| 题名 | 基于DMD被动膺热光源的多光谱关联成像研究 |
| 作者 | 陆明海 |
| 学位类别 | 硕士 |
| 答辩日期 | 2011 |
| 授予单位 | 中国科学院上海光学精密机械研究所 |
| 导师 | 韩申生 |
| 关键词 | 关联成像，压缩感知，多光谱成像，DMD，超分辨成像 |
| 其他题名 | The research of the multi-spectral correlated imaging with passive pseudo-thermal light based on DMD |
| 中文摘要 | 多光谱成像是一种将光谱分析和图像分析相结合的成像技术。经过近30年的发展，它己经被广泛地应用于航天航空遥感、工业、农业、环境与灾害监测、大气探测以及军事应用等领域，对社会的进步与发展起到了积极地促进作用。关联成像，又称为鬼成像，是近十年发展起来的一种新型的成像技术，它实现了物体的非局域成像，使物体像成在并不包含物体的光路上。将压缩感知compressivesensing, CS理论与关联成像相结合而成的压缩感知关联成像，大大提高了信息的提取效率。论文主要介绍的是将数字微镜器件(digital micromirror device,DMD)应用到关联成像中，将DMD作为虚拟的参考臂，实现了单臂的关联成像。在此成像基础上，应用衍射光栅的分光系统对探测器接收的光强信号进行谱分辨，根据压缩感知成像原理，实现了基于DMD被动膺热光源的多光谱关联成像的成像方案。此外，在基于DMD的压缩感知关联成像中，引入成像系统的点扩散函数，应用压缩感知成像原理得到了物体的超分辨率像。本篇论文主要包括以下四个部分. |
| 英文摘要 | Multi-spectral imaging technology is the combination of spectrum analysis and image analysis. With a near 30-year development, this technology has been widely used in many fields of our society, for example, remote sensing, industry, agriculture, environmental disaster monitoring, atmospheric sounding, military application and so on. And it is of benefit to the development and improvement of the society. Correlated imaging, which is also called ghost imaging, is a new-style imaging technology which is developed rapidly during the recent decades. According to the theory of correlated imaging, the non-local imaging is realized, as a result, the image of object is achieved in the optical path without holding the object. For promoting the extracting efficiency of image information, we combine the theory of compressive sensing(CS) with the correlated imaging; which is called ghost imaging via compressive sensing(GICS). Meanwhile, DMD(digital micromirror device) ,which is taken as the virtual reference arm, has been introduced into the correlated imaging, and we realize the correlated imaging with a single arm. Based on the correlated imaging with DMD, an optical splitting system based on diffraction grating is applied in the spectral analysis. According to the principle of CS, the mufti-spectral correlated imaging with DMD is realized. In addition, we introduce the point spread function (PSF) of the imaging system ,which is taken as one part of sensing epresentation .And we realize the super-resolution imaging based on the theory of GICS with DMD. This thesis consists of four chapters. |
| 语种 | 中文 |
| 内容类型 | 学位论文 |
| 源URL | [http://ir.siom.ac.cn/handle/181231/16820]  |
| 专题 | 上海光学精密机械研究所_学位论文 |
| 推荐引用方式 GB/T 7714 | 陆明海. 基于DMD被动膺热光源的多光谱关联成像研究[D]. 中国科学院上海光学精密机械研究所. 2011. |
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