PROBLEM TO BE SOLVED: To estimate a state of a road surface in front of a vehicle on the basis of a vehicle front image obtained by capturing a front of the vehicle.SOLUTION: A road surface estimating apparatus 1 has: a reference image extracting unit 13 for extracting, as a reference image, a region of a lamp part of a preceding vehicle in a vehicle front image obtained by capturing a front of the vehicle; a search region setting unit 14 for setting, as a search region, a region in the vehicle front image which may have reflection of the lamp part by reflection of the lamp part to the road surface due to a wet road surface in front of the vehicle; and an estimating unit 15 for estimating a degree of wetness of the road surface by comparing color information of pixels in the search region with color information of pixels in the reference image.SELECTED DRAWING: Figure 1
【課題】車両前方の路面の状態を、該車両の前方を写した車両前方画像に基づいて推定する。【解決手段】路面状態推定装置1は、車両前方を写した車両前方画像において、前走車両のランプ部の領域を基準画像として抽出する基準画像抽出部13と、車両前方の路面の濡れに起因する前記ランプ部の前記路面への反射により、前記ランプ部の映り込みが生じている可能性のある前記車両前方画像内の領域を探索領域として設定する探索領域設定部14と、前記探索領域内のピクセルの色情報を前記基準画像内のピクセルの色情報と比較することにより前記路面の濡れ度合いを推定する推定部15とを備えている。【選択図】図1
ROAD SURFACE STATE ESTIMATING APPARATUS
路面状態推定装置
2018-09-20
Patent
Electronic Resource
Japanese
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