Hyperspectral Tongue Imaging System Used in Tongue Diagnosis

A hyperspectral tongue imaging system is developed and used in tongue diagnosis. The basic principles and instrumental systems as well as its applications in tongue diagnosis are introduced. A tongue segmentation algorithm which can simultaneously utilizes spectral and spatial information of the hyperspectral tongue images data is also presented. As the wavelength of the hyperspectral tongue images cover the whole visible light, spectrums were used to represent tongue colors and a new algorithm based on Gabor filters was proposed to analyze tongue textures. The experimental results show the hyperspectral tongue imaging system can make much benefit to the computer-aided tongue diagnosis system.

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