【作者】 陈云峰；

【导师】 周汉昌； 王高；

【作者基本信息】 中北大学 ， 通信与信息系统， 2008， 硕士

【摘要】 随着虚拟现实技术和现代化建设的不断发展,迫切需要对原有的射击训练系统进行技术更新。设计安全可靠符合实际训练要求的射手虚拟训练系统可降低训练成本,满足多样化射击训练要求,并可实时记录数据,进行分析处理。为实现射手训练系统的交互性,软件部分选择合适的建模和场景驱动软件模拟飞碟运动,硬件部分需跟踪枪支姿态和弹着点。在枪上安装激光器,当射手射击时发出激光束来模拟子弹运动轨迹,得到激光束上的两点便可确定激光束所在直线,用于计算枪支姿态和弹着点。论文首先介绍了虚拟现实技术的软硬件现状,根据射手训练要求提出了系统总体设计方案。然后使用3D Studio MAX和MATLAB虚拟现实工具箱建模生成了虚拟飞行目标,按模型建立步骤介绍了各步操作设置,演示了效果图。接着在枪支定位光学系统设计中介绍了数学模型、成像系统组成和实验方案,采集到了激光透过半透半反膜形成两个光斑的图像,并进行了实验结果分析。最后详细介绍了光路算法、图像处理算法和MATLAB计算实现,处理图像计算得到枪支姿态和弹着点,实验结果符合实际情况。本文提出了使用单CMOS(Charge Coupled Device)相机跟踪枪支三维姿态的方案并完成了实验框架和算法设计,通过实验证明这种光电检测方法可以进行位置跟踪,为实现射手虚拟现实训练系统进行了准备和可行性验证工作。希望本文的研究对从事空间三维测量技术及虚拟现实技术研究的人们有一定的参考价值。更多还原

【Abstract】 Along with unceasing development of virtual reality technology and modernization, we cry for technical renovate to the quondam shooting training system. It can reduce the training cost, satisfies the diversification shooting training request, record the real-time data, and carry on the analysis and processing to design shooter virtual reality training system which is safety and conforms to the practical training request.In order to realize interaction of shooter training system, in software we choose appropriate modeling and scene driver software to simulate flying saucer movement, and the hardware must track the gun’s attitude and strike. Installing a laser on the gun which can emit laser bean to simulate bullet movement trail when shooter fires, we can ascertain the straight-line of the laser bean if we obtain two points of the laser bean,to calculate gun’s posture and strike.The virtual reality technology software and hardware actuality is firstly introduced, and we propose a system design plan according to the shooter training requirement. Afterwards we make modeling and get virtual flying target using 3D Studio MAX and the MATLAB virtual reality toolbox, introducing operation and setting according to the model building step, and demonstrate the effect pictures. Then the mathematical model, the imaging system composition and the experimental scheme is introduced in the gun localization optical system design. We have obtained image which has two laser faculas formed by laser through thin-film, and carried on the experimental result analysis. Finally the algorithm of ray path, the image processing algorithm and the realization of MATLAB computation are introduced in detail, getting gun’s attitude and strike by processing image. The experimental result tallies with the actual situation.We have proposed the scheme of using one CMOS camera to track gun’s three-dimensional attitude and completed the experiment frame and the algorithm design. Through the experiment it has proved that the photoelectric detection method can realizes the position track, which is carrying on the preparation and the feasibility confirmation work to realize the shooter virtual reality training system. I hope there is some reference value in the thesis to the people who is carrying on the research of spatial three-dimensional measuring technique and the virtual reality technology.更多还原