Method and device for rapidly detecting nutritional information of tea tree based on hyperspectral imaging technique
A technology of hyperspectral imaging and detection method is applied in the field of rapid detection and device of tea tree nutritional information based on hyperspectral imaging technology. and shape, crop spectral information is not obvious and other problems, to achieve the effect of improving the level of intelligent management, increasing tea production, and fast detection.
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[0022] Example implementation steps of the present invention refer to figure 2 , for an example implementation see figure 1 . First select a batch of tea tree fresh leaf samples (generally greater than 100 samples) for model calibration, using a filter-type hyperspectral imaging device (such as figure 1 ) carry out hyperspectral data collection on the fresh leaf sample; after the data collection is completed, measure its internal N, P, K content by atomic absorption spectrometry, as the standard value of N, P, K content in this sample; then the original hyperspectral data Dimensionality reduction, extracting image information and spectral information that can reflect the characteristics of leaves inside and outside; then, extracting feature variables such as color, texture, and shape from the feature image, and extracting principal component feature variables from spectral information; finally, these feature variables are fused with each other , combined with the standard v...
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