虚拟河坊街全景漫游系统

利用基于图像的绘制(IBR)技术来建立具有真实感的虚拟环境是当前计算机图形学研究领域中的一项热门课题，也是虚拟现实技术中的关键技术。它以简单的图像合成代替基于三维几何的建模和渲染，加快了画面的显示速度，是建立特定三维场景的一种高效的方法。该文讨论了计算机图形学中的全景拼图技术，及利用此技术进行全景漫游系统的具体实现过程，整个系统分为全景图制作和交互漫游两部分，实现了真实场景的全景展示和交互漫游。

A Virtual Panorama System for the Walkthrough of Hefang Street

Constructing a virtual environment by using the technique of image-based rendering (IBR) has now become a hot topic in the research field of computer graphics, and it is also a key problem in virtual reality (VR). In the IBR technology, a 3-D scene is set up by using image-composing instead of 3-D geometry modeling, so it can speed up scene rendering and is highly efficient in constructing a specific virtual scene. This paper presents panorama mosaic which is a research top of computer graphics and a panorama system for the walkthrough of real environment. By decomposing the system into two parts, panorama creation and interactive walkthrough, finally environment exhibition and walkthrough can be reached by the system.