Research Of Highway Information System Based On Three-dimensional Panoramic Technology

In recent years,China's highway construction has developed rapidly,the highway mileage has increased year by year,the density of the road network has increased,and the amount of information about highway and its subsidiary facilities has also increased.The task of highway maintenance management is becoming more and more arduous.The development of highway information management has become one of the necessary tools for road intelligent management.Highway information includes coordinates,topography,alignment,road network,pavement structure,basic bridge information,pavement performance data(deflection,smoothness,rutting,surface damage),and even assets.Based on VS2010,OSG(Open Graphic Scene),Qt,MySQL database and DTIS software(Digital Topography Information System),this paper synthetically utilizes image acquisition technology and three-dimensional panoramic visualization technology,develops a fully functional road panoramic display and road property performance information management system,realizes the roaming and display of three-dimensional panoramic image,and integrates two and three-dimensional.The recognition and management of sex has certain value and significance for the realization of three-dimensional visualization of digital highway.The main research contents are as follows:(1)Comprehensive use of modern camera acquisition technology to collect 360-degree panorama of expressway,and based on VS2010 and Qt platform to realize the linkage of three-dimensional panorama and two-dimensional GIS map,realize the functions of fixed-point browsing,display and roaming of three-dimensional panorama.(2)Based on the color and position feature vectors and pattern recognition algorithm,the automatic recognition and storage of road property attributes such as signs are realized,which provides a technical platform for road property management.(3)Integrating highway information data and information management platform,we can query and display basic data of any site and pavement performance data,and provide a platform for highway information management.