| 摘要: |
| 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. |
| 关键词: 基于图象的虚拟现实，表示，几何图象混合绘制，全景图，纹理映射. |
| DOI： |
| 分类号: |
| 基金项目:本文研究得到国家自然科学基金资助. |
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| A New Representation for Indoor Virtual Environment |
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LI Hong-ju,WU En-hua
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| Abstract: |
| 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. |
| Key words: Image-based virtual reality, representation, hybrid geometry-and image-based rendering, panoramic image, texture mapping. |
