| 摘要: |
| 虚拟现实的一个重要目标是使用计算机生成逼真的视觉世界，使用户可以对虚拟世界的客体进行交互式考察．虚拟现实的实现有两种方法．传统上，用三维图形学的方法实行建模和绘制．此方法需要繁琐的建模和昂贵的专用绘制硬件，而且图形绘制的质量和场景的复杂性受到很大的限制．基于图象的绘制是实现虚拟现实系统的一种新方法．它克服了三维图形方法的缺点．本文在总结已有技术的基础上，提出一个实现基于图象绘制的虚拟现实系统模型，并据此模型实现一个实验系统及相应的图象工具． |
| 关键词: 虚拟现实 图象绘制 全景图 图象拼接 |
| DOI： |
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| 基金项目:本文研究得到国家自然科学基金、国家863高科技项目基金和国家“八五”攻关项目基金资助. |
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| IMAGE-BASED RENDERING: A TECHNOLOGY FOR VIRTUAL REALITY SYSTEM |
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CAI Yong,LIU Xuehui,WU Enhua
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| Abstract: |
| The most important goal of the virtual reality is to create a virtual world by computers to allow users control the virtual objects interactively．Traditionally，the virtual reality systems use 3D computer graphics to model and render a virtual environment in real time．However，this approach usually requires laborious modeling and expensive spe-cial purpose rendering hardware．The rendering quality and scene complexity are often re-stricted due to the real-time constraint．Image-based rendering is a new approach in com-posing a virtual environment in which a set of panoramic images are used to compose the virtual environment and walk in the space is accomplished by“hopping”to different panoramic points．This paper provides a model for creating an image-based virtual reality
system．By using this model，an experience system referred to as QUICK SHOW is ac-complished with some additional image tools implemented． |
| Key words: Virtual reality image-based rendering panoramic image stitching |
