Beginning with analysis of traditional central perspective, this paper introduces the basic concept of flat cylinder perspective ( FCP ) and profoundly discusses the working principles of panoramic annular lens ( PAL ), one of the optical elements that can realize FCP. 本文从分析传统中心投影法入手,介绍了平面圆柱投影(FCP)的基本概念、主要特点,深入地探讨了实现FCP的一种光学器件&全景环形透镜(PAL)的工作原理。
Image principle of Panoramic Annular Lens(PAL) and methods of digital image processing of its annular image are discussed in the former part of the thesis, and processing results are also shown. 本论文首先叙述了全景环形成像原理以及环形像的数字图像处理方法,并且展示了相应的处理结果。
For the special imaging feature of Panoramic Annular Lens(PAL), that forming an annular image circling the axis and having endless depth of field, the observing system made up of PAL can be used to observe object around the lens without moving part. 全景环形透镜(PAL)独特的成象性能,即环绕光轴360°产生一个环形象且景深为无穷远,使得由PAL组成的观测系统没有活动部件能同时观察透镜周围的景物。
Panoramic Annular lens is a optical system that can achieve 180 ° view field without any rotational parts. It will be widely used in national defence, aviation, medicine and traffic. 全景环形成像镜头是一种不需要任何转动部件就能实现180°大视场成像的光学系统,在国防、航空、医学、交通等领域具有非常广泛的应用前景。