Building a world-wide virtual environment using view-dependent spatial data

摘要

In this paper, we propose a new approach to display different type and scale of spatial data set such as remote sensing data, aerial photographs, city models and etc. Until now, we built different type and scale of virtual environments from each data sets separately. In each virtual environment, user can interact freely: he/she can fly in the space, walkthrough in cities or examine objects. Then, we integrated these constructed environments into a large virtual environment. And also, we implemented the prototype system in CABIN and demonstrated efficiency of this method to build a world-wide virtual environment.