Online handwritten signature verification based on association of curvature and torsion feature with Hausdorff distance

被引:26
|
作者
He, Lang [1 ]
Tan, Hua [1 ]
Huang, Zhang-Can [1 ]
机构
[1] Wuhan Univ Technol, Sch Sci, Wuhan 430070, Hubei, Peoples R China
关键词
Online signature verification; Extreme point; Curvature; Torsion; Hausdorff distance; WRITER DEPENDENT FEATURES; SYMBOLIC REPRESENTATION; DYNAMIC SIGNATURE; CLASSIFIER; SYSTEM; INFORMATION; COMPETITION;
D O I
10.1007/s11042-019-7264-6
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The paper presents an efficient on-line signature verification method based on the dynamic features of a given signature. In the proposed approach, curvature and torsion feature are associated with Hausdorff distance measure which can be used in the verification process. In the feature extraction step, the signature trajectory is approximated as a spatial curve. A set of curvature and torsion value of extreme point is computed from both x coordinate, y coordinate and pressure feature so that the dimension of the curve is reduced. Therefore, a new composed signature feature is created for each person. For the obtained feature data, the most distinctive Hausdorff distance is further proposed to calculate the distances of the eight-dimensional feature vector between the test signature and corresponding template signatures for the verification of the test sample. Comprehensive experiments are implemented on three publicly available databases: the SVC2004, SUSIG and MCYT-100 database. A comparison of our results with some recent signature verification methods available in the literature is provided with equal error rate, and the results indicate that the proposed method would better recognize genuine signatures, random and skilled forgeries.
引用
收藏
页码:19253 / 19278
页数:26
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