Spectroscopy and Spectral Analysis, Volume. 32, Issue 12, 3377(2012)
Analysis of Chlorophyll in Gannan Navel Orange with Algorithm of GA and SPA Based on Hyperspectral
The hyperspectral effective information of Gannan navel orange was extracted by genetic algorithm (GA) and successive projections algorithm (SPA) for partial least squares (PLS) model. Average spectral was extracted from region of interest(ROI) of hyperspectral images after preprocessing.GA and SPA were used to select 27 and 8 characteristic wavelengths for chlorophyll model with PLS. The correlation coefficients and rms error of GA-PLS were 0.80 and 2.45, and the correlation coefficients and rms error of SPA-PLS were 0.83 and 2.30, respectively.Overall results sufficiently demonstrate that SPA-PLS model has a greater advantage which can be combined with hyperspectral technique to be a nondestructive and rapid analytical method.
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LIU Yan-de, ZHANG Guang-wei, CAI Li-jun. Analysis of Chlorophyll in Gannan Navel Orange with Algorithm of GA and SPA Based on Hyperspectral[J]. Spectroscopy and Spectral Analysis, 2012, 32(12): 3377
Received: May. 26, 2012
Accepted: --
Published Online: Jan. 14, 2013
The Author Email: Yan-de LIU (jxliuyd@163.com)