Hyperspectral laser-induced flourescence imaging for assessing internal quality of kiwi fruit

Muhua Liu; Yifeng Liao; Xiaomei Zhou

doi:10.1117/12.790739

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22 February 2008 Hyperspectral laser-induced flourescence imaging for assessing internal quality of kiwi fruit

Muhua Liu, Yifeng Liao, Xiaomei Zhou

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Proceedings Volume 6622, International Symposium on Photoelectronic Detection and Imaging 2007: Laser, Ultraviolet, and Terahertz Technology; 66220I (2008) https://doi.org/10.1117/12.790739
Event: International Symposium on Photoelectronic Detection and Imaging: Technology and Applications 2007, 2007, Beijing, China

Abstract

This paper describes an experimental study on non-destructive methods for predicting quality of kiwifruits using fluorescence imaging. The method is based on hyperspectral laser-induced fluorescence imaging in the region between 700 and 1110 nm, and estimates the kiwifruits quality in terms of internal sugar content and firmness. A station for acquiring hyperspectral laser-induced fluorescence imaging has been designed and carefully choosing each component. The fluorescence imaging acquired by the station has been pre-processed by selecting regions of interest (ROIs) of 50 100 × pixels. A line regressing prediction method estimates the quality of kiwifruit samples. The results obtained in classification show that the station and prediction model enables the correct discrimination of kiwifruits internal sugar content and firmness with a percentage of r= 98.5%, SEP=0.4 and r=99.9%, SEP=0.62.

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Muhua Liu, Yifeng Liao, and Xiaomei Zhou "Hyperspectral laser-induced flourescence imaging for assessing internal quality of kiwi fruit", Proc. SPIE 6622, International Symposium on Photoelectronic Detection and Imaging 2007: Laser, Ultraviolet, and Terahertz Technology, 66220I (22 February 2008); https://doi.org/10.1117/12.790739

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