Study on the Identification of <i>Radix Bupleuri</i> from Its Unofficial Varieties Based on Discrete Wavelet Transformation Feature Extraction of ATR-FTIR Spectroscopy Combined with Probability Neural Network

<div>Division of three feature regions of detail signal in DWT domain. (a)<i> Radix Bupleuri</i>; (b) root of the<i> Bupleurum smithii</i> Wolff; (c) root of the<i> Bupleurum bicaule</i> Helm.</div>

International Journal of Analytical Chemistry

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Figure 4

Figure 4: Study on the Identification of <i>Radix Bupleuri</i> from Its Unofficial Varieties Based on Discrete Wavelet Transformation Feature Extraction of ATR-FTIR Spectroscopy Combined with Probability Neural Network 

Figure 4 | Study on the Identification of Radix Bupleuri from Its Unofficial Varieties Based on Discrete Wavelet Transformation Feature Extraction of ATR-FTIR Spectroscopy Combined with Probability Neural Network 