Online Handwritten Signature Verification and Recognition Based on Dual‑Tree Complex Wavelet Packet Transform
Publish place: Journal of medical signals and sensors، Vol: 10، Issue: 3
Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_JMSI-10-3_002
تاریخ نمایه سازی: 28 تیر 1402
Abstract:
Background: With the increasing advancement of technology, it is necessary to develop more
accurate, convenient, and cost‑effective security systems. Handwriting signature, as one of the
most popular and applicable biometrics, is widely used to register ownership in banking systems,
including checks, as well as in administrative and financial applications in everyday life, all over
the world. Automatic signature verification and recognition systems, especially in the case of online
signatures, are potentially the most powerful and publicly accepted means for personal authentication.
Methods: In this article, a novel procedure for online signature verification and recognition has been
presented based on Dual‑Tree Complex Wavelet Packet Transform (DT‑CWPT). Results: In the
presented method, three‑level decomposition of DT‑CWPT has been computed for three time signals
of dynamic information including horizontal and vertical positions in addition to the pressure signal.
Then, in order to make feature vector corresponding to each signature, log energy entropy measures
have been computed for each subband of DT‑CWPT decomposition. Finally, to classify the query
signature, three classifiers including k‑nearest neighbor, support vector machine, and Kolmogorov–
Smirnov test have been examined. Experiments have been conducted using three benchmark datasets:
SVC۲۰۰۴, MCYT‑۱۰۰, as two Latin online signature datasets, and NDSD as a Persian signature
dataset. Conclusion: Obtained favorable experimental results, in comparison with literature, confirm
the effectiveness of the presented method in both online signature verification and recognition objects.
Keywords:
Dual‑tree complex wavelet packet transform , Kolmogorov–Smirnov test , log energy entropy measure , online handwritten signature verification , signature recognition
Authors
Atefeh Foroozandeh
Department of Applied Mathematics, Faculty of Sciences and Modern Technology, Graduate University of Advanced Technology
Ataollah Askari Hemmat
Department of Applied Mathematics, Faculty of Mathematics and Computer, Shahid Bahonar University of Kerman- Mahani Mathematical Research Center, Shahid Bahonar University of Kerman, Kerman
Hossein Rabbani
Department of Biomedical Engineering, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences- Medical Image and Signal Processing Research Center, Isfahan University of Medical Sciences, Isfahan, Iran