改善手写签名动态特征稳定性的局部相关分析  

An Analysis on the Local Relativity for Improving the Stability of the Dynamic Features in Handwriting Signature

作　　者：金涌[1] 柳健[1] 姜向东[2] 

机构地区：[1]华中理工大学图像识别与人工智能研究所 [2]华中理工大学计算机科学与技术学院

出　　处：《华中理工大学学报》1998年第12期71-73,共3页Journal of Huazhong University of Science and Technology

基　　金：国防预研科技基金

摘　　要：提出了基于模糊隶属稳定度的改进的局部相关分析方法．将手写签名特征序列划分成若干等分段，并在相关系数的计算中加入由各段特征稳定度确定的权重，改善了手写签名过程中稳定度不同导致相关系数不稳定的问题．对于判识阈值的确定给出了一个基于参数估计的解析法．Local relativity analysis method is presented based on a fuzzy subjection of stability. A sequence of the feature of handwriting signature is equally divided into segments, and weight factors decided by stability degrees of each segment are considered in the correlation coefficients computing. This method improved the stability of the correlation coefficients showing different stability during autographing. A threshold decision method was given as well.

关 键 词：手写签名 相关分析 身份认证 动态特征 稳定性 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]