基于数字微镜的体三维显示系统研究及实现

发布时间：2018-05-27 03:23

本文选题：数字微镜 + 体三维显示　；参考：《南京航空航天大学》2006年硕士论文

【摘要】： 视觉是人类最重要的感觉之一,平面显示技术基本满足了视觉需求,但是其显示的图像缺乏真实立体感,不符合人眼观察周围事物的习惯。正因为如此,人们越来越不满足平面显示的限制,开始研究真正的三维显示技术。体三维显示是三维显示领域最前沿的一种解决方案,不同于传统的三维显示,它在透明体空间内显示图像,包含景物的高度、宽度及深度,最为符合人眼视觉特征。其最大的优点就是可以直接观察,无需佩戴眼镜等辅助设施,并且允许多人,多角度同时观察。在航空管制、CAD/CAM、辅助医疗诊断、广告、家庭娱乐等领域有着广阔的应用前景。对体三维显示的研究得到了国家“863”的支持,前期的显示平台获得了专家的一致好评。而本文主要针对原系统的不足提出了一个新的解决方案,最后设计、实现。文章首先对体三维相关技术做了详细的分析,从理论出发研究了体三维显示系统的原理和框架,按功能把系统分成了三个子系统,并详细阐述了每个子系统的功能和性能要求。随后提出了具体的实现方案,即采用投影面旋转构成圆柱形成像空间,利用目前空间光调制器领域最先进的数字微镜配合投影系统构成了体素激活系统,并设计了功能完善的体三维引擎把整个系统连接起来,完成了实际物理平台。课题研究的主要成果是提出了利用数字微镜的快速开关特性实现体显示的方案,设计了针对体三维显示系统的点、线绘制算法,坐标系统、顶点格式,推导出了模型切片算法、坐标映射算法,最后结合以上成果搭建了体三维显示平台。实验结果证明系统达到了设计的要求,验证了体三维显示的相关理论,并且性能优于前期的平台。文章最后针对实验中出现的问题和不足,提出了相应的解决方案,为下一步发展奠定了坚实的基础。
[Abstract]:Vision is one of the most important sensations of human beings. Plane display technology basically meets the needs of vision, but the images it displays lack of realistic three-dimensional sense, which does not accord with the habit of observing things around the human eyes. Because of this, people are less and less satisfied with the restriction of plane display and begin to study the real 3D display technology. Volume 3D display is the most advanced solution in the field of 3D display, which is different from traditional 3D display. It displays images in transparent body space, including the height, width and depth of the scene, which is most in line with the human visual characteristics. Its greatest advantage is that it can be observed directly, without wearing glasses and other auxiliary facilities, and allows multiple people, multiple angles to observe at the same time. In CAD / CAM, auxiliary medical diagnosis, advertising, home entertainment and other fields have a broad application prospects. The research on 3D display has been supported by national "863", and the previous display platform has been well received by experts. This paper proposes a new solution to the shortcomings of the original system, and finally designs and implements it. In this paper, the theory and framework of volume 3D display system are analyzed in detail. The system is divided into three subsystems according to its function, and the function and performance requirements of each subsystem are described in detail. Then a specific scheme is put forward, that is, the cylindrical imaging space is made up of projective plane rotation, and the voxel activation system is constructed by using the most advanced digital micromirror and projection system in the field of space light modulator. The whole system is connected with the body three-dimensional engine with perfect function, and the actual physical platform is completed. The main achievement of this paper is to put forward a scheme to realize volume display by using the fast switching characteristic of digital micromirror, to design the point, line drawing algorithm, coordinate system, vertex format for volume 3D display system, and to deduce the model slicing algorithm. Coordinate mapping algorithm, finally combined with the above results to build a volume three-dimensional display platform. The experimental results show that the system meets the design requirements and verifies the theory of volume 3D display and its performance is superior to that of the previous platform. Finally, aiming at the problems and shortcomings in the experiment, the corresponding solutions are put forward, which lays a solid foundation for the further development.
【学位授予单位】：南京航空航天大学
【学位级别】：硕士
【学位授予年份】：2006
【分类号】：TN873

【引证文献】