Human body tongue nature and tongue fur separation method based on double wavelength spectrum differentiation index

Abstract

The invention provides a human body tongue nature and tongue fur separation method based on double wavelength spectrum differentiation index. The method includes the steps that an acquisition system for tongue pictures is built, hyper-spectrum information of a visible wave band of a tongue body or a combination of the visible wave band and a near-infrared wave band of the tongue body is acquired; the double wavelength ratio spectrum differentiation index for the whole tongue body surface is calculated; hyper-spectrum image segmentation for tongue body are carried out according to the double wavelength ratio spectrum differentiation index. In the separation method, the broadband optical information for the whole tongue body is first captured. The separation method far exceeds the RGB color image acquired by digital camera in information content. According to individual differences, the tongue quality and tongue fur whose double wavelength spectrum information with the strongest contrast ratio are extracted, and the information index description for the whole tongue body surface is then carried out. Based on statistical analyses, the acquisition of tongue quality and tongue fur can separate the spectrum differentiation degree index, the tongue quality and tongue fur separation can be carried out. The separation method can be better suited for cross distributions of tongue quality and tongue fur.

Description

technical field [0001] The invention relates to a dual-wavelength spectrum difference index separation method of human tongue and tongue coating. Background technique [0002] TCM clinical disease diagnosis is carried out through observation, smell, inquiry, palpation, and four diagnostic methods. Tongue diagnosis, as a part of inspection, plays a very important role in TCM clinical disease diagnosis. Tongue diagnosis in traditional Chinese medicine diagnoses diseases by observing the color of the tongue, the distribution of the tongue coating, the moistness of the tongue coating, the thickness of the tongue coating, and the shape and state of the tongue. Tongue diagnosis in traditional Chinese medicine mainly relies on the naked eye observation of doctors to diagnose diseases, which is highly subjective. With the development of science and technology, the research on the objectification of tongue diagnosis has attracted extensive attention from the medical and academic circ...

AI Technical Summary

Problems solved by technology

Patent CN103745217A proposes an automatic analysis method of TCM tongue color and fur color based on image retrieval. The patent firstly segments the tongue body area based on the Snakes model and TCM tongue body area division experience, and then utilizes K-means clustering to segment the segmented tongue body. Statistical analysis of the experience area where the tongue coating is located, and finally divide the tongue coating and tongue coating area; Patent CN102509312B proposes a color gamut space tongue coating separation method based on digital color images, according to the xyY standard color model plane, characterize 4 The color gamut space area of ​​each tongue quality and 4 kinds of tongue fur, and extract the tongue texture and tongue fur color gamut space decomposition curve to realize the separation of tongue texture and tongue fur area; the above patent tongue texture tongue fur separation is mostly combined with the experience of tongue body area division, based on digital image processing technology, to segment the area of ​​the tongue and tongue coating, but the human tongue and tongue coating are often staggered distribution, the method based on area segmentation cannot be fully applied to the actual staggered distribution

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