To provide a road type determining device capable of appropriately determining whether a road on which a vehicle travels is a motorway.SOLUTION: A road type determining device for determining whether a road on which a vehicle travels is a motorway, comprises: a road sign recognition unit that recognizes a road sign in front of a vehicle based on an image captured by a front camera of the vehicle; a distance detection unit that detects a distance from the vehicle to the road sign based on the captured image or a detection result of a radar sensor of the vehicle when the road sign is recognized by the road sign recognition unit; a character size determination unit that determines whether a character size of the road sign is equal to or larger than a size of the motorway, based on the captured image and the distance from the vehicle to the road sign; and a road type determination unit that determines that the road on which the vehicle is traveling is the motorway when the character size determination unit determines that the character size of the road sign is equal to or larger than the size of the motorway.SELECTED DRAWING: Figure 2
【課題】車両の走行道路が自動車専用道路であることを適切に判定することができる道路種別判定装置を提供する。【解決手段】車両の走行道路が自動車専用道路であるか否かを判定する道路種別判定装置であって、車両の前方カメラの撮像画像に基づいて、車両の前方の道路標識を認識する道路標識認識部と、道路標識認識部により道路標識が認識された場合に、撮像画像又は車両のレーダセンサの検出結果に基づいて、車両から道路標識までの距離を検出する距離検出部と、撮像画像と車両から道路標識までの距離とに基づいて、道路標識の文字サイズが自専道サイズ以上であるか否かを判定する文字サイズ判定部と、文字サイズ判定部により道路標識の文字サイズが自専道サイズ以上であると判定された場合に、車両の走行道路が自動車専用道路であると判定する道路種別判定部と、を備える。【選択図】図2
ROAD TYPE DETERMINING DEVICE
道路種別判定装置
2023-08-16
Patent
Electronic Resource
Japanese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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