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.

Inventor： Mayank Gupta ,  Suraj Arun Vathsa ,  Song Cao ,  Yi Xu ,  Yuanyuan Chen ,  Yunchao Gong

IPC: G06V20/62 ,  G06V10/774 ,  G06V20/54 ,  G06V30/148

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.

公开(公告)号：US11948373B2

公开(公告)日：2024-04-02

申请号：US18064883

申请日：2022-12-12

Applicant: Verkada Inc.

Inventor： Yi Xu ,  Yunchao Gong ,  Suraj Arun Vathsa ,  Mayank Gupta ,  Naresh Nagabushan

IPC: G06V20/62 ,  G06V10/774 ,  G06V20/54 ,  G06V30/148

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

Abstract: Automatic license plate recognition occurs when a light sensor that continually captures video detects motion as a vehicle is driven through a gate. The light sensor detects the vehicle and license plate in the video stream captured by the light sensor. An algorithm associated with the video stream of the light sensor is trained to detect license plates. The light sensor starts executing the recognition algorithm when it detects motion. Recognition of characters in the license plate is based upon an aggregation of several captured video frames in which a license plate is detected.

公开(公告)号：US11557133B1

公开(公告)日：2023-01-17

申请号：US17871786

申请日：2022-07-22

Applicant: Verkada Inc.

Inventor： Yi Xu ,  Yunchao Gong ,  Suraj Arun Vathsa ,  Mayank Gupta ,  Naresh Nagabushan

IPC: G06V20/62 ,  G06V10/774 ,  G06V20/54 ,  G06V30/148

Abstract: Automatic license plate recognition occurs when a light sensor that continually captures video detects motion as a vehicle is driven through a gate. The light sensor detects the vehicle and license plate in the video stream captured by the light sensor. An algorithm associated with the video stream of the light sensor is trained to detect license plates. The light sensor starts executing the recognition algorithm when it detects motion. Recognition of characters in the license plate is based upon an aggregation of several captured video frames in which a license plate is detected.