基于全景图像的空地一体虚拟地理环境构建方法

A Method of Air-ground Virtual Geographic Environment Construction Based on Panorama

与基于空间几何数据生成的虚拟视景不同,全景图能提供与现实世界一致的全视野体验,提高虚拟地理环境的视觉逼真度。本文设计了空地一体的虚拟地理环境构建方案并提出空中全景获取技术,研究全景图球面建模与全景信息编辑技术,使用LOD技术结合遥感影像和全景图数据构建虚拟地理环境,提出全景图像多尺度显示模型以及同全球虚拟场景融合的漫游与交互方法。通过在教学、科研中应用以及登封地区实验,验证了方法的有效性。

Compared to the virtual view based on spatial geometry data,panorama can provide a full-field visual experience consistent with the real world,and enhance the visual fidelity of virtual geographic environment.Firstly,an air-ground virtual geographic environment construction scheme is designed and aerial panoramic image acquisition technology is proposed.Then,the spherical panorama modeling and panorama information editing technology are studied.Thirdly,virtual geographic environment is constructed with LOD based on remote sensing images and panoramic images data.Moreover,a multi-scale display model of panoramic images,and a roaming and interacting method integrated with global virtual scenes are proposed.Finally,the experiment was carried out in Dengfeng,and the method is applied in teaching and research in order to verify its feasibility.