The invention relates to the technical field of vehicle positioning, and provides a parking lot vehicle accurate positioning method and system based on vision, and the method comprises the following steps: installing cameras at fixed positions of measurement nodes, the installation height of the cameras being H, and setting the number of the cameras according to the vehicle arrival direction; the position of a vehicle is measured based on a direct geometric measurement method, a camera installation downward inclination angle alpha is obtained through direct measurement in the camera installation process, and the license plate installation height is fixed; a measured reference point is a license plate center, and calculating a vehicle position angle beta and a vehicle distance D by an image optical model; performing visual data capture by running a neural network, obtaining a frame image, performing visual tracking and positioning, and feeding back a detection position to user navigation information; according to the invention, through a precise positioning method based on vision and in combination with a Bluetooth positioning technology, uncertain factors of the vehicle position are eliminated, a unified and high-quality positioning result is presented to a final user, and the method is used for navigation guidance of the vehicle in a parking lot.
本发明涉及车辆定位技术领域,提供了一种基于视觉的停车场车辆精确定位方法和系统,包括以下步骤:在测量节点处固定位置安装摄像头,摄像头安装高度为H,并根据车辆到达方向设置摄像头数量;基于直接的几何测量方法对车辆位置测量,由摄像头安装过程直接测量得到摄像头安装下倾角α,车牌安装高度固定;测量的基准点为车牌中心,由图像光学模型计算车辆位置角β和车辆距离D;通过运行神经网络进行视觉数据捕获,获取帧图像,进行视觉跟踪定位,将检测位置反馈至用户导航信息;本发明通过基于视觉的精准定位方法,结合蓝牙定位技术,消除车辆位置的不确定因素,呈现给最终用户统一的、高质量的定位结果,用于车辆在停车场的导航导引。
Vision-based parking lot vehicle accurate positioning method and system
一种基于视觉的停车场车辆精确定位方法和系统
2024-01-09
Patent
Elektronische Ressource
Chinesisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G01C Messen von Entfernungen, Höhen, Neigungen oder Richtungen , MEASURING DISTANCES, LEVELS OR BEARINGS / G01S RADIO DIRECTION-FINDING , Funkpeilung / G06V / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze |
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