专业英语课程论文模版.doc

上海大学2011 ～ 2012 学年 春季 学期 研究生课程考试 课程名称： 专业英语 课程编号： 091000701 论文题目: (英文) 研究生姓名: 学 号: 论文评语: 成 绩: 任课教师: 郑华东 评阅日期: Review of three-dimensional holographic imaging by multiple-viewpoint-projection based methods (（居中，字体：三号Arial） Li Fu (李 阜) (School of Mechatronic Engineering and Automation, Shanghai University, Shanghai 200072, China) Abstract：(不少于150英文单词) Methods of generating multiple viewpoint projection holograms of three-dimensional (3-D) realistic objects illuminated by incoherent white light are reviewed in this paper. Using these methods, it is possible to obtain holograms with a simple digital camera, operating in regular light conditions. Thus, most disadvantages characterizing conventional digital holography, namely the need for a powerful, highly coherent laser and extreme stability of the optical system, are avoided. The proposed holographic processes are composed of two stages. In the first stage, regular intensity-based images of the 3-D scene are captured from multiple points of view by a simple digital camera. In the second stage, the acquired projections are digitally processed to yield the complex digital hologram of the 3-D scene, where no interference is involved in the process. For highly reflecting 3-D objects, the resulting hologram is equivalent to an optical hologram of the objects recorded from the central point of view. We first review various methods to acquire the multiple viewpoint projections. These include the use of a microlens array and a macrolens array, as well as digitally generated projections that are not acquired optically. Next, we show how to digitally process the acquired projections to Fourier, Fresnel, and image holograms. Additionally, to obtain certain advantages over the known types of holograms, the proposed hybrid optical-digital process can yield novel typ