Camera calibration method
    1.
    发明授权

    公开(公告)号:US12125240B2

    公开(公告)日:2024-10-22

    申请号:US17467683

    申请日:2021-09-07

    IPC分类号: G06T7/80 G06T7/73

    摘要: Described is a method of calibrating a camera. The method comprises defining an area observed in a field of view (FOV) of the camera as a region of interest (ROI). The method includes selecting a plurality of physical reference points in said ROI and obtaining for each reference point physical position coordinates. The method also includes obtaining from said camera FOV or camera image data pixel locations for each point of reference and pairing each pixel location with the physical position coordinates of its respective reference point. Then, a relationship is derived from the paired pixel locations and physical position coordinates to enable a selected or identified pixel location in the camera FOV or camera image data to be transformed to physical position coordinates for a corresponding physical location in said ROI.

    INFRASTRUCTURE-SUPPORTED PERCEPTION SYSTEM FOR CONNECTED VEHICLE APPLICATIONS

    公开(公告)号:US20240338793A1

    公开(公告)日:2024-10-10

    申请号:US18297870

    申请日:2023-04-10

    IPC分类号: G06T3/40 G06T7/20

    摘要: An infrastructure-supported perception system for connected vehicle applications includes one or more infrastructure perception sensors that capture perception data having a reduced resolution and a reduced frame rate. The reduced resolution includes a reduced number of pixels for a given frame when compared to a standard resolution and the reduced frame rate captures data at a lower rate when compared to a standard frame rate. The infrastructure-supported perception system includes one or more controllers that are part of a connected vehicle. The controllers of the connected vehicle are in wireless communication with the one or more infrastructure perception sensors and one or more servers, and the one or more servers are in wireless communication with the one or more infrastructure perception sensors. The controllers receive dynamic information regarding one or more detected objects in an environment surrounding the connected vehicle from the one or more servers.

    Vehicle warning system
    8.
    发明授权

    公开(公告)号:US12051330B2

    公开(公告)日:2024-07-30

    申请号:US17988436

    申请日:2022-11-16

    申请人: Yin-Yan Tseng

    发明人: Yin-Yan Tseng

    摘要: A vehicle warning system includes a data processor, an image processor and an estimation unit. The data processor receives a first movement data of a first vehicle to generate a first predicted travel path and receives a second movement data of a second vehicle to generate a second predicted travel path. The image processor collects image(s) from at least one video device located within a predetermined area where the first predicted travel path passes and generates the second movement data. The estimation unit receives the first and second predicted travel paths and estimates whether the first and second travel paths are intersected and whether the first vehicle will collide with the second vehicle owing to path intersection.