一种用于室内虚拟环境的新表示

A New Representation for Indoor Virtual Environment

针对室内环境的虚拟问题，提出一种用于描述封闭环境的新表示．该表示由定义在经纬度平面上的光强－距离函数组成，可以支持３个自由度的全景浏览、连续变焦以及任意路线的移动．基于这种表示，给出一个使用少数照片创建室内环境的方法，它结合了基于几何和基于图象的绘制技术，算法快速稳定，对拍摄条件和硬件设备没有苛刻要求．

In this paper, the authors give a new representation for virtual reality, which is defined as an intensity range function on a latitude longitude plane. It supports three degree freedom viewing(yaw, pitch and roll), continuous zooming and walk through in a virtual enclosed environment. On the basis of the representation, a hybrid approach is addressed for constructing virtual indoor environment, which only requires a sparse set of still photographs and has no strait restriction on taking original photographs. Experiment results show that the approach is robust.