触屏电子签名与纸笔签名的笔迹特征比较研究  

Comparison of Handwriting Characteristics of Signature Made on Electronic Touch Screen and/or Paper

作　　者：黄李彦[1] 詹康辉 周广存 HUANG Liyan;ZHAN Kanghui;ZHOU Guangcun(Fujian Police College,Fuzhou 350007,China;Longyan Public Security Bureau,Longyan 364000,Fujian,China;Shandong Provincial People’s Police Training Base(Jining),Jining 272000,Shandong,China)

机构地区：[1]福建警察学院,福州350007 [2]龙岩市公安局,福建龙岩364000 [3]山东省济宁人民警察训练基地,山东济宁272000

出　　处：《刑事技术》2020年第6期582-586,共5页Forensic Science and Technology

摘　　要：目的研究电磁式、电容式触屏电子签名的笔迹特征。方法邀请60名大学专科以上学历成年人,分别用碳素签字笔、主动式电容触控笔、电磁数位压感笔书写签名;比较电磁式、电容式触屏电子签名与纸笔签名的笔迹特征变化。结果相较于电容式签名,电磁式签名更接近纸笔签名,仅在书写水平、签名布局和笔痕特征出现明显变化;电容式签名则在书写水平、签名布局、字间搭配比例、行笔形态、起收笔、连笔、笔痕等特征都出现了变化。书写次数对电磁和电容式签名都有较大影响,不同视觉监督方式对电磁式签名有一定的影响。结论对触屏签名笔迹的特征分析应考虑到各类触屏电子签名的特征变化及相关成因,去伪存真,综合评断,以提高意见的准确性。Objective To research the handwriting characteristics of electronic signature on electromagnetic and/or capacitive touch screen.Methods Sixty adults,who had completed at least junior college education,were asked to sign respectively on A4 paper with black carbon signing fountain pen,on“Ipad mini 2”with active capacitor stylus,and on electromagnetic writing pad with electromagnetic digital pressure pen.Such obtained three kinds of signature were compared of their handwriting characteristics.Results When compared against the capacitive signature,the electromagnetic one is more similar to the one on paper with black carbon fountain pen,only having signifi cant variations in writing level,signature layout and characteristic writing marks.The capacitive signature reveals its remarkable deformations in writing level,signature layout,matching proportion of space between words,conformation of pen movement,start and end strokes of writing,written connections,and the characteristic writing marks.In addition,a great impact was discovered of the writing times on both the electromagnetic and ca pacitive signature,with the electromagnetic signature having also been affected from different visual distractions.Conclusions Touch-screen electronic signature shou ld be identifi ed through analyzing the characteristic changes and related causes of all kinds of such signature together with preserving the true from eliminating the false,thereby capable of a comprehensive evaluation to deliver the fi nal objective and scientifi c opinions.

关 键 词：文书检验 笔迹特征 纸笔签名 电磁式触屏电子签名 电容式触屏电子签名 

分 类 号：DF794.2[政治法律—诉讼法学]