Systems and methods for detecting anomalies in geographic areas

    公开(公告)号:US11164438B2

    公开(公告)日:2021-11-02

    申请号:US16837781

    申请日:2020-04-01

    Abstract: Methods for detecting anomalies in a geographic area include receiving, from an electronic computing device, expected relationship data indicating expected relationships between a plurality of entities within the geographic area; detecting the plurality of entities within the geographic area; generating observed relationship data indicating observed relationships between the plurality of entities; identifying the expected relationships between the plurality of entities based on the expected relationship data; determining that a given observed relationship between two entities of the plurality of entities is likely to represent an anomaly based on the expected relationship data; and providing an electronic notification to a safety officer, the electronic notification indicating that the given observed relationship is likely to represent the anomaly.

    System and method for summarization of search results

    公开(公告)号:US12072920B2

    公开(公告)日:2024-08-27

    申请号:US18064405

    申请日:2022-12-12

    CPC classification number: G06F16/345 G06F16/3331

    Abstract: Techniques for summarization of search results are provided. A similarity search query comprising at least one search criteria is received. The similarity search query is executed on at least one data source containing a plurality of images associated with metadata responsive to the search criteria. A plurality of search results response to the similarity search query is received from the at least one data source. The plurality of search results is clustered based on the metadata associated with the plurality of search results excluding the similarity criteria. The plurality of search results is summarized based on the results of the clustering. The summarization is displayed in a display view. An interactive user interface is provided to refine the plurality of search results based on the summarization.

    Device, method and system for estimating elevation in images from camera devices

    公开(公告)号:US11580661B2

    公开(公告)日:2023-02-14

    申请号:US17101359

    申请日:2020-11-23

    Inventor: Chia Ying Lee

    Abstract: A device, method and system for estimating elevation in images from camera devices is provided. The device detects humans at respective positions in images from a camera device, the camera device having a fixed orientation and fixed focal length. The device estimates, for the humans in the images, respective elevations of the humans, relative to the camera device, at the respective positions based at least on camera device parameters defining the fixed orientation and the fixed focal length. The device associates the respective elevations with the respective positions in the images. The device determines, using the respective elevations associated with the respective positions, a function that estimates elevation in an image from the camera device, using a respective image position coordinate as an input. The device provides the function to a video analytics engine to determine relative real-world positions in subsequent images from the camera device.

    AUTOMATIC CAMERA CALIBRATION
    7.
    发明申请

    公开(公告)号:US20240394919A1

    公开(公告)日:2024-11-28

    申请号:US18322217

    申请日:2023-05-23

    Abstract: Systems and method for camera calibration. In one example, the camera includes an electronic processor configured to obtain a bounding box in a captured image, the bounding box bounding a person in the image and having a lowermost vertical coordinate and an uppermost vertical coordinate. The electronic processor determines an initial estimation of values of a set of camera parameters Θ and a current estimation of values of the set of camera parameters Θ based on the initial estimation. The electronic processor iteratively updates the current estimation of values of the set of camera parameters Θ by determining feet coordinates within the bounding box, determining a vertical head coordinate, and updating the current estimation of values of the set of camera parameters Θ by reducing a difference between the vertical head coordinate and the uppermost vertical coordinate of the bounding box.

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