Spectroscopy and Spectral Analysis, Volume. 33, Issue 2, 571(2013)
Spectral Calibratioo of Hyperspectral Imager Based on Spectral Absorption Target
Retrieval of center wavelength and bandwidth is a key step for quantitative analysis of hyperspectral data. The present paper proposes a spectral calibration method of hyperspectral imager, whose spectrum covers visible and near-infrared band, using spectral absorption target. Ground calibration experiment was designed for a hyperspectral imager with a bandwidth of 6 nm. Hyperspectral imager and ASD spectrometer measured the same spectral absorption target synchronously. Reflectance spectrum was derived from the different data set. Center wavelength and bandwidth were retrieved by matching the reflectance data from hyperspectral imager and ASD spectrometer. The experiment result shows that this method can be applied in spectral calibration of hyperspectral imagers to improve the quantitative studies on hyperspectral imagery.
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GOU Zhi-yang, YAN Lei, CHEN Wei, ZHAO Hong-ying, YIN Zhong-yi, DUAN Yi-ni. Spectral Calibratioo of Hyperspectral Imager Based on Spectral Absorption Target[J]. Spectroscopy and Spectral Analysis, 2013, 33(2): 571
Received: Sep. 29, 2011
Accepted: --
Published Online: Mar. 27, 2013
The Author Email: Zhi-yang GOU (gouzhiyang@163.com)