虚实结合虚拟战场场景生成技术研究

摘要

阐述了虚实结合构建虚拟战场场景的基本思想,将虚景和实景相结合,对于需要操纵和改变外观轮廓形状的目标视景采用虚景即基于几何模型的方法建模,对于环境视景采用实景即基于图像(IBR)的方法建模,并对这两种模型进行图像合成,实现的场景既具有很好的真实感,又具有很好的实时性和可操纵性.实现了一个图像和几何模型相结合的虚拟战场视景系统,介绍了系统的结构、目标视景三维模型生成、环境视景的生成及虚拟场景图像生成与显示等关键技术.%Clarifying the basic idea of modeling based on geometry and image in virtual environment, In order to represent real world precisely, the hybrid approach using geometric modeling and image-based rendering is promising. Taking the advantages of geometric modeling and image-based rendering, a virtual environment construction and real-time graphics generation system that supported photographs and geometric modeling was developed on microcomputer. The structure, functions, typical examples and some key technical details of the system were proposed.