| 计算层析成像光谱仪的仿真研究 |
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| 引用本文： | 刘良云,相里斌,杨建峰,李英才.计算层析成像光谱仪的仿真研究[J].光学学报,2000,20(6):805-809. |
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| 作者姓名： | 刘良云 相里斌 杨建峰 李英才 |
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| 作者单位： | 中国科学院西安光学精密机械研究所,西安,710068 |
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| 基金项目： | 国家科委 86 3高科技项目 |
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| 摘 要： | 介绍一种无需时间或空间扫描的新型成像光谱仪计算层析成像光谱仪 (CTIS) ,并对其基本原理进行了详细叙述和方程式表达。系统的投影矩阵是由理论推导得出 ,采用广义矩阵的截断奇异值分解法作为计算机层析成像重建算法。为了便于计算机仿真 ,建立了一种简单的数理模型。仿真实验表明该理论、数理模型和算法准确合理 ,且算法的重建效率高、系统误差小
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| 关 键 词： | 计算层析成像光谱仪 中心切片定理 奇异值分解法 |
| 收稿时间： | 1998/12/14 |
Simulation Study of Computed-Tomograhpy Imaging Spectrometer |
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| Liu Liangyun,Xiangli Bin,Yang Jianfeng,Li Yingcai.Simulation Study of Computed-Tomograhpy Imaging Spectrometer[J].Acta Optica Sinica,2000,20(6):805-809. |
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| Authors: | Liu Liangyun Xiangli Bin Yang Jianfeng Li Yingcai |
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| Abstract: | A temporally and spatially non scanning imaging spectrometercomputed tomography imaging spectrometer (CTIS) is introduced. The primary theories are described in details and a mathematical model is built. The system projector matrix of the model is calculated. With the SVD reconstruction algorithm, the simulated experiments are performed. The results show that the reconstruction algorithm is efficient and precise, and that the model and the theorem are all right. |
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| Keywords: | computed tomography imaging spectrometer the central slice theorem singular value decomposition |
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