAYAMA ,  Yuho SHOJI ,  Masato SASAKI ,  Yuka OGINO ,  Kosuke YOSHIMI

IPC: H04N23/60 ,  G06T7/00

Abstract: An information processing apparatus includes: a guide generation unit that generates guide information about capturing a target image on the basis of the target image; a guide output unit that outputs the guide information; and a guide evaluation unit that evaluates the guide information on the basis of the target image captured before and after an output of the guide information. According to the information processing apparatus, the guide information may be properly evaluated.

公开(公告)号：US20240153311A1

公开(公告)日：2024-05-09

申请号：US17776328

申请日：2021-08-31

Applicant: NEC Corporation

Inventor： Ryuichi AKASHI ,  Kosuke YOSHIMI ,  Yuka OGINO ,  Ryo YAMAKABE

IPC: G06V40/18 ,  G06F3/01 ,  G06T7/20 ,  G06V10/141

CPC classification number: G06V40/197 ,  G06F3/013 ,  G06T7/20 ,  G06V10/141 ,  G06V40/193 ,  G06V2201/07

Abstract: An illumination control apparatus 3 comprises: a detection unit 311 that detects an iris area IA and a reflection area RA in an eye image IMG_E generated by imaging eyes of a target being illuminated with illumination light IL from an illumination apparatus 2, the iris area IA and the reflection area RA corresponding to an iris of the eyes and a reflection image of the illumination light respectively; and an illumination control unit 312 that controls the illumination apparatus based on an overlap state between the iris area and the reflection area.

公开(公告)号：US20230100016A1

公开(公告)日：2023-03-30

申请号：US17801925

申请日：2020-02-28

Applicant: NEC Corporation

Inventor： Ryo YAMAKABE ,  Yuka OGINO ,  Keiichi CHONO

IPC: H04N23/67 ,  G06V40/18 ,  G02B7/04 ,  G03B13/36

Abstract: The image acquiring device 10 includes the voltage control unit 30 which generates first voltage information that can identify voltage applied to the first variable-focus lens 20A included in the first imaging unit 20 installed in a position where a subject can be photographed and whose focal length changes in accordance with an applied voltage, and generates second voltage information that can identify voltage applied to the second variable-focus lens 21A included in the second imaging unit 21 installed in the position where the subject can be photographed and whose focal length changes in accordance with an applied voltage, and the image judgment unit 40 which inputs images from the first imaging unit 20 and the second imaging unit 21, and selects one image taken at an in-focus position among input images, wherein the voltage control unit 30 generates information, as the first voltage information, that can identify each voltage in a time series of voltages whose values change with time, and generates information, as the second voltage information, that can identify that each of the voltages identified by the first voltage information is applied to the second variable-focus lens 21A after a predetermined period of delay.

公开(公告)号：US20220383658A1

公开(公告)日：2022-12-01

申请号：US17772591

申请日：2019-11-05

Applicant: NEC Corporation ,  NEC Platforms, Ltd.

Inventor： Toshinobu OGATSU ,  Ryoma OAMI ,  Toshiyuki SASHIHARA ,  Takamichi MIYAMOTO ,  Ryuichi AKASHI ,  Ryo YAMAKABE ,  Daisuke SHIMADA

IPC: G06V40/16 ,  G06V10/141 ,  G06V40/18 ,  G06F21/32

Abstract: An imaging apparatus for authentication includes: a first imaging unit that obtains a first image used in a first authentication process by imaging a target person; a second imaging unit that obtains a second image used in a second image process by imaging the target person in an imaging range narrower than that of the first imaging unit; a drive unit that integrally drives the first imaging unit and the second imaging unit; and a drive control unit that controls the drive unit on the basis of the first image.