Design And Development Of Road Traffic Accident Three-Dimensional Reconstruction System

Automobile accidents are one of today's global disasters. The statistics from all over the world every year due to road traffic accidents, the number of deaths have been up to as many as 400,000 people, injured more than 10 million people, the property loss of more than 50 billion U.S. dollars, casualties at war have been even more than the number of casualties from car accidents. With the development of automobile industry and traffic transportation, the traffic accidents happen every day in the world and become a serious society problem. Simulation of road traffic accidents is based on the animated expression, real-time performance of real traffic accidents throughout the process. The purpose of using three-dimensional computer animation to simulate the traffic accidents is for more intuitive real analysis and reconstruction of vehicle traffic accident.The basic theory and the concrete realization of the three-dimensional reconstruction system of road traffic accidents are researched in the thesis. Among the many types of traffic accidents, the main studies of the collision of two vehicles of the simulation of traffic accidents are studied. In accordance of simple physics theory, the method of calculating the speed of the vehicles that before and after collision is given from one-dimensional and two-dimensional collision, and the collision detection model and algorithm of the accident of two cars collision are discussed. Based on the virtual reality theory, vehicle models of the traffic accidents are built by the three-dimensional modeling software. The method of reading,displaying,controlling three-dimensional model through OpenGL procedure and constructing the traffic accident scene based on object model is investigated. According to the theory of computer animation and the technology in OpenGL animation, the three-dimensional simulation animation is realized. Finally, expound the overall design of the system software and development process overall and introduce the application of the software in an instance.