手写签名过程中速度特征量的稳定性研究

Study on Velocity Stability During On-line Hand written Signature

手写签名鉴别属于人体生物特征鉴别领域的重要技术之一.根据汉字手写签名的特点,编程从手写板获取签名的动态数据,编写了提取手写签名多种速度特征值的程序,在统计的基础上,对手写签名过程中的瞬时速度、X轴向平均速度和Y轴向平均速度、最大速度出现的位置、极大速度首次出现的位置等特征量的稳定性进行了实验研究,得出了一些有用的结论.

On-line handwritten signature verification is one of the important technologies in human biometrics authentication fields. Based on characteristic of chinese handwritten signature, some programs are developed to acquire the dynamic handwritten signature data from WACOM Tablet and to calculate velocities from acquired dynamic data. Based on statistics theory, instantaneous velocity and average X velocity and average Y velocity and time when the first maximal velocity arriving during on-line handwritten signature are studied; and some useful conclusions about stability of velocity proper vector are drawn.