基于全景图的3维实景制作及其与GIS集成研究

3维实景技术是一种基于图像绘制的虚拟现实技术,使用真实的照片展现场景达到沉浸式虚拟漫游的效果,提供给用户良好的交互性。本文提出了一种利用全景图制作3维实景并将其与GIS集成的方法:首先对拍摄的鱼眼照片进行球面投影,然后配准拼接成球面全景图,利用全景图制作3维场景,实现3维场景的漫游并将3维实景集成于已有的GIS系统。本文以华东师范大学校园3维实景漫游系统及基于Google Maps的3维实景地图开发为例,介绍方法流程。与传统的2维地图相比,3维实景地图更加直观且更具真实性。

The Research of the Production of 3D Real Scene and the GIS Integration Thereof Based on Panorama

3D real scene is a type of virtual reality technique based on image rendering,which can achieve the effect of immersive virtual roaming using real image to show the actual scene and provide the user with good interactivity.This paper puts forward a method of producing 3D real scene and integrating it with GIS using panorama,whose detail procedure include projecting the photos taken by fish-eye lens spherically,registering and splicing the photos into spherical panorama,generating 3D real scene using panorama and implementing roaming in three-dimensional scene and integrating it into existing GIS.Taking 3D real scene roaming system of East China Normal University campus and 3D real scene map development based on Google Maps as an example,this paper introduces the method and workflow of 3D real scene production.Compared with traditional 2D map,3D real scene map is more illustrative and vivid.