Tongue body tooth mark recognition device and method based on tongue body contour line

Abstract

The invention provides a tongue body tooth mark recognition device and method based on a tongue body contour line. The method comprises the steps of performing gray scale conversion on a tongue body image to generate a gray scale picture; binarizing the grayscale picture to generate a binary image; performing image contour tracking processing on the binary image to generate a tongue contour line;calculating the centroid of the tongue body according to the tongue body contour line; determining a tongue root boundary region according to the tongue mass center; calculating a tongue body contourconvex hull as an approximate tongue body tooth mark contour line according to the tongue body contour line; determining a tooth mark position according to the maximum distance between the tongue bodycontour line and the approximate tongue body tooth mark contour line; judging whether tooth marks exist at the outline of the tongue root or not; if the tooth marks exist at the outline of the tongueroot, deleting the tooth marks at the outline of the tongue root; and if the tooth marks do not exist at the outline of the tongue root, marking the tongue body image as tongue body tooth marks according to the determined tooth mark positions, and finally generating a tongue body image marked with the tooth mark positions. According to the invention, the accuracy of tongue tooth mark identification and extraction is improved.

Description

technical field [0001] The invention relates to the technical field of tongue image processing in traditional Chinese medicine, in particular to a tongue tooth mark recognition device and method based on tongue contour lines. Background technique [0002] Tooth-scarred tongue refers to the traces of teeth on the edge of the tongue, also known as tooth-marked tongue, which is mostly caused by the oppression of the tooth margin due to the fat tongue. guiding significance. Dental tongue is easy to identify in tongue diagnosis, and is less affected by external factors (such as food, medicine, etc.). The theory of traditional Chinese medicine believes that the indented tongue is mostly caused by deficiency of qi, spleen or yang. Because the insufficiency of the spleen cannot transport and transform water and dampness, the tongue becomes fat and large. Therefore, the indented tongue governs spleen deficiency and excessive dampness. If it is pale and moist, it is cold and damp; i...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a tongue tooth mark recognition device and method based on the tongue contour line, aiming to solve the technology of high error rate of tongue tooth mark identification caused by tongue peripheral color and tongue boundary curve burrs question

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