Optical material classification and recognition method based on hyperspectral data information maximization
A data information, classification and recognition technology, applied in the fields of electrical digital data processing, character and pattern recognition, special data processing applications, etc. High classification efficiency and recognition accuracy, and the effect of improving accuracy
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[0040] Such as figure 1 Shown, be the flowchart of the inventive method, main steps are as follows:
[0041] (1) Select t data from the collected n-dimensional hyperspectral data to form a t×n training data matrix X 训练 , choose different from X 训练 The s data form s×n test data matrix X 测试 , where t and s are both positive integers. In general, t takes 70% of the total data volume. When the data difference is small, the t value can take a smaller value. Such as figure 2 As shown in the example, the spectral band of the hyperspectral data of willow leaves collected in the example is 350-2500nm, and the data dimension n=2151 after interpolation. Such as image 3 As shown in the example, a total of 3300 hyperspectral data samples were collected from 66 tree species. In the figure, the x-axis is the sample label, the y-axis is the spectral wavelength, and the z-axis is the spectral reflectance of the actually collected material. From this, it can be obtained that t=3300*70%...
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