三维地形的实时绘制与漫游  

The Real-time Rendering and Walkthrou gh of 3D Terrain

作　　者：吕秋灵[1] 张俊霞[1] 

机构地区：[1]河海大学交通与海洋工程学院,江苏南京210098

出　　处：《东华大学学报（自然科学版）》2005年第4期151-153,共3页Journal of Donghua University(Natural Science)

摘　　要：三维地形的实时绘制与漫游有着广阔的应用前景,它能够交互式地从各个不同的角度更形象更直观地展示三维地形,具有很大的实用价值。这里介绍了三维地形的实时绘制与漫游在PC机上的研究与实现,本系统采用了基于层面叠加的场景绘制技术,实现了立体视觉,同时还提供了方便的交互工具,使整个系统的实时性和画面的真实感程度都达到了较高的水平。The real-time rendering and walkthrough of three dimensional terrain has wide application area, and it can be observed in different view interactively by walkman. This paper presents the study and implementation of a real-time walkthrough system with personal computer. It adopts a real-time rendering algorithm based on overlay techniques. The system implemented the stereoscopic display and a convenient user interface. The system can naturally reach a balance between the quality of the image and the speed of the rendering.

关 键 词：三维地形 虚拟现实 实时漫游 层面叠加 场景绘制技术 

分 类 号：P231.5[天文地球—摄影测量与遥感]