公开(公告)号：US20250029423A1

公开(公告)日：2025-01-23

申请号：US18711934

申请日：2021-11-29

Applicant: NEC Corporation

Inventor： Ryo KAWAI ,  Noboru YOSHIDA ,  Jianquan LIU

IPC: G06V40/20 ,  G06Q10/0639 ,  G06T7/246 ,  G06V10/62

Abstract: An action evaluation system includes at least one memory storing instructions, and at least one processor configured to execute the instructions to detect a predetermined unit action associated with a posture of a worker from skeleton data about a structure of a body of the worker extracted from image data obtained by capturing a series of work actions performed by the worker on a work object, determine whether or not the unit action is similar to a predetermined registration action and output a result of the determination.

公开(公告)号：US20250005770A1

公开(公告)日：2025-01-02

申请号：US18711254

申请日：2022-03-31

Applicant: NEC Corporation

Inventor： Naoki SHINDOU ,  Jianquan LIU ,  Yuta NAMIKI ,  Youhei SASAKI

IPC: G06T7/246 ,  G06T7/00

Abstract: A movement information generation apparatus (10) is an apparatus that assists rehabilitation carried out by a subject, and includes an image processing unit (120) and an output unit (130). The image processing unit (120) generates first movement information indicating movement of the subject at first timing by processing a first image acquired by capturing the subject at the first timing. The output unit (130) determines a difference between the first movement information and comparison movement information indicating movement being a comparison target, and outputs output information being information relating to the difference.

公开(公告)号：US20230298445A1

公开(公告)日：2023-09-21

申请号：US18010158

申请日：2020-06-24

Applicant: NEC Corporation

Inventor： Jianquan LIU ,  Kenta ISHIHARA

IPC: G08B13/196

CPC classification number: G08B13/19613 ,  G08B13/19604

Abstract: The present invention provides a learning apparatus (10) including: an acquisition unit (11) that acquires an image; a similarity computation unit (12) that computes a similarity between the acquired image, and a first image being accumulated in advance and indicating an abnormal state; a registration unit (13) that registers, as a second image indicating a normal state, the acquired image whose similarity is equal to or less than a first reference value; and a learning unit (14) that generates an estimation model for discriminating between normal and abnormal by machine learning using the first image and the second image.

公开(公告)号：US20230214421A1

公开(公告)日：2023-07-06

申请号：US18009155

申请日：2020-06-10

Applicant: NEC Corporation

Inventor： Noboru YOSHIDA ,  Yandong PAN ,  Ryo KAWAI ,  Jianquan LIU ,  Shoji NISHIMURA

IPC: G06F16/583 ,  G06F16/532 ,  G06T7/62 ,  G06T7/73 ,  G06V10/44 ,  G06V10/74

CPC classification number: G06F16/5854 ,  G06F16/532 ,  G06T7/62 ,  G06T7/73 ,  G06V10/44 ,  G06V10/761 ,  G06T2207/20044 ,  G06T2207/30196

Abstract: The present invention provides an image processing apparatus including: an image acquisition unit acquiring a candidate of a query image; a skeletal structure detection unit detecting a two-dimensional skeletal structure of a person included in a candidate of the query image; a query evaluation unit computing an evaluation value of a candidate of the query image, based on a detection result of the two-dimensional skeletal structure; a selection unit selecting a query image out of candidates of the query image, based on the evaluation value; a feature value computation unit computing a feature value of the two-dimensional skeletal structure detected from the query image; and a retrieval unit retrieving an analysis target image including a person in a pose similar to a pose of a person included in the query image out of analysis target images, based on a degree of similarity of the computed feature value.

公开(公告)号：US20220222967A1

公开(公告)日：2022-07-14

申请号：US17610200

申请日：2020-05-08

Applicant: NEC Corporation

Inventor： Satoshi YOSHIDA ,  Jianquan LIU ,  Shoji NISHIMURA

IPC: G06V40/16 ,  G06V10/74 ,  G06V10/77 ,  G06V10/771

Abstract: A retrieval apparatus (2000) is accessible to a storage region (50) in which a plurality of pieces of object information (100) are stored. The object information (100) includes a feature value set (104) being a set of a plurality of feature values acquired regarding an object. The retrieval apparatus (2000) acquires a feature value set (retrieval target set (60)) being a retrieval target, and determines the object information (100) having the feature value set (104) similar to the retrieval target set (60) by comparing the retrieval target set (60) with the feature value set (104). Herein, in a case where a feature value set satisfies a predetermined condition, the retrieval apparatus (2000) performs comparison between the feature value set and another feature value set by using a part of feature values within the feature value set. Further, the retrieval apparatus (2000) outputs output information relating to the determined object information (100).

