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Quantitative analysis method for traditional Chinese medicine tongue colors based on spectral information

A technology of quantitative analysis and spectral information, applied in the field of tongue color quantification and grading, which can solve problems such as inability to reflect the changing trend of disease syndromes and inconsistencies

Inactive Publication Date: 2019-03-01
BEIJING UNIV OF TECH
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Problems solved by technology

This quantification and grading method is not related to the changes in TCM clinical syndromes, and the changes in magni

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  • Quantitative analysis method for traditional Chinese medicine tongue colors based on spectral information
  • Quantitative analysis method for traditional Chinese medicine tongue colors based on spectral information
  • Quantitative analysis method for traditional Chinese medicine tongue colors based on spectral information

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Embodiment Construction

[0041] In this method, a hyperspectral camera is used to acquire hyperspectral tongue images. According to the spectral accuracy of the hyperspectral camera, the spectral dimension of the collected data can be determined, that is, the number of elements of the collected spectral reflectance vector of each pixel, denoted as N. A hyperspectral tongue image with a width of W and a height of H can be expressed as a matrix I(x,y,z), where (x,y) are pixel coordinates (1≤x≤W; 1≤y≤H), z is the spectral discrete position (1≤z≤N). For the specific implementation process, please refer to the attached figure 1 ,as follows:

[0042] 1. Classification of tongue quality and coating based on spectrum:

[0043] (1) To collect hyperspectral image samples of various TCM tongue and fur colors, it is necessary to include tongue color cases of light red, light white, red, crimson, and purple, as well as cases of white, yellow, brown, and black fur colors ; Each type of use case needs to contain...

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Abstract

The invention discloses a quantitative analysis method for traditional Chinese medicine tongue colors based on spectral information, and belongs to the field of objective researches on traditional Chinese medicine inspection diagnosis. Spectral reflectance of different types of tongues is collected to obtain a spectral reflectance data set of tongue colors and tongue coating colors, and a tongue color and tongue coating color classifier is established through a classification algorithm. For a certain tongue image, a tongue body part is separated by the classifier. The tongue body part is composed of tongue pigments, and an optical absorption scattering model of the tongue body is established according to the optical absorption and scattering principle of particles. Based on the model, thepigment concentration in the model is inversely determined according to the spectral reflectance of each pixel of the tongue body. The pigment concentration is utilized as a measurement means of the traditional Chinese medicine tongue colors to provide quantitative data reference related to syndrome degree for clinical treatment. By means of the method, number axes of red tongue and purple tonguemeasurement values can be established according to the formation mechanism of the traditional Chinese medicine tongue colors. For any tongue color, the measurement values on the number axes can be obtained by calculating the concentration of each pigment.

Description

technical field [0001] The invention belongs to the research field of objectification of traditional Chinese medicine inspection, in particular to the field of tongue color quantification in traditional Chinese medicine inspection, which is used for realizing tongue color quantification and grading that changes with diseases and conforms to cognitive laws of traditional Chinese medicine. Background technique [0002] Tongue diagnosis in TCM is a diagnostic method to understand the physiological functions and pathological changes of the human body by observing changes in tongue images, and plays an important role in clinical diagnosis of TCM. The traditional tongue diagnosis method relies on the visual observation and language description of TCM, and lacks quantitative description indicators and objective recording means, which brings difficulties to the description and classification of TCM tongue diagnosis. With the development of modern scientific and technological means i...

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Application Information

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IPC IPC(8): A61B5/00
CPCA61B5/0075A61B5/0077A61B5/4854A61B5/7267
Inventor 蔡轶珩郭雅君刘嘉琦胡绍斌
Owner BEIJING UNIV OF TECH
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