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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/83480

    Title: 利用編碼孔徑之高亮度高光譜成像系統;High-Brightness Hyperspectral Imaging System with Use of Coded Aperture
    Authors: 董澄逸;Tung, Cheng-Yi
    Contributors: 光電科學與工程學系
    Keywords: 高光譜影像;編碼孔徑;快照式高光譜成像;Hyperspectral imaging;Coded aperture;Snapshot hyperspectral imaging
    Date: 2020-08-11
    Issue Date: 2020-09-02 15:43:10 (UTC+8)
    Publisher: 國立中央大學
    Abstract: 不同於傳統針孔陣列式積分場光譜儀,需要在系統進光量及頻譜解析度之間做選擇。在快照式高光譜影像(Snapshot Hyperspectral Imaging)架構下,本團隊提出新型屏幕設計,利用編碼孔徑(Coded aperture)之編碼方式,取代傳統針孔陣列,以提升系統進光量。
    ;In contrast to traditional Integral Field Spectroscopy with pinhole array, it trades off light collection for spectrum resolution. Our team proposed a novel screen design to replace the traditional pinhole array. We utilized coded aperture based on snapshot hyperspectral imaging system in order to enhance the light throughput.
    We mounted the blazed grating in front of the camera to achieve snapshot hyperspectral system. In addition, we used two cameras to acquire color image and its corresponding hyperspectral cube at the same time. We also find an algorithm to decode the coded aperture system, and seek the suitable solution to wavelength localization and system response calibration. Through combining the concept of coded aperture and hyperspectral, we build a high-brightness hyperspectral system without sacrificing spectral resolution. Then we promoted a theory limit formula, connecting space-bandwidth product and number of wavelength channels. So that we can design the coded aperture snapshot hyperspectral system according to our demand.
    Appears in Collections:[光電科學研究所] 博碩士論文

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