公开(公告)号：US20200242155A1

公开(公告)日：2020-07-30

申请号：US16755930

申请日：2018-10-15

Applicant: NEC Corporation

Inventor： Jianquan LIU ,  Sheng HU

IPC: G06F16/783 ,  G06F16/71 ,  G06K9/00

Abstract: A search apparatus (10) including a storage unit (11) that stores video index information including correspondence information which associates a type of one or a plurality of objects extracted from a video with a motion of the object, an acquisition unit (12) that acquires a search key associating the type of one or the plurality of objects as a search target with the motion of the object, and a search unit (13) that searches the video index information on the basis of the search key is provided.

公开(公告)号：US20190244342A1

公开(公告)日：2019-08-08

申请号：US16382282

申请日：2019-04-12

Applicant: NEC Corporation

Inventor： Jianquan LIU ,  Ka Wai YUNG

IPC: G06T7/00 ,  G06T7/187 ,  H04N7/18 ,  G06K9/00 ,  G06T7/11

CPC classification number: G06T7/0002 ,  G06K9/00765 ,  G06Q50/265 ,  G06T7/11 ,  G06T7/187 ,  G06T2207/30242 ,  H04N7/188

Abstract: The analysis apparatus (2000) includes a co-appearance event extraction unit (2020) and a frequent event detection unit (2040). The co-appearance event extraction unit (2020) extracts co-appearance events of two or more persons from each of a plurality of sub video frame sequences. The sub video frame sequence is included in a video frame sequence. The analysis apparatus (2000) may obtain the plurality of sub video frame sequences from one or more of the video frame sequences. The one or more of the video frame sequences may be generated by one or more of surveillance cameras. Each of the sub video frame sequences has a predetermined time length. The frequent event detection unit (2040) detects co-appearance events of the same persons occurring at a frequency higher than or equal to a pre-determined frequency threshold.

公开(公告)号：US20190035106A1

公开(公告)日：2019-01-31

申请号：US16080745

申请日：2017-02-13

Applicant: NEC Corporation

Inventor： Yasufumi HIRAKAWA ,  Jianquan LIU ,  Shoji NISHIMURA ,  Takuya ARAKI

IPC: G06T7/70 ,  H04N7/18 ,  G06K9/00

Abstract: Provided is an analysis apparatus (10) including a person extraction unit (11) that analyzes video data to extract a person, a time calculation unit (12) that calculates a continuous appearance time period for which the extracted person has been continuously present in a predetermined area and a reappearance time interval until the extracted person reappears in the predetermined area for each extracted person, and an inference unit (13) that infers a characteristic of the extracted person on the basis of the continuous appearance time period and the reappearance time interval.

公开(公告)号：US20190026882A1

公开(公告)日：2019-01-24

申请号：US15755607

申请日：2015-08-28

Applicant: NEC CORPORATION

Inventor： Jianquan LIU ,  Ka Wai YUNG

IPC: G06T7/00 ,  G06T7/11 ,  G06T7/187 ,  H04N7/18

Abstract: The analysis apparatus (2000) includes a co-appearance event extraction unit (2020) and a frequent event detection unit (2040). The co-appearance event extraction unit (2020) extracts co-appearance events of two or more persons from each of a plurality of sub video frame sequences. The sub video frame sequence is included in a video frame sequence. The analysis apparatus (2000) may obtain the plurality of sub video frame sequences from one or more of the video frame sequences. The one or more of the video frame sequences may be generated by one or more of surveillance cameras. Each of the sub video frame sequences has a predetermined time length. The frequent event detection unit (2040) detects co-appearance events of the same persons occurring at a frequency higher than or equal to a pre-determined frequency threshold.

公开(公告)号：US20250095375A1

公开(公告)日：2025-03-20

申请号：US18726875

申请日：2022-03-16

Applicant: NEC Corporation

Inventor： Tingting DONG ,  Jianquan LIU ,  Karen STEPHEN ,  Noboru YOSHIDA ,  Ryo KAWAI ,  Satoshi YAMAZAKI ,  Naoki SHINDOU ,  Yuta NAMIKI ,  Youhei SASAKI

IPC: G06V20/52 ,  G06T7/20 ,  G06T7/70

Abstract: An image processing apparatus (10) according to the present invention includes an acquisition unit (11) that acquires a moving image capturing a target area, an analysis unit (12) that generates, based on the moving image, external appearance information indicating at least one of a type of clothing, a type of a personal item, a pose, and a movement of a target person being included in the moving image, and appearance extent information indicating an extent to which the target person appears in the moving image, and an inference unit (13) that infers a purpose for which the target person is present in the target area, based on the external appearance information and the appearance extent information.