Finally , characters are recognized by utilizing moments to recognize alphabetic character and structure information of numeric character to recognize number 讨论了字符识别技术，实现了利用图像矩特征进行字符识别以及利用数字的结构特征识别数字。
Automated face recognition is an important part of biometrics . it is one of the most active and challenging tasks for computer vision and pattern recognition 人脸自动识别技术是生物特征识别技术的重要组成部分，是计算机视觉与模式识别领域中非常活跃的课题。
First , the research and relative subject on engineering drawing interpretation and feature recognition and object composing is summarized . the way of work is put forward 首先，综述工程图样理解的相关内容、特征识别和形体合成等相关研究的进展，阐述本文的研究思路和工作。
In summary , there exists various voice print recognition techniques with different advantages and disadvantages , and the choice of voice print recognition method should be task - specific 声纹特征识别的方法多种多样，也各有优缺点，本文着重介绍rbf阵列神经网络在声纹特征识别中的特点。
The traditional personal authentication methods cannot keep up with the requirements of the society because of their inherent defects . under such circumstance , biometrics emerged as the time requires 传统的身份识别方法由于其自身固有的缺点已经不能满足社会发展的要求,生物特征识别技术应运而生。
On - line handwriting signature verification is a hot direction of the biometric identity recognition . this paper tries to apply the evolutionary computation theory to on - line handwriting verification 在线手写签名验证是目前生物特征识别领域较为热门的一个方向,论文试图将演化计算的思想,用于在线签名验证。
Thirdly , feature recognizing mothod based on feature model is researched according to the feature models of shaft and box part , and correlatve function module is carried out on caxa 3 、以轴类零件和箱体类零件的特征模型为对象,研究了基于特征模型的特征识别的方法,在caxa上开发了特征识别的相关功能模块。
According to the rules about orthographic projections , a method of 3d feature recognition is made , which recognizes 3dfeatures not only by 2d drawing elements but 3d solid 根据工程图的投影规则，制定出了基于二维工程图的三维立体特征识别的规则和过程，从体的角度，同时结合二维图元信息进行三维特征识别。
