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This paper presents a fast vehicle recognition and vehicle retrieval system based on “bag of words”. In this system, the input is an image of vehicle and the vehicle will be identified automatically, it can also retrieve images which are similar to the input image. 3742 vehicle images which include 28 types of vehicles are collected as the image database. Features of these images are extracted and...
In this paper, we present a new, shader based polygon stitching algorithm that takes full advantage of the geometry shader. Based on this algorithm, we propose a novel method to simulate deformable terrain, particularly the simulation of tire tracks left on the soft terrain such as snow, mud, or sand. Existing methods for simulating deformable terrain include texture decals, bump mapping, displacement...
Considering both electrical and mechanical parameters of metro systems, a hybrid modeling method is proposed to develop a virtual metro system (VMS), which consists of traction power supply module, route module, resistance module and vehicle module. The characteristic parameters of the proposed modules are verified by real metro systems. Compared with conventional electric traction control strategies...
Urban eco-transportation system is the development direction of urban transportation system; urban traffic mode structure is an all-important factor that affects the realization of it. Despite a voluminous empirical research of traffic mode structure, most of them have failed to adequately consider the ecology problem. On the basis of satisfying all requirements of eco-transportation system, and according...
Rollover is a one of the major accidents on transportation vehicles. Based on the early-warning monitoring on the rollover angle and the rollover angular velocity in vehicle operation process, this paper established a rollover vehicle model of stable steering, and researched the influence of vehicle rollover angle and rollover angular velocity threshold caused by lateral acceleration in the steady-state...
In order to improve the practicality and accuracy of simulation on vehicle traction performance, the simulation models of tire on vehicle traction performance are built by using three-dimensional finite element analysis, and on this basis the traction performance characteristics on entire vehicle are discussed. Aiming at a four-wheel-drive vehicle, the mathematical models about the accelerated process...
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