Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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WLDF: Effective Statistical Shape Feature for Cracked Tongue Recognition

  • Li, Xiao-qiang (School of Computer Engineering and Science, Shanghai University) ;
  • Wang, Dan (School of Computer Engineering and Science, Shanghai University) ;
  • Cui, Qing (School of Computer Engineering and Science, Shanghai University)
  • Received : 2015.10.31
  • Accepted : 2016.09.22
  • Published : 2017.01.02
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Abstract

This paper proposes a new method using Wide Line Detector based statistical shape Feature (WLDF) to identify whether or not a tongue is cracked; a cracked tongue is one of the most frequently used visible features for diagnosis in traditional Chinese Medicine (TCM). We first detected a wide line in the tongue image, and then extracted WLDF, such as the maximum length of each detected region, and the ratio between maximum length and the area of the detected region. We trained a binary support vector machine (SVM) based on the WLDF to build a classifier for cracked tongues. We conducted an experiment based on our proposed scheme, using 196 samples of cracked tongues and 245 samples of non-cracked tongues. The results of the experiment indicate that the recognition accuracy of the proposed method is greater than 95%. In addition, we provide an analysis of the results of this experiment with different parameters, demonstrating the feasibility and effectiveness of the proposed scheme.

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