光学学报, 2012, 32 (12): 1230001, 网络出版: 2012-09-14   

基于二次成像的像面干涉高光谱成像方法

Image Plane Interferometric Hyperspectral Imaging Based on Re-Imaging
作者单位
南京理工大学电子工程与光电技术学院, 江苏 南京 210094
摘要
像面干涉高光谱成像技术主要应用于遥感成像领域,为了实现不同距离目标的光谱成像探测,提出了一种基于二次成像的像面干涉高光谱成像方法。通过在无限远成像系统中加入前端成像物镜、中继准直物镜和横向剪切分束器,构建一个二次成像的干涉系统。通过采用分离式的前端成像物镜方案,选用变焦镜头或不同焦距的定焦镜头,有效地兼顾远、近距离目标的成像光谱探测。对该方法的成像系统、光谱分辨率和推扫方式等方面进行了分析,进一步搭建了实验装置,对室内近场目标和室外远场目标进行了成像实验,并对生物组织进行了显微光谱干涉成像实验。实验结果表明,该成像方法能够有效用于不同距离目标的高光谱成像探测。
Abstract
Technology of image plane interferometric hyperspectral imaging is mainly applied in remote sensing imaging field. In order to realize spectral imaging of targets at different distances, a method of image plane interferometric hyperspectral imaging is presented. A re-imaging interferometic system is set up by inserting front-end imaging lens, relay collimating lens and transverse shear beam splitter in infinite imaging system. A separated front-end imaging lens method with choice of zoom lens or lens of different focal length is adopted to achieve spectral imaging of targets at long or short distances. The imaging system, resolution of spectrum and push-broom mode are analyzed. Experimental device is set up to detect the targets of near field indoor and far field outdoor. A microscopic spectral imaging test of biological tissue is also carried out with the device. Experimental results show that the proposed imaging method is effectively applied in hyperspectral imaging of targets at different distances.

李建欣, 孟鑫, 周伟, 姚良涛, 朱日宏. 基于二次成像的像面干涉高光谱成像方法[J]. 光学学报, 2012, 32(12): 1230001. Li Jianxin, Meng Xin, Zhou Wei, Yao Liangtao, Zhu Rihong. Image Plane Interferometric Hyperspectral Imaging Based on Re-Imaging[J]. Acta Optica Sinica, 2012, 32(12): 1230001.

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