The distance to a target vehicle is calculated comparatively accurately. To achieve this, a target vehicle traveling ahead of one's own vehicle is imaged by a camera and it is determined to what vehicle group the image of the target vehicle belongs. A first distance from one's own vehicle to the target vehicle is calculated by a circuit using the representative vehicle width of the vehicle group decided. A vanishing point is detected from the captured image by a vanishing point detection circuit and a second distance from one's own vehicle to the target vehicle is calculated utilizing the vanishing point. The distance to the target vehicle is decided from the first and second distances by a distance decision circuit, wherein the shorter the distance to the vanishing point, the more the value of a weighting coefficient of the second distance is reduced.


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    Title :

    Vehicle-to-vehicle distance calculation apparatus and method


    Contributors:

    Publication date :

    2015-09-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G06K Erkennen von Daten , RECOGNITION OF DATA / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein / G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL




    VEHICLE CONTROLLER, DISTANCE CALCULATION DEVICE AND DISTANCE CALCULATION METHOD

    MURAKAMI TAKUYA | European Patent Office | 2016

    Free access



    VEHICLE CONTROL DEVICE, DISTANCE CALCULATION DEVICE, AND DISTANCE CALCULATION METHOD

    MURAKAMI TAKUYA | European Patent Office | 2016

    Free access