Accelerometer-assisted frame-accurate synchronization of mobile camera arrays

    公开(公告)号:US12170755B2

    公开(公告)日:2024-12-17

    申请号:US17347694

    申请日:2021-06-15

    Abstract: A method and system for synchronization of image data is provided. A plurality of image-capture devices is controlled to acquire a plurality of video clips of at least one object. Each video clip of the plurality of video clips is acquired by a corresponding image-capture device of the plurality of image-capture devices in a moving state. From the plurality of image-capture devices, a set of sensor data is acquired. Such data corresponds to the plurality of image-capture devices and is associated with a movement of the plurality of image-capture devices. Thereafter, relative offsets between the set of sensor data are determined by using cross-correlation and matching frames in each of the plurality of video clips is further determined, based on the relative offsets.

    Traffic speed enforcement based on license plate detection

    公开(公告)号:US11282381B2

    公开(公告)日:2022-03-22

    申请号:US16906250

    申请日:2020-06-19

    Abstract: An electronic apparatus and method for traffic speed enforcement based on license plate detection is provided. The electronic apparatus controls an image-capture device on a first vehicle to capture a sequence of images of a second vehicle and detects a license plate of the second vehicle in the captured sequence of images. The electronic apparatus extracts a set of license plate images from a set of images in the sequence of images and determines a first change in a size of a first license plate image with respect to that of a second license plate image. The electronic apparatus further determines a speed of the first vehicle and a traffic speed violation by the second vehicle based on the determined first change and the determined speed of the first vehicle. The electronic apparatus further controls a media device to output a notification indicative of the determined traffic speed violation.

    Recognition of license plate numbers from Bayer-domain image data

    公开(公告)号:US11417125B2

    公开(公告)日:2022-08-16

    申请号:US17107058

    申请日:2020-11-30

    Abstract: A system and method for recognition of license plate numbers from Bayer-domain image data is provided. The system acquires Bayer-domain image data of a scene comprising a vehicle and inputs such image data to a Deep Neural Network (DNN) model trained for license plate detection (LPD) and license plate recognition (LPR). The system extracts an LPD result as an output of the DNN model. Based on the LPD result, the system extracts, from the input Bayer-domain image data, a region-of-interest (RoI) comprising a license plate image associated with the vehicle. The system inputs the extracted RoI to the DNN model and extracts, as an output of the DNN model, an LPR result which indicates a confidence of the DNN model in recognition of a license plate number of the vehicle from the input RoI. The system determines the license plate number based on the extracted LPR result.

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