PROBLEM TO BE SOLVED: To improve extraction accuracy upon extraction of an area corresponding to a traffic lane boundary line from a vehicle outside image.SOLUTION: A traffic lane boundary line extraction device 1 comprises: a vehicle outside image acquisition unit 2 that acquires vehicle outside image data that is taken by a running vehicle; a white line candidate area detection unit 3 that detects a candidate area of a white line (traffic lane boundary line) from a road surface part of the vehicle outside image data; a road surface area setting unit 4 that sets a road surface corresponding to the candidate area at the road surface part of the vehicle outside image data for each candidate area; a luminance calculation unit 6 that calculates representative luminance of the candidate area and representative luminance of the road surface area; and a white line candidate area evaluation unit 7 that evaluates the candidate area to be suitable as the white line (traffic lane boundary line) when a difference between the representative luminance of the candidate area and the representative luminance of the road surface area is greater than a predetermined threshold.

    【課題】車外画像から車線境界線に該当する領域を抽出する際の抽出精度を向上させる。【解決手段】走行する車両で撮像した車外画像データを取得する車外画像取得部2と、車外画像データの路面部分から白線(車線境界線)の候補領域を検出する白線候補領域検出部3と、候補領域ごとに、候補領域と対応する路面領域を車外画像データの路面部分に設定する路面領域設定部4と、候補領域の代表輝度及び路面領域の代表輝度を算出する輝度算出部6と、候補領域の代表輝度と路面領域の代表輝度との差が予め定めた閾値よりも大きい場合に、候補領域が白線(車線境界線)として相応しいと評価する白線候補領域評価部7と、を備える車線境界線抽出装置1。【選択図】図1


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    Title :

    TRAFFIC LANE BOUNDARY LINE EXTRACTION DEVICE, TRAFFIC LINE BOUNDARY LINE EXTRACTION METHOD AND PROGRAM


    Additional title:

    車線境界線抽出装置、車線境界線抽出方法、及びプログラム


    Contributors:

    Publication date :

    2016-01-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G06T Bilddatenverarbeitung oder Bilddatenerzeugung allgemein , IMAGE DATA PROCESSING OR GENERATION, IN GENERAL / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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