OnLine Signature Verification Based on Shape and Writing Forces
FANG Ping1,2, MENG Ming1,2, WU ZhongCheng1, GE YunJian1, YU Yong1
1.Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei 230031 2.Department of Automation, University of Science and Technology of China, Hefei 230026
Abstract：To solve the problem that the present signature collecting devices are not able to get the writing forces and signature shape simultaneously or only get the writing pressure, a selfdevised F_Tablet writing tablet is used to collect the twodimension signature shape and threedimension forces during writing. And a novel technique using stroke segmentation, multitemplate and iterative experiment puts forward to verify the signatures with signature shape and writing forces. The validity of this technique is proved by the experimental results based on the signature database constructed with F_Tablet.
[1] Crane H D, Ostrem J S. Automatic Signature Verification Using a Three-Axis Force-Sensitive Pen. IEEE Trans on Systems, Man, and Cybernetics, 1983, 13(3): 329-337 [2] Wirtz B. Stroke-Based Time Warping for Signature Verification. In: Proc of the 3rd International Conference on Document Analysis and Recognition. Montreal, Canada, 1995, Ⅰ: 179-182 [3] Lee L L, Berger T, Aviczer E. Reliable Online Human Signature Verification Systems. IEEE Trans on Pattern Analysis and Machine Intelligence, 1996, 18(6): 643-647 [4] Martens R, Claesen L J M. Incorporating Local Consistency Information into the Online Signature Verification Process. International Journal on Document Analysis and Recognition, 1998, 1(2): 110-115 [5] Li S C, Ding X Q, Chen Y. Online Signature Verification Based on Weighted Dynamic Programming Matching. Journal of Tsinghua University (Science & Technology), 1999, 39(9): 61-64 (in Chinese) (李胜春, 丁晓青, 陈 彦. 基于加权动态匹配方法的联机签名鉴别. 清华大学学报(自然科学版), 1999, 39(9): 61-64) [6] Morita H, Sakamoto D, Ohishi T, et al. Online Signature Verifier Incorporating Pen Position, Pen Pressure, and Pen Inclination Trajectories. In: Proc of the 3rd International Conference on Audio-and Video-Based Biometric Person Authentication. London, UK: Springer-Verlag, 2001, 318-323 [7] Fang P, Wu Z C, Meng M, et al. A Novel Tablet for Online Handwriting Signal Capture. In: Proc of the 5th World Congress on Intelligent Control and Automation. Hangzhou, China, 2004, Ⅵ: 3714-3717. [8] Yi J, Lee C, Kim J. Online Signature Verification Using Temporal Shift Estimated by the Phase of Gabor Filter. IEEE Trans on Signal Processing, 2005, 53(2): 776-783
2006, Vol. 19 
