基于高光谱成像技术的中医舌象辅助诊断系统

A Novel System for Tongue Inspection Based on Hyperspectral Imaging System

中医舌诊是传统中医的一种重要诊断方法。由于舌诊是一种定性的、主观的和基于经验的诊断方法,从而制约了中医舌诊在临床医学上的广泛应用。针对中医舌诊现代化中存在的问题,开发研制了一种基于高光谱成像技术的舌象辅助诊断系统。这一系统包括高光谱舌图像采集、图像存储、特征提取和辅助诊断几部分。系统使用高光谱成像技术代替通常使用的数码相机进行舌图像采集,并对高光谱舌图像进行了图像和光谱特征提取,然后使用贝页斯分类器初步建立起了舌象特征与病症之间的联系,最后通过初步试验证明了这一系统的有效性。

Tongue inspection is an important diagnostic method in traditional Chinese medicine （TCM）. However, due to its qualitative, subjective and experience-based nature, traditional tongue inspection has found very limited application in modern clinical medicine. In this paper, a novel system for tongue inspection based on hyperspeetral imaging system is developed. The system includes image acquisition, feature extraction and classification functions. In this system, two kinds of quantitative features, spatial and spectral, are extracted from hyperspectral tongue images by using popular digital image processing techniques. Then, Bayesian networks are employed to model the relationship between these quantitative features and diseases. The preliminary results show that the system is sensitive to the abnormal tongues.