Title: Density Map Based Trajectory Visualization for Low Speed Objects
Abstract: Trajectories of moving vehicles contain data concerning traffic environments, vehicles, and vehicle users in real-time. In order to support effective trajectory analysis, some visualization methods for vehicle trajectory were proposed. Due to the technological limitation and high cost of the satellite tracking system, most of the trajectory visualization methods were focused on the large scale. In this study, we propose a small scale trajectory visualization method. The proposed method is based on the density map and highlights the areas where the trajectories with different kinematic properties are intersecting each other. Our visualization method 1) divides trajectories into several groups according to the kinematic properties, 2) generates the density map for each groups, 3) generates the intersection map which visualizes the area that the groups are intersecting, and 4) combines the density map with intersection map. In order to evaluate the method, the bicycle GPS trajectories collected from segregated bicycle track were visualized. The experimental results showed that our visualization method was able to provide some visual insights which is hard to be noted from the large scale visualization methods.
Publication Year: 2013
Publication Date: 2013-12-11
Language: en
Type: article
Indexed In: ['crossref']
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