基于雷视融合的交通信息检测技术及其应用

Application of Radar-Video Fusion in Traffic Information Detection

为满足交通信息系统的数字化、智能化应用需求,对比分析3种典型的区域交通信息检测技术。在此基础上,结合道路交通流全息检测的应用需求,对基于雷视融合的交通信息检测技术进行研究。该技术采用微波雷达与视频设备一体化设计,基于微波雷达和视频交通信息采集技术,在专用信号处理板上通过目标(车辆)检测散射点层面的深度信息融合,实现对道路交通全息(坐标、速度、车牌号码、颜色和大小车型等)的采集和检测,以及对结构化数据和视频流的融合与同时输出。该技术已在东海大桥等交通管理系统中得到应用,结果表明其能为交通信息系统提供高度可视化、大区域、全天候的精准交通基础信息,为建立数字孪生交通管理系统奠定数据基础,助力数字孪生城市建设。

Single traffic detection technology cannot meet the new requirements of intelligent traffic information system,meantime,the development of multiplexed detection technology has come to the stages of hardware overlay,detection data overlay,data depth-fusion.This paper analyzes and compares several typical regional traffic information detection technologies,and discusses particularly the radar-video fusion traffic information acquisition technology against the application requirements of road traffic holographic detection.The radar-video fusion traffic information acquisition technology uses microwave radar and video equipment integration design.The traffic information from microwave radar and video is sent to a special signal processing board.It fuses the depth information of the scattering points from target vehicles and achieves the collection and detection of road traffic comprehensive information(coordinates,speed,vehicle license plate number,color and size,etc.).The structured data stream and video stream are integrated and output simultaneously.The radar-video acquisition equipment can provide the system with highly visual,large area,all-weather,accurate traffic basic information,necessary for the digital twin traffic management system.