The embodiment of the invention provides a vehicle distance detection method and device and a vehicle distance reminding method and device. The vehicle distance detection method comprises the steps ofobtaining the actual size of a license plate; acquiring depth-of-field data of a license plate of a front vehicle through a depth-of-field camera of the vehicle; obtaining the distance between the depth-of-field camera of the vehicle and the license plate of the front vehicle according to the actual size of the license plate and the depth-of-field data of the license plate of the front vehicle; and obtaining the distance between the vehicle and the front vehicle according to the distance between the depth-of-field camera of the vehicle and the license plate of the front vehicle. According tothe embodiment of the invention, the vehicle does not need to be modified, the accurate actual vehicle distance can be obtained with the lowest cost and the most convenient mode only by means of the depth-of-field camera of the vehicle, and the method is particularly suitable for common vehicle types or medium-low-configuration vehicle types without a vehicle active safety defense system.
本公开实施例提供一种车距检测方法及装置,和车距提醒方法及装置,其中,所述车距检测方法包括:获取车牌实际尺寸;通过本车景深摄像头获取前方车辆车牌的景深数据;根据所述车牌实际尺寸与所述前方车辆车牌的景深数据,得出本车景深摄像头与前方车辆车牌之间的距离;以及,根据本车景深摄像头与前方车辆车牌之间的距离,得出本车与前车的间距。本公开实施例无需对车辆做任何改造,只需借助本车景深摄像头就能以最低的成本、最便捷的方式获得较为准确的实际车距,特别适用于没有配备车辆主动安全防御系统的普通车型或中低配车型。
Vehicle distance detection method and device and vehicle distance reminding method and device
车距检测方法及装置,和车距提醒方法及装置
2020-10-09
Patent
Elektronische Ressource
Chinesisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein |
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