Automatic multi-plate recognition

    公开(公告)号:US11978267B2

    公开(公告)日:2024-05-07

    申请号:US18168530

    申请日:2023-02-13

    Applicant: Verkada Inc.

    CPC classification number: G06V20/625 G06V10/774 G06V20/54 G06V30/148

    Abstract: A method and related system operations include obtaining a video stream with an image sensor of a camera device, detecting a plurality of target objects by executing a neural network model based on the video stream with a vision processor unit of the camera device. The method also includes generating a plurality of bounding boxes, determining a plurality of character sequences by, for each respective bounding box of the plurality of bounding boxes, performing a set of optical character recognition (OCR) operations to determine a respective character sequence of the plurality of character sequences. The method also includes updating a plurality of tracklets to indicate the plurality of bounding boxes and storing the plurality of tracklets in association with the plurality of character sequences in a memory of the camera device.

    Methods and apparatus to produce anaomalous video highlights

    公开(公告)号:US11983927B1

    公开(公告)日:2024-05-14

    申请号:US18182922

    申请日:2023-03-13

    Applicant: Verkada Inc.

    CPC classification number: G06V20/47 G06V10/771

    Abstract: A method includes receiving, at a processor and from a requestor compute device, a request including a representation of at least one video camera from a set of video cameras. In response to receiving the request, a set of at least one video file is generated by retrieving a set of video clips associated with the at least one video camera and the time range. For each of the at least one video camera, a subset of video clips is selected from the set of video clips for that video camera based on a comparison of anomaly scores for that video camera, and concatenating the subsets of video clips to generate the set of at least one video file. The method also includes sending a signal to cause display of at least one video file from the set of at least one video file via the requestor compute device.

    Methods and apparatus for targeted analysis of video images and detection of persistent changes in a camera view

    公开(公告)号:US12039781B2

    公开(公告)日:2024-07-16

    申请号:US18052461

    申请日:2022-11-03

    Applicant: Verkada Inc.

    CPC classification number: G06V20/52 G06V10/25 G06V10/761

    Abstract: A method for monitoring protected regions of a camera view includes receiving, at a processor of a video camera system, a video stream including a series of video frames depicting at least one scene. A background model is identified based on a predefined representation of at least one region of interest associated with the scene. Each of the video frames is compared to the background model, to define an associated binary mask. A persistent change in the at least one region of interest is detected, based on the binary masks, the persistent change having an associated duration that exceeds a predefined threshold. In response to detecting the persistent change, a change notification message including a video file is generated. The method also includes causing display of the change notification message via a user interface and/or causing transmission of the change notification message to a remote compute device.

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