PROBLEM TO BE SOLVED: To improve accuracy in determination whether a two-wheel vehicle whose image has been captured in a frame image is a vehicle type that is not permitted to run on an arterial high standard highway.SOLUTION: A frame image in which an image of the rear part of a two-wheel vehicle is captured by a visible-light camera 2 is input to a visible-light image input part 12. A visible-light image processing part 14 processes the frame image input to the visible-light image input part 12, and detects a character relating to a registration symbol shown on a number plate. In addition, using at least the position where characters relating to the registration symbol shown on the number plate or the size ratio between the characters relating to the registration symbol, the visible-light image processing part 14 determines from the detection result whether the two-wheel vehicle whose image has been captured in the frame image input by the visible-light image input part 12 is a vehicle type that is not permitted to run on an arterial high standard highway or not.SELECTED DRAWING: Figure 2

    【課題】フレーム画像に撮像されている二輪車が、高規格幹線道路の走行が許可されていない車種であるかどうかの判定精度を向上させる。【解決手段】可視光画像入力部12には、可視光カメラ2によって二輪車の後部を撮像したフレーム画像が入力される。可視光画像処理部14は、可視光画像入力部12に入力されたフレーム画像を処理し、ナンバープレート上に表記されている登録記号にかかる文字を検出する。また、可視光画像処理部14は、文字の検出結果から、ナンバープレート上に表記されている登録記号にかかる文字の表記位置、または登録記号にかかる文字間の大きさの比率の少なくとも一方を用いて、可視光画像入力部12に入力されたフレーム画像に撮像されていた二輪車が、高規格幹線道路の走行が許可されていない車種であるかどうかを判定する。【選択図】図2


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    Title :

    VEHICLE TYPE DETERMINATION DEVICE, VEHICLE TYPE DETERMINATION METHOD, VEHICLE TYPE DETERMINATION PROGRAM


    Additional title:

    車種判別装置、車種判別方法、および車種判別プログラム


    Contributors:

    Publication date :

    2017-03-16


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    G06K Erkennen von Daten , RECOGNITION OF DATA / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS



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