一个基于全景图的虚拟环境漫游系统 |
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引用本文: | 漆驰,郑国勤,孙家广. 一个基于全景图的虚拟环境漫游系统[J]. 计算机工程与应用, 2001, 37(15): 138-141 |
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作者姓名: | 漆驰 郑国勤 孙家广 |
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作者单位: | 清华大学计算机科学与技术系, |
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基金项目: | 国家科委863项目基金资助 |
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摘 要: | 虚拟现实的实现有两种方法。传统上,使用三维图形学方法进行建模和绘制,这种方法需要繁琐的建模工作和昂贵的专用绘图硬件,而且用三维模型很难真实表现自然景观。基于图像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上述缺点,近年来得到了日益广泛的应用。文章讨论了一个基于图像的虚拟环境漫游系统的实现,分析了此类系统的模型,介绍了系统实现中摄像机定标、图像拼接、实时图像变换等关键技术。
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关 键 词: | 虚拟现实 全景图 摄像机定标 图像对齐 图像拼接 实时显示 |
文章编号: | 1002-8331-(2001)15-0138-04 |
修稿时间: | 2001-01-01 |
An Image-Based Virtual Environment Navigation System |
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Abstract: | : There are two approaches to the implementation of virtual reality system.Traditionally,virtual reality systems establish the 3D geometry model of virtual environment and render it in real-time.This approach usually requires laborious modeling procedure and expensive rendering hardware,and even worse,it is difficult to establish the 3D geometry model of natural scenes.As a new technology to resolve all these problems,Image-based rendering technology has been widely used in recent years.In this paper,the implementation of an image-based virtual environment navigation system is discussed,the architecture and model of this kind of systems are analyzed,and the key technologies,such as camera calibrating,image mosaic,real-time warping,are presented. |
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Keywords: | : virtual reality,panoramic image,camera calibrating,image registration,image mosaic,real-time display |
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