| LCTF调谐的高光谱成像系统辐射定标方法研究 |
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| 引用本文： | 方薇,张冬英,钱玮,洪津,杜丽丽. LCTF调谐的高光谱成像系统辐射定标方法研究[J]. 光学技术, 2009, 35(3) |
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| 作者姓名： | 方薇 张冬英 钱玮 洪津 杜丽丽 |
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| 作者单位： | 中国科学院合肥智能机械研究所,合肥,230031;中国科学院安徽光学精密机械研究所,合肥,230031;解放军炮兵学院,合肥,230031;中国科学院安徽光学精密机械研究所,合肥,230031 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 简单介绍了基于LCTF调谐的高光谱成像系统积分时间定档,重点描述了一个定标检测系统,并从暗电流、响应线性、均匀性和稳定性四个方面详细阐述了定标方法。通过在实验室对相机的定标实验,给出了辐射定标系数;并利用一次野外试验获取的数据,对定标系数进行验证。试验数据的分析表明,该定标系数可用于光学图像处理中的辐射校正,实现图像数据的定量化分析。
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| 关 键 词： | LCTF 积分时间 定标 积分球定标系统 |
Radiometric calibration method for LCTF hyperspectral image |
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| FANG Wei,ZHANG Dong-ying,QIAN Wei,HONG Jin,DU Li-li. Radiometric calibration method for LCTF hyperspectral image[J]. Optical Technique, 2009, 35(3) |
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| Authors: | FANG Wei ZHANG Dong-ying QIAN Wei HONG Jin DU Li-li |
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| Affiliation: | 1.Institute of Intelligent Machines;Chinese Academy of Sciences;Hefei 230031;China;2.Anhui Institute of Optics and Fine Mechanics;China;3.Artillery Academy of PLA;China |
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| Abstract: | It is briefly introuduced that how to divide exposure time of the hyperspectral imaging system based on LCTF.The calibration method and its system is described.The calibration method elaborated in details is from dark current,linearity and uniformity of response and stability of the imaging system.The calibration experiment to the imaging system is taken place in the lab.and the radiometic correction coefficient is obtained.A group of image data acquired in January,2008 on site field can be used to validate... |
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| Keywords: | LCTF |
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