Research On Vehicle 3D Display Technology For Highway Operation

Compared with the expansion speed of urban scale,the development of urban road construction in China is relatively slow,and the contradiction between urban road traffic and population and environment is increasing.3D simulation of traffic conditions is an effective way for road planning and traffic monitor,and is of great significance for road traffic safety and urban road construction.In this paper,based on the static image of the vehicle,Three.js supporting WebGL 3D display function is used as a tool to study the method of directly loading and displaying 3D vehicle dynamic video on the browser,to realize the road vehicle monitoring and real-time video for real and virtual combination.Monitoring lays the foundation.The main research contents include:1.Model identification and extraction of 3D models.The static image information of the vehicle automatically matches the corresponding model in the 3D model library,and the image-based 3D model is automatically called.Select the OPENCV software to complete the vehicle identification work and identify the contour and color of the vehicle in the image.Shape contour scanning is used to identify the contour and increase the auxiliary ratio of aspect ratio and area ratio to improve the matching accuracy;the HSV model is used to identify the vehicle color.2.Construction of 3D simulation platform and research on smooth display technology.The 3D simulation platform consists of a camera,lighting setup and scene rendering.On this basis,the loading of the 3D vehicle model is realized by the OBJ format and the MTL format of Three.js technology.Furthermore,techniques such as load smoothness and vehicle operation simulation effect display are studied to test the ability of optimizing data processing and the effect of generating animation.3.Example application study of vehicle operation scenarios.The simulation application research on the running scenes of 35 kinds of vehicles in the micro and macro categories is carried out.The micro scene includes following the car,changing lanes,toll stations and collision detection;the macro scene refers to the diversion and confluence of the vehicles at the turntable intersection.