Analysis of the Spectral Characteristics of Pure Moxa Stick Burning by Hyperspectral Imaging and Fourier Transform Infrared Spectroscopy

Figure 2

HSI of MS burning at a wavelength of 400~1000 nm. (a) is the HSI of a pure MSCS that has been burned for 5 min at wavelengths of 600, 650, 700, 750, 800, 850, 800, 950, and 1000 nm. The color depth on the HSI image represents the intensity of the reflected light. The darker the color is, the higher the intensity is and vice versa. The color code from low to high denotes the RRI from low to high. Before 650 nm, the MSCS burning did not produce imaging, while the color of MSCS burning darkened gradually after 650 nm and became lighter after 850 nm. (b) is the HSI of MSCS at different burning time points at the wavelength of 850 nm; (c) is the spectrum of MSCS at different burning time points at the wavelength of 400~1000 nm.

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(b)

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