[Analysis of studies on pattern recognition of tongue image in traditional Chinese medicine by computer technology].

The article analyzed the contemporary study of pattern recognition of tongue images in traditional Chinese medicine by computer technology from its key sectors. It regards that the methods of orthogonal design and evaluation of image quality should be introduced to get a high-quality and practicable condition. In the field of tongue image segmentation, multiple methods used together are expected to improve the effect of segmentation. A scientific and canonical standard of tongue diagnosis based on comprehensive experts' experience with Delphi evaluation method and multi-center experts diagnosis on internet are also very essential. The study of pattern recognition on tongue image is still concentrated on the color. Further study should be extended to achieve quantification. And a comprehensive diagnosis on pattern recognition of tongue image is the aim that should be focused on later.