Real Scene Based Digital City System with Cross Media Technique

This paper presents a real scene based digital city system by the combination of virtual reality,GIS and cross media techniques.This system uses a multiple-camera panoramic imaging approach to provide a tour of a scene which is highly true and easily captured.GIS data is acquired in concert with the panoramic video,and used to describe the spatial location of the camera at any given moment.Other data such as text,image and audio are also used to model the scene at the same time. All types of those data are organized and managed through a cross-media model therefore the semantic relations among them are fully mined.Our system gives the user an interactively visual representation to the real world,yet is far more practical than a complete 3D rendering solution.