基于Vega的实时红外视景生成技术研究

【作者】 任亮；

【导师】 陈钱；

【作者基本信息】 南京理工大学 ， 光学工程， 2009， 硕士

【摘要】 利用计算机的强大建模功能模拟生成红外场景,已经成为红外视景仿真领域中的重要研究课题之一。视景仿真技术结合了当今科学技术中多种现代化尖端手段,极大地拓展了人类的视野和能力,在科学技术领域起到了极其重要的作用。动态红外图像的计算机生成技术既可以降低武器系统的研制成本、缩短研制周期,又能提高整个系统的效费,使其具有重要的理论意义和广泛的应用前景。本文主要研究红外仿真图像的计算机生成方法,使用Multigen Creator/Vega工具进行了目标的建模和红外仿真,结合MFC的方式进行视景驱动的二次开发,完成了低空红外预警仿真系统的建立。●本文首先介绍了国内外红外仿真发展的现状,分析了红外仿真的特点,根据课题实际,给出了论文要解决的关键问题;●其次研究了目标红外辐射和背景辐射的特点与模型,分析了红外辐射在大气中的传播性质,给出工程计算方法,分析了红外探测器的效应的模型,阐述了动态生成红外图像的设计思路和实现方法;●然后利用Creator建模软件,综合三维建模技术构造了符合红外仿真的需求的飞机三维模型,使用实例技术减小了系统资源消耗;●结合红外仿真理论在Vega视景仿真软件下,按照红外图像产生的物理过程,使用TMM工具仿真了物体的自发辐射效果,研究了MAT工具生成了大气环境的模型的方法,使用Sensor Vision和Sensor Works模块仿真了红外探测器的输出效果。同时研究了路径模块,建立了飞行器的运动路径;使用粒子系统模块,完成了飞机的尾焰效果的模拟;●针对仿真平台的实际,完成基于MFC的Vega红外仿真系统,详细阐述了MFC下二次开发的技术重点,并给出了实现方法;同时使用屏幕捕获技术和Zlib压缩算法对图像进行捕获,使用Socket实现了客户机和服务器间的数据传输,在局域网中实现了红外仿真图像的实时传输和交互控制。●本文的研究在实时红外仿真工作中有着重要的现实意义,生成的红外图像有很好的真实性,在局域网中可以基本达到实时传输的需求,实验效果良好。本文的研究方法和采用的关键技术,对今后的开展红外仿真实验验证研究具有参考价值。更多还原

【Abstract】 The simulation of infrared scene by computer’s modeling capability is one of the important researches in the field of infrared (IR) simulation technique. Being involved with so many modern high-tech approaches , the technique of scene simulation has greatly widened the visual field of human beings and promoted our ability. It plays an important role in scientific research.The dynamic IR scene generation technique can reduce the cost of developing a new weapon system. All of these lead to its great theoretical significance and wide application perspective.This thesis is focus on how to use computer to generate dynamic IR images. A method of the IR sence simulatoin based on Multigen Creator and Vega is deseribed, which include the creating of three-dimensional(3D) model and IR modeling.Firstly, Development situation of IR scene simulation is introduced. The method is proposeda ccording to the function module of the system.Sceondly, researching infrared radiation characteristic of target and backgrouds, the attenuation characteristic of inrfaerd radiation through is analyzed and the atmospheric permeance and infrared receiver effects of inrfared radiation is given. The design ideas and implementation method to generate dynamic IR scene with computer are addressed.Thirdly, the 3D models of flight are designed on the basis of the study of modeling techniques by Creator. The instance skill is used to reduction the system resources.Fourthly, as the process of IR image recvied by detector, TMM is used to give texture materials attribute. The method to build atmospheric permeance by MAT is researched. Senso Vision and Sensor Works is introduced through this thesis.Finally, a MFC-based Vega exploitation is complied, the emphasis is analysised; Screen capture and Zlib method is used to capture IR images, the real-time transmit and interaction control have good efficiency.The IR scene images are ture to nature, and the transmission rate of Pordueing IR images is greatly increased. The research methods and key technology in this paper are valuable for the future research on dynamic simulation of target’s IR images.更多还原