Three-Dimensional Panorama is one method of the most important Scene representation about virtual reality and computer vision, the most simple panorama generation method directly uses the panoramic camera tools to shoot panoramic, but the cost is higher, so limited the universal use. This paper puts forward a kind of low cost method based on image mosaicing technique, a series of image sequences is processed. The method is used in virtual campus system of NanYang Institute of Technology, realized the virtual campus imaging roaming, greatly reduced the cost.