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公开(公告)号：US20220084312A1
公开(公告)日：2022-03-17
申请号：US17424809
申请日：2019-01-25
Applicant: NEC Corporation
Inventor： Jianquan LIU , Liting ZHOU
Abstract: A processing apparatus (10) including: an event extraction unit (11) that extracts, for each image of a time-series image group, an event in which a person and an object relate to each other; an event information generation unit (12) that generates event information indicating a time-series change of a first event defined by a first person, a first object, and a first relationship between a person and an object and also indicating a time-series change of a second event defined by a second person, a second object, and a second relationship between a person and an object; a causal relationship computation unit (13) that computes a score indicating a causal relationship between the first event and the second event; and an output unit (14) that outputs information indicating the first event and the second event for which the score satisfies a predetermined condition.
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公开(公告)号：US20210127056A1
公开(公告)日：2021-04-29
申请号：US16965340
申请日：2018-10-18
Applicant: NEC CORPORATION
Inventor： Jianquan LIU , Maguell Luka Timir Lano SANDIFORT
Abstract: Provided is a processing apparatus (10) including a person detection unit (11) that detects a person from an image generated by a camera that photographs a target area, a computation unit (12) that analyzes the image and computes, for each person, a stay time in the target area and a degree of bias of an appearance position in the target area, and a target person extraction unit (13) that extracts a target person who is a person for whom a computation result by the computation unit (12) satisfies a predetermined condition.
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公开(公告)号：US20210082103A1
公开(公告)日：2021-03-18
申请号：US17095460
申请日：2020-11-11
Applicant: NEC CORPORATION
Inventor： Jianquan LIU , Ka Wai YUNG
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.
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公开(公告)号：US20200372070A1
公开(公告)日：2020-11-26
申请号：US16767953
申请日：2018-10-18
Applicant: NEC Corporation
Inventor： Jianquan LIU
IPC: G06F16/783 , G06F16/78 , G06F16/583 , G06F16/58 , G06T7/246
Abstract: A server (20) stores person information in which a feature of an appearance and a feature of a motion of a person extracted from a video are associated with each other, searches for the person information using input information received from a terminal apparatus (10) as a key, and returns a search result to the terminal apparatus (10). The terminal apparatus (10) acquires and stores a part or a whole of the person information stored in the server (20) from the server (20), performs a search using the input information as a key, and displays the search result on a display as a candidate of information to be input in an input field.
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公开(公告)号：US20200184483A1
公开(公告)日：2020-06-11
申请号：US16342298
申请日：2017-07-27
Applicant: NEC CORPORATION
Inventor： Jianquan LIU , Shoji NISHIMURA , Yasufumi HIRAKAWA
Abstract: An acquisition unit (2020) acquires a combination of person information and transaction information for a first transaction. The person information is information representing a person who executes a transaction. The transaction information is various kinds of information regarding the transaction. A storage device (10) stores transaction information of each transaction. Using the person information of the first transaction acquired by the acquisition unit (2020), a detection unit (2040) acquires transaction information of a transaction (second transaction), which is executed by a person having a high degree of similarity with a person who executes the first transaction, from the storage device (10). The detection unit (2040) detects an abnormal transaction using the transaction information of the first transaction and the transaction information of the second transaction.
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Patent Agency Ranking
36.发明公开公开(公告)号：US20240331365A1
公开(公告)日：2024-10-03
申请号：US18739422
申请日：2024-06-11
Applicant: NEC Corporation
Inventor： Jianquan LIU , Junnan Li
IPC: G06V10/774 , G06T7/70
CPC classification number: G06V10/7747 , G06T7/70 , G06T2207/20081
Abstract: The present invention provides a processing system (10) including: a sample image generation unit (11) that generates a plurality of sample images being each associated with a partial region of a first image generated using a first lens; an estimation unit (12) that generates an image content estimation result indicating a content for each of the sample images using an estimation model generated by machine learning using a second image generated using a second lens differing from the first lens; a task execution unit (14) that estimates a relative positional relationship of a plurality of the sample images in the first image; a determination unit (15) that determines whether an estimation result of the relative positional relationship is correct; and a correction unit (16) that corrects a value of a parameter of the estimation model when the estimation result of the relative positional relationship is determined to be incorrect.
