An improved camera external parameter calibration method of a vehicle panoramic system, comprising: acquiring calibration images of a checkerboard by means of cameras; for each acquired calibration image, obtaining pixel coordinates of corner points in the image; obtaining first coordinates of each corner point in a vehicle coordinate system on the basis of relevant parameters of the panoramic camera; for a group of adjacent corner points among the corner points, determining a first and second deviation according to the first coordinates of each corner point in the group; for each corner point in the adjacent points of the group, calculating the distance difference of the corner point on the basis of the first coordinates obtained by two cameras; and performing optimization calculation on the external parameters on the basis of the first deviation, the second deviation and the distance difference so as to obtain the external parameters of the cameras.


    Access

    Download


    Export, share and cite



    Title :

    CAMERA EXTERNAL PARAMETER CALIBRATION METHOD AND SYSTEM FOR VEHICLE PANORAMIC SYSTEM, AND PANORAMIC SYSTEM


    Contributors:
    LI WENXUE (author)

    Publication date :

    2022-10-06


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G06V




    Panoramic camera structure for vehicle

    XU SHENGFEI / ZHANG RUIMING | European Patent Office | 2023

    Free access

    Panoramic calibration device for vehicle

    LI WANGHUA / LIU YOUGANG | European Patent Office | 2021

    Free access

    Vehicle panoramic image processing method, vehicle panoramic system and vehicle-mounted processing device

    CHEN YANJUN / CHEN JUNXIONG / LI JIANZHONG et al. | European Patent Office | 2024

    Free access

    Panoramic camera shooting unmanned aerial vehicle

    YANG CHAOFENG | European Patent Office | 2020

    Free access