Laser-induced fluorescence monitoring of Chinese longjing tea

Liang Mei; Zuguang Guan; Gabriel Somesfalean; Sune Svanberg

doi:10.1117/12.974562

19 October 2012 Laser-induced fluorescence monitoring of Chinese longjing tea

Liang Mei, Zuguang Guan, Gabriel Somesfalean, Sune Svanberg

Proceedings Volume 8531, Remote Sensing for Agriculture, Ecosystems, and Hydrology XIV; 85311T (2012) https://doi.org/10.1117/12.974562
Event: SPIE Remote Sensing, 2012, Edinburgh, United Kingdom

Abstract

Laser-induced fluorescence (LIF) spectra of a bush and numerous branches of Chinese Longjing tea were investigated remotely with lidar techniques. The intensity ratio between the far red fluorescence (FRF) and red fluorescence (RF) due to the chlorophyll content of the tea branches were analyzed to study the growth conditions in different villages around Hangzhou, China. Dried Longjing tea leaves were also measured by LIF techniques in the laboratory. A chemometric method based on singular value decomposition (SVD) and linear discriminant analysis (LDA) was used to evaluate the tea qualities of the dried tea leaves.

Citation Download Citation

Liang Mei, Zuguang Guan, Gabriel Somesfalean, and Sune Svanberg "Laser-induced fluorescence monitoring of Chinese longjing tea", Proc. SPIE 8531, Remote Sensing for Agriculture, Ecosystems, and Hydrology XIV, 85311T (19 October 2012); https://doi.org/10.1117/12.974562

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