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    Camera parameter estimation device, method, and program
    84.
    发明授权
    Camera parameter estimation device, method, and program 有权

    公开(公告)号：US11122195B2

    公开(公告)日：2021-09-14

    申请号：US16497126

    申请日：2017-03-27

    Applicant: NEC CORPORATION

    Inventor： Hiroo Ikeda

    IPC: H04N5/232 ,  G06T5/00 ,  G01B11/26 ,  G06T3/00 ,  G06T3/20 ,  H04N7/18 ,  G06T7/80

    Abstract: A projection image generation unit 81 applies a plurality of projection schemes that use the radius of a visual field region of a fisheye-lens camera to an image in which an object including a straight line is imaged by the fisheye-lens camera, and generates a plurality of projection images. A projection scheme determination unit 82 selects one of the plurality of projection images on the basis of the linearity of each of the straight lines included in the projection images and determines a projection scheme on the basis of the selected projection image. An output unit 83 outputs an internal parameter of the fisheye-lens camera that corresponds to the determined projection scheme.

    Surveillance system, surveillance method, and program
    87.
    发明授权
    Surveillance system, surveillance method, and program 有权

    公开(公告)号：US10887561B2

    公开(公告)日：2021-01-05

    申请号：US16352186

    申请日：2019-03-13

    Applicant: NEC CORPORATION

    Inventor： Ryoma Oami ,  Katsuhiko Takahashi ,  Yuusuke Konishi ,  Hiroo Ikeda ,  Junko Nakagawa ,  Kosuke Yoshimi ,  Yukie Ebiyama ,  Ryo Kawai ,  Takuya Ogawa

    IPC: H04N7/18 ,  G08B25/10 ,  H04M11/00 ,  G08B21/22 ,  G06Q10/06 ,  G08B25/04

    Abstract: A surveillance system (1) includes an area information acquisition unit (101), a position information acquisition unit (102), a candidate determination unit (103), and a notification unit (104). The area information acquisition unit (101) acquires information of a surveillance-desired area. The position information acquisition unit (102) acquires pieces of position information of a plurality of portable terminals (20), each portable terminal performing surveillance using an image capturing unit. The candidate determination unit (103) determines a candidate portable terminal (20) to be moved to the surveillance-desired area from among the plurality of portable terminals (20) based on the acquired pieces of position information of the plurality of portable terminals (20). The notification unit (104) outputs a notification to the candidate portable terminal requesting to move to the surveillance-desired area.

    Crowd type classification system, crowd type classification method and storage medium for storing crowd type classification program
    88.
    发明授权
    Crowd type classification system, crowd type classification method and storage medium for storing crowd type classification program 有权

    公开(公告)号：US10789484B2

    公开(公告)日：2020-09-29

    申请号：US16082763

    申请日：2017-02-28

    Applicant: NEC CORPORATION

    Inventor： Hiroo Ikeda

    IPC: G06K9/00 ,  G06T7/70 ,  G06T7/60 ,  G06T7/246 ,  G06K9/62

    Abstract: A crowd type classification system of an aspect of the present invention includes: a staying crowd detection unit that detects a local region indicating a crowd in staying from a plurality of local regions determined in an image acquired by an image acquisition device; a crowd direction estimation unit that estimates a direction of the crowd for an image of a part corresponding to the detected local region, and appends the direction of the crowd to the local region; and a crowd type classification unit that classifies a type of the crowd including a plurality of staying persons for the local region to which the direction is appended by using a relative vector indicating a relative positional relationship between two local regions and directions of crowds in the two local regions, and outputs the type and positions of the crowds.

    Placement information registration device, placement information registration method, and placement information registration program
    89.
    发明授权
    Placement information registration device, placement information registration method, and placement information registration program 有权

    公开(公告)号：US10762467B2

    公开(公告)日：2020-09-01

    申请号：US14419962

    申请日：2013-06-28

    Applicant: NEC Corporation

    Inventor： Hiroo Harada ,  Ryoma Oami ,  Yuusuke Konishi ,  Hiroo Ikeda

    IPC: G06Q30/02 ,  H01Q1/22 ,  G06Q10/08 ,  G06Q50/28

    Abstract: Provided is an art of registration and management of the placement positions of objects to be managed can be easily and reliably performed. A device includes an identification information receiving unit 11 that receives identification information that can identify an object to be managed and acquisition time of the identification information; a position information receiving unit 12 that receives position information relating to a position of a person who moves around in a target floor while carrying equipment configured to acquire the identification information; and a placement information registration unit 13 that registers the placement information of the object to be managed by registering the position information received by the unit 12 at the same time or almost at the same time as the acquisition time of the identification information that is received by the unit 11 in association with the identification information.

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