PROBLEM TO BE SOLVED: To properly determine a change of a color value of a light emission source in a preceding vehicle by simple constitution and processing.SOLUTION: A vehicle external environment recognition device 120 comprises: a time transition derivation part 170 which counts, at each color condition, a pigment number satisfying a plurality of the color conditions based on a plurality of preset color thresholds in a vehicle region of a preceding vehicle, converts the pigment number into an area on the basis of a relative distance of the preceding vehicle, and drives the time transition of the area at each color condition; a time transition extraction part 172 which extracts the time transition of the color condition which is in a correlation with a change of an absolute acceleration speed of the preceding vehicle from the time transition which is derived at each color condition; and a color change determination part 174 which determines a state that a color value of a light emission source at the preceding vehicle is high, and a state that the color value is low on the basis of the extracted time transition.

    【課題】簡易な構成と処理で先行車両における発光源のカラー値の変化を適切に判定する。【解決手段】車外環境認識装置120は、先行車両の車両領域において、予め定められた複数のカラー閾値に基づく複数のカラー条件を満たした画素数をカラー条件毎に計数し、画素数を先行車両の相対距離に基づいて面積に変換し、カラー条件毎に面積の時間推移を導出する時間推移導出部170と、カラー条件毎に導出された時間推移から、先行車両の絶対加速度の変化と相関のあるカラー条件の時間推移を抽出する時間推移抽出部172と、抽出された時間推移に基づいて、先行車両における発光源のカラー値が高い状態とカラー値が低い状態とを判定するカラー変化判定部174と、を備える。【選択図】図3


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    Title :

    VEHICLE EXTERNAL ENVIRONMENT RECOGNITION DEVICE


    Additional title:

    車外環境認識装置


    Contributors:
    ITO SHU (author)

    Publication date :

    2015-10-22


    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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