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

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

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：US20230171500A1

公开(公告)日：2023-06-01

申请号：US17922634

申请日：2020-05-14

Applicant: NEC Corporation

Inventor： Yuka OGINO ,  Keiichi Chono

IPC: H04N23/695 ,  H04N7/18 ,  G06T7/20

CPC classification number: H04N23/695 ,  H04N7/181 ,  G06T7/20 ,  G06V40/18

Abstract: An imaging system includes: an acquisition unit that obtains a plurality of images of a subject captured at different timing; an estimation unit that estimates a motion of the subject on the basis of the plurality of images; and a change unit that changes a set value of an imaging unit for imaging a particular part of the subject, in accordance with the movement of the subject. According to such an imaging system, it is possible to properly capture the images of the subject.

公开(公告)号：US20230156198A1

公开(公告)日：2023-05-18

申请号：US18099020

申请日：2023-01-19

Applicant: NEC Corporation

Inventor： Kenta SENZAKI ,  Yuzo Senda ,  Keiichi Chono ,  Hirofumi Aoki

IPC: H04N19/147 ,  H04N19/503 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/61 ,  H04N19/109 ,  H04N19/157 ,  H04N19/103 ,  H04N19/44

CPC classification number: H04N19/147 ,  H04N19/503 ,  H04N19/176 ,  H04N19/70 ,  H04N19/119 ,  H04N19/46 ,  H04N19/61 ,  H04N19/109 ,  H04N19/157 ,  H04N19/103 ,  H04N19/44 ,  H04N19/91

Abstract: A video decoding device for decoding video using inter prediction includes entropy decoding means for decoding an inter-PU partition type syntax; and decoding control means for making the entropy decoding means decode the inter-PU (Prediction Unit) partition type syntax of a CU (Coding Unit) to be decoded, based on whether the prediction mode of the CU to be decoded is an inter prediction mode and whether a size of the CU to be decoded is equal to a predetermined minimum inter-PU size.

公开(公告)号：US11647205B2

公开(公告)日：2023-05-09

申请号：US17685579

申请日：2022-03-03

Applicant: NEC Corporation

Inventor： Kenta Senzaki ,  Yuzo Senda ,  Keiichi Chono ,  Hirofumi Aoki

IPC: H04N11/02 ,  H04N19/139 ,  H04N19/61 ,  H04N19/109 ,  H04N19/119 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/147 ,  H04N19/70 ,  H04N19/91 ,  H04N19/65

CPC classification number: H04N19/139 ,  H04N19/109 ,  H04N19/119 ,  H04N19/147 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/61 ,  H04N19/70 ,  H04N19/65 ,  H04N19/91

Abstract: A video encoding device includes encoding control means 11 for controlling an inter-PU partition type of a CU to be encoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of an encoded image block contained in the image block having the predetermined area. A video decoding device includes decoding control means for controlling an inter-PU partition type of a CU to be decoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of a decoded image block contained in the image block having the predetermined area.

公开(公告)号：US20230075172A1

公开(公告)日：2023-03-09

申请号：US17799727

申请日：2020-02-27

Applicant: NEC Corporation

Inventor： Keiichi Chono

IPC: H04N5/232

Abstract: An imaging system (1) includes an imaging unit (2) configured to capture an eye of a target person, and a mode control unit (4) configured to select one of imaging modes including a first imaging mode that sets a capture volume for which a greatest distance from the imaging unit (2) in an optical axis direction of the imaging unit (2) is a first distance, and a second imaging mode that sets the capture volume for which the greatest distance from the imaging unit is a second distance, in which the second distance is greater than the first distance. With the imaging system (1), a balance between an image quality matching a purpose of use and a capturing time may be easily achieved.

公开(公告)号：US11496749B2

公开(公告)日：2022-11-08

申请号：US16984957

申请日：2020-08-04

Applicant: NEC CORPORATION

Inventor： Hirofumi Aoki ,  Keiichi Chono ,  Yuzo Senda ,  Kenta Senzaki

IPC: H04N7/12 ,  H04N19/159 ,  H04N19/196 ,  H04N19/593 ,  H04N19/124 ,  H04N19/157

Abstract: In a video decoding device, a quantization step size decoding unit calculates a quantization step size that controls a granularity of the inverse quantization by, based on an image prediction, selectively using a mean value of at least a quantization step size assigned to a leftwardly adjacent neighboring image block already decoded and a quantization step size assigned to a upwardly adjacent neighboring image block already decoded or a quantization step size assigned to an image block decoded immediately before.

公开(公告)号：US20220245228A1

公开(公告)日：2022-08-04

申请号：US17620551

申请日：2019-06-26

Applicant: NEC Corporation

Inventor： Yuka OGINO ,  Keiichi Chono

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

Abstract: An authentication system (1) is provided with: a first imaging apparatus (3) that obtains a first image (300) used for an authentication by capturing an image of a first imaging range; a second imaging apparatus (3) that obtains a second image (200) by capturing an image of a second imaging range that is wider than the first imaging range; and a control apparatus (6) that selects a target person (Ta) for the authentication on the basis of a target area (TA) in the second image that includes a predetermined portion (TP) of a person (T) and a reference area (RA) in the second image that corresponds to the first imaging range.

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

IPC: G06V40/18 ,  G06V10/22 ,  G06V10/60 ,  G06V40/19 ,  G06V40/20 ,  G06V40/70 ,  G06V40/10 ,  G06V40/16

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：US11323720B2

公开(公告)日：2022-05-03

申请号：US17060828

申请日：2020-10-01

Applicant: NEC CORPORATION

Inventor： Kenta Senzaki ,  Yuzo Senda ,  Keiichi Chono ,  Hirofumi Aoki

IPC: H04N11/02 ,  H04N19/139 ,  H04N19/61 ,  H04N19/109 ,  H04N19/119 ,  H04N19/176 ,  H04N19/46 ,  H04N19/51 ,  H04N19/147 ,  H04N19/70 ,  H04N19/91 ,  H04N19/65

Abstract: A video encoding device includes encoding control means 11 for controlling an inter-PU partition type of a CU to be encoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of an encoded image block contained in the image block having the predetermined area. A video decoding device includes decoding control means for controlling an inter-PU partition type of a CU to be decoded, based on the maximum number (PA) of motion vectors allowed for an image block having a predetermined area and the number (PB) of motion vectors of a decoded image block contained in the image block having the predetermined area.

公开(公告)号：US11310510B2

公开(公告)日：2022-04-19

申请号：US16910288

申请日：2020-06-24

Applicant: NEC CORPORATION

Inventor： Keiichi Chono ,  Yuzo Senda ,  Junji Tajime ,  Hirofumi Aoki ,  Kenta Senzaki

IPC: H04N19/156 ,  H04N19/503 ,  H04N19/176 ,  H04N19/46 ,  H04N19/61 ,  H04N19/593 ,  H04N19/12 ,  H04N19/172 ,  H04N19/184

Abstract: A video decoding device and method, including extracting PCM block size information including a threshold, from a bitstream, determining the threshold based on the extracted PCM block size information; parsing a PCM header from the bitstream with respect to an encoded block, only when said encoded block is prediction mode of intra prediction and a block size of said encoded block is equal to or greater than the determined threshold, controlling an entropy decoding process and a PCM decoding process based on the parsed PCM header; parsing transformed data of a prediction error data of an image in the bitstream; and PCM-decoding PCM data of the image in the bitstream, wherein the decoding performs the decoding operation based on the prediction mode being intra prediction and based on the block size of the encoded block being equal to or greater than the determined threshold.