中医舌象的物理特性主要反映在舌体的颜色上,而如何进行颜色的测量以及如何在不同设备间保持色彩的一致性和重复性,即彩色校正是研制中医舌象分析仪必须解决的难题.该文简要介绍了中医舌象分析仪的系统结构,同时讨论了照明光源的选择和设计,最后提出了采用神经网络进行彩色校正的方法.

Physical characteristic of Chinese-medicine tongue is mainly reflected by colors, in the research of tongue analysis instrument, the most important and hard technique is how the colors to be measured and how to keep the accordance and repeated of colors between the different devices. In this paper, the structure of tongue analysis instrument is briefly described. Choice and design of illumination is given, and the color calibration method to camera and CRT using artificial neural network is presented.