基于小型舌象采集平台的颜色重现算法和结构改进的探讨  

Tongue Image Acquisition Device Based Color Reproduction and Associated Improvements

作　　者：曹美玲[1] 蔡轶珩[1] 刘长江[1] 沈兰荪[1] 

机构地区：[1]北京工业大学信号与信息处理研究室,北京100022

出　　处：《世界科学技术-中医药现代化》2007年第5期106-110,共5页Modernization of Traditional Chinese Medicine and Materia Medica-World Science and Technology

基　　金：国家自然科学基金重点项目(60431020):中医关键诊断信息获取与处理理论与技术研究;北京市自然科学基金(3052005):中医舌诊形态特征自动分析方法的研究;国家自然科学基金仪器专项(60227101):中医舌象分析仪的研制;国家自然科学基金面上项目(60301003):面向中医诊断的舌象分析技术的研究

摘　　要：新型舌象分析仪体积小可便携,解决了卧姿病人舌象采集的问题,对中医临床诊断具有重要的意义。采集的原始舌图像颜色存在较大失真,必须经过颜色重现以保证舌象特征分析的准确度和可靠性。本文提出一种基于感兴趣色域的离线颜色重现算法,实验证明色彩的还原度有所提高。为了进一步提高小型舌象采集平台的性能,获取高质量的舌图像,改善颜色重现后的效果,本文对光源色温等重要指标进行了定量分析,重新标定了照明环境的多项参数,希望为今后小型舌象采集平台的优化设计提供参考。Tongue image analyzing instruments have increasingly become so small and portable that they can be used to collect samples from bedfast patients. This provides more opportunities for traditional tongue diagnosis, in both theoretical and practical context. To maintain the needed accuracy and reliability for tongue character analysis, a right color reproduction method has to be employed to reduce color distortions. In the study, an interesting gamut based off-line color reproduction method is used to enhance the color precision. In addition, to obtain a stable and high quality tongue image, authors have optimized some parameters to achieve a right illuminating environment and color temperature.

关 键 词：舌象分析 颜色重现 感兴趣色域 照明条件 积分球 

分 类 号：R241.25[医药卫生—中医诊断学]