Coated tongue division and extracting method for colored digital photo of tongue

An extraction method, tongue technology, applied in image data processing, instruments, calculations, etc., can solve problems such as neglecting doctors

Inactive Publication Date: 2007-02-07
TSINGHUA UNIV
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  • Summary
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  • Description
  • Claims
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Problems solved by technology

[0007] (3) Algorithms rely too much on objective dat

Method used

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  • Coated tongue division and extracting method for colored digital photo of tongue
  • Coated tongue division and extracting method for colored digital photo of tongue
  • Coated tongue division and extracting method for colored digital photo of tongue

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Experimental program
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Embodiment Construction

[0061] The core of this method is realized by Matlab. The software interface is written in Delphi. The tongue photo is taken by a doctor of traditional Chinese medicine with a digital camera. When taking the photo, the patient sticks out the tongue so that the doctor can take the whole tongue into the photo.

[0062] The method contains the following steps in sequence:

[0063] 1) Input the segmented tongue picture into the computer.

[0064] In the picture, the tongue part of the photo is kept, and the other parts are filled with white.

[0065] 2) Pretreatment: remove reflective spots.

[0066] First, the color image is mapped to a grayscale image, and then the threshold method is used to judge whether the area on the tongue is a reflective point. The method for judging whether the pixel is a reflective point is:

[0067] f(x,y)>threshold_Flash

[0068] Among them, (x, y) represents the coordinates, f(x, y) is the gray value of the pixel at the coordinates (x, y) of th...

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Abstract

The related color image processing technology for medical diagnosis comprises: pre-processing to remove reflecting points, merging the image to substitute the position with color same as the near position; cutting image with Ostu threshold value to classify the tongue and coated tongue; in color space, cutting the coated tongue with Ostu threshold value to classify the thick coated tongue and the thin; finally, marking with different colors. This invention has fine cutting result benefit to doctor decision.

Description

technical field [0001] The invention relates to a method for segmenting and extracting tongue fur from a color digital photo of tongue for tongue diagnosis in traditional Chinese medicine, and belongs to the fields of color image processing and image analysis and understanding. Background technique [0002] In the tongue diagnosis of TCM diagnostic methods, the thickness, color, area occupied and distribution position of the tongue coating on the human tongue are very important parameters. In actual diagnosis, doctors often make judgments based on their own experience, which often leads to inconsistencies in the diagnosis that may be obtained when the same patient is diagnosed by several doctors. Every doctor relies on his own judgment and diagnosis subjectively, so the standard of tongue diagnosis is very vague. In order to solve this problem, image processing technology is applied to the analysis of tongue coating, which provides reference parameters for doctors during to...

Claims

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Application Information

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IPC IPC(8): G06T5/00
Inventor 白净张永红吴佳史云迪
Owner TSINGHUA UNIV
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