Visual Analysis of Trajectory Data

Large volumes of trajectory data are generated in transportation, meteorology, ecology and location based services. Effective understanding and utilization of such data require not only e cient automatic analysis, but also intuitive and vivid visualization. Visual analysis is the combination of analysis and visualization. In this paper, we will introduce the major methodologies and interaction techniques in trajectory visual analysis, followed by its applications. Finally, we summarize the problems and challenges in this research area.