To make it difficult to erroneously detect the number of axles of tires that touch the ground.SOLUTION: An axle number detection device includes: an image acquisition unit that acquires a side image of a vehicle; an area identifying unit that identifies a front area and a rear area of the vehicle in the side image; and a lift-up axle determination unit that generates a reference line on the side image and determines that a tire away by a predetermined value or more from the reference line is a lift-up axle based on positions on the side image of tires belonging to the front area and a position on the side image of a tire drawn at the lowest position among tires belonging to the rear area.SELECTED DRAWING: Figure 1
【課題】接地するタイヤの車軸数を誤って検出しにくくする。【解決手段】車軸数検出装置は、車両の側面画像を取得する画像取得部と、前記側面画像における車両の前方領域と後方領域とを特定する領域特定部と、前記前方領域に属するタイヤの前記側面画像上の位置と、前記後方領域に属するタイヤのうち最も低い位置に描画されたタイヤの前記側面画像上の位置と、に基づいて、前記側面画像上に基準線を生成し、当該基準線から所定値以上離れているタイヤをリフトアップ軸と判定するリフトアップ軸判定部と、を備える。【選択図】図1
AXLE NUMBER DETECTION DEVICE, TOLL COLLECTION SYSTEM, AXLE NUMBER DETECTION METHOD, AND PROGRAM
車軸数検出装置、料金収受システム、車軸数検出方法、及びプログラム
2021-08-30
Patent
Electronic Resource
Japanese
AXLE NUMBER DETECTION DEVICE, TOLL COLLECTION SYSTEM, AXLE NUMBER DETECTION METHOD, AND PROGRAM
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