基于OpenGL红外视景仿真研究

Research of IR Scene Simulation Based on OpenGL

在建立目标三维温度场和红外辐射场的基础上,考虑相应的大气传输修正,提出了基于OpenGL的目标和背景模拟方法;简单介绍了基于OpenGL工具创建三维图形的步骤,并依据创建步骤对目标、背景模拟生成进行具体分析;借助于专业的CAD软件对目标进行几何建模,并将计算的辐射亮度量化为灰度值进行渲染处理;依据数据库技术,选用合适实拍背景图像处理后纹理映射生成背景;并利用OpenGL的双缓存技术实现红外视景的动态生成.

Based on the temperature and radiation field of the target, the simulation method of target and background is proposed, with atmosphere transfer effect taken into account. The process to draw 3D image with OpenGL is introduced briefly, and simulation of the target and the background is specified. In target simulating, the geometry model is constructed with professional CAD software, and target's temperature and radiance are computed. In background simulating, the background images are selected from the database to generate the required background.Dynamic IR scene is generated with the double buffered technology.