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公开(公告)号：US20240126806A1
公开(公告)日：2024-04-18
申请号：US18275765
申请日：2021-05-26
Applicant: NEC Corporation
Inventor： Noboru YOSHIDA , Jianquan LIU
IPC: G06F16/483 , G06F16/432 , G06V10/44 , G06V10/80
CPC classification number: G06F16/483 , G06F16/434 , G06V10/44 , G06V10/806
Abstract: A query acquisition unit (109) acquires a first query moving image having a plurality of time-series first frame images and at least one second query moving image having a plurality of time-series second frame images. A feature value computing unit (103) computes a feature value of a keypoint detected from an object being included in each of the first frame images and the second frame images. A correspondence relationship determination unit (114) determines a second frame image associated with each of the plurality of first frame images. An integration unit (113) performs, for a plurality of combinations of the first frame image and the second frame image associated with each other, processing of integrating the feature values computed from each of the first frame image and the second frame image, and thereby generates an integrated query in which the integrated feature values are arranged in time series.
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38.发明公开公开(公告)号：US20240061876A1
公开(公告)日：2024-02-22
申请号：US18275123
申请日：2021-07-14
Applicant: NEC Corporation
Inventor： Tingting Dong , Jianquan LIU , daisuke SUGIDOMARI , Taisuke SHIMADA , Yusuke TAKAHASHI
IPC: G06F16/538 , G06V40/10 , G06V20/52 , G06F16/55
CPC classification number: G06F16/538 , G06V40/10 , G06V20/52 , G06F16/55
Abstract: The present disclosure is to provide an information processing apparatus capable of improving accuracy of search results. The information processing apparatus (10) according to the present disclosure includes: a management unit (11) that manages at least one object, an attribute by which the object is classified, and a certainty factor indicating a probability that the object has the attribute in association with each other; a calculation unit (12) that, using a certainty factor of an attribute designated as a search condition and a certainty factor being managed in association with an attribute identical or similar to the attribute designated as the search condition, calculates a score indicating a matching degree of the object with the search condition; and a display unit (13) that displays the object based on the calculated score.
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39.发明公开公开(公告)号：US20230368576A1
公开(公告)日：2023-11-16
申请号：US18026407
申请日：2020-09-25
Applicant: NEC Corporation
Inventor： Karen STEPHEN , Jianquan LIU
CPC classification number: G06V40/20 , G06T3/60 , G06T7/66 , G06V2201/07 , G06T2207/20132
Abstract: The present invention provides an image processing apparatus (10) including: a first estimation unit (11) performing image analysis on a panoramic image acquired by panoramically expanding a fisheye image generated by a fisheye lens camera and estimating a human action indicated by the panoramic image; a second estimation unit (12) performing image analysis on a partial fisheye image being a partial area in the fisheye image without panoramic expansion and estimating a human action indicated by the partial fisheye image; and a third estimation unit (13) estimating a human action indicated by the fisheye image, based on an estimation result based on the panoramic image and an estimation result based on the partial fisheye image.
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公开(公告)号：US20230351571A1
公开(公告)日：2023-11-02
申请号：US18026520
申请日：2020-09-25
Applicant: NEC Corporation
Inventor： Jianquan LIU , Youhei SASAKI , Yuta NAMIKI
IPC: G06T7/00 , G06F3/0482
CPC classification number: G06T7/00 , G06F3/0482
Abstract: The present invention provides an image analysis system (10) including: a plurality of image analysis units (11); a selection unit (12) that selects at least one of a plurality of the image analysis units (11); an analysis control unit (15) that causes the selected image analysis unit (11) to analyze an image specified by a user; and an output unit (17) that outputs an analysis result of the image.
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