【作者】 童伟；

【导师】 张建奇；

【作者基本信息】 西安电子科技大学 ， 物理电子学， 2011， 硕士

【摘要】 背景的逼真度直接影响着光电观瞄系统性能考核的可靠性,因此为光电观瞄系统建立一个具有逼真背景的虚拟仿真场景就非常重要。本文从视景仿真成像原理出发,利用视景仿真软件Creator和Vega建立了一个基于实拍背景的视景仿真系统。首先,本文参照视景仿真生成原理阐述了基于实拍背景图像的视景仿真系统的基本框架;其次,讨论利用实拍二维背景图像在仿真系统中再现真实三维场景的过程;然后,从光电成像原理及人类视觉特性出发介绍了三维目标模型在仿真中成像尺寸、运动路径及局部雾化控制的解决方法;最后,利用MFC平台结合Vega仿真软件建立了一个基于二维实拍背景图像的虚拟场景仿真系统,将其集成到半实物仿真平台上并进行调试,实验效果良好。更多还原

【Abstract】 The fidelity of background has a direct impact on the reliability of the performance evaluation of electro-optical sighting system, so establishing a virtual simulation scene with realistic background for electro-optical sighting system is very important.This paper using visual simulation software Creator and Vega Creates a scene simulation system based on real background from the imaging principle of scene simulation. Firstly, the basic framework of the scene simulation system based on real background image is described with reference to the principle of scene simulation. Secondly, the process of reproducing the real three-dimensional scene using two-dimensional background image is discussed. Then, the solution of controlling image size, motion paths and local spray in the simulation of the three-dimension object model is described, which is from the principle of electro-optical imaging and the characteristics of human vision. Finally, a virtual scene simulation system based on two-dimensional background image is built using MFC platform with simulation software Vega, which is integrated into the semi-physical simulation platform and debugged, and the experiment results well.更多还原