智能专家型名优茶审评系统的设计与研究

针对传统茶叶感官评审中的不足,开发设计基于智能专家型名优茶审评系统,为茶叶品质控制与评鉴提供一种较为快捷、客观、公正的方法。该评审系统主要是利用数码相机和扫描仪,拍摄干茶与茶汤的外观图片,借助Photoshop 7.0软件,运用S-处理法对采集图片色泽进行分析,以样品色泽参数L、a均值,通过拟合方程T₂=17.2+0.15（2L₁+L₂）–0.4（a₁+3a₂）,反映茶叶内在品质;为使系统更加客观、公正,增加人为感官易于判断的整体综合审评印象分T₁修正指标,该指标仅审评茶叶的外形一致、老嫩均匀、异物异味及新旧真假等人为经验及专业技术要求相对较低的因子;基于智能专家型茶叶审评系统（IESFTE）数模为：T_ZF=17.2+0.25T₁+0.15（2L₁+L₂）–0.4（a₁+3a₂）。将由该评审系统数模所得评审分值与系统样品库中同类茶样比对,给出茶叶评审报告。经检验,系统评审结果与名优茶审评专家的评审结果接近。

Design and Research on the Intelligent Expert System of Famous Tea Evaluation

The Intelligent Expert System of Famous Tea Evaluation was developed,against the shortage of traditional tea evaluation,so as to provide a more efficient method of objective and fair for the quality control and evaluation of tea.This system is the use of digital cameras and scanners,capturing the appearance of dry tea and tea infusion,and then using S-acquisition image processing method for color analysis with Photoshop 7.0 software.By using the mean value of color parameters L of tea sample,with regression equation: T2=17.2+0.15(2L1+L2)-0.4(a1+3a2),to reflect the inherent quality of tea.To make the system more objective and impartial,adding the revised indicators,which characterized a comprehensive review of the overall impression of the tea sub-T1,and those factors that easy to judge through the human sensory senses.The index only contained those factors that the requirement of human experience and professional technique were relative low such as the consistent review of the shape and uniformity of tea,foreign matter and odour.The digital-model of The Intelligent Expert System of Famous Tea Evaluation(IESFTE) is: TZF=17.2 +0.25T1+0.15(2L1+L2)-0.4(a1+3a2).The assessment result made by this Intelligent Expert System was close to the assessment results from experts.