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On-line signature verification for Tablet PC devices is studied. The on-line signature verification algorithm presented by the authors at the First International Signature Verification Competition (SVC 2004) is adapted to work in Tablet PC…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Fernando Alonso-Fernandez , Julian Fierrez-Aguilar , Francisco del-Valle , Javier Ortega-Garcia

This paper present a novel off-line signature recognition method based on multi scale Fourier Descriptor and wavelet transform . The main steps of constructing a signature recognition system are discussed and experiments on real data sets…

Computer Vision and Pattern Recognition · Computer Science 2010-04-09 Ismail A. Ismail , Mohammed A. Ramadan , Talaat S. El danaf , Ahmed H. Samak

This paper introduces a novel approach to leverage the knowledge of existing expert models for training new Convolutional Neural Networks, on domains where task-specific data are limited or unavailable. The presented scheme is applied in…

Computer Vision and Pattern Recognition · Computer Science 2023-08-03 Dimitrios Tsourounis , Ilias Theodorakopoulos , Elias N. Zois , George Economou

Offline signature verification (OSV) is a frequently utilized technology in forensics. This paper proposes a new model, DetailSemNet, for OSV. Unlike previous methods that rely on holistic features for pair comparisons, our approach…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Meng-Cheng Shih , Tsai-Ling Huang , Yu-Heng Shih , Hong-Han Shuai , Hsuan-Tung Liu , Yi-Ren Yeh , Ching-Chun Huang

Verifying the identity of a person using handwritten signatures is challenging in the presence of skilled forgeries, where a forger has access to a person's signature and deliberately attempt to imitate it. In offline (static) signature…

Computer Vision and Pattern Recognition · Computer Science 2017-05-17 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

In this contribution, a Bayes Ying Yang(BYY) harmony based approach for on-line signature verification is presented. In the proposed method, a simple but effective Gaussian Mixture Models(GMMs) is used to represent for each user's signature…

Computer Vision and Pattern Recognition · Computer Science 2014-12-16 Xiaosha Zhao , Mandan Liu

Graphs provide a powerful representation formalism that offers great promise to benefit tasks like handwritten signature verification. While most state-of-the-art approaches to signature verification rely on fixed-size representations,…

Computer Vision and Pattern Recognition · Computer Science 2019-06-26 Paul Maergner , Nicholas R. Howe , Kaspar Riesen , Rolf Ingold , Andreas Fischer

In this paper, we propose a novel approach for verification of on-line signatures based on user dependent feature selection and symbolic representation. Unlike other signature verification methods, which work with same features for all…

Computer Vision and Pattern Recognition · Computer Science 2016-12-01 D. S. Guru , K. S. Manjunatha , S. Manjunath

Usually, in a real-world scenario, few signature samples are available to train an automatic signature verification system (ASVS). However, such systems do indeed need a lot of signatures to achieve an acceptable performance. Neuromotor…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Teruo M. Maruyama , Luiz S. Oliveira , Alceu S. Britto , Robert Sabourin

High-dimensional classification problems often rely on the Lasso-penalized linear Support Vector Machines (SVMs). However, the double non-smoothness induced by the hinge loss and Lasso penalty in this model makes statistical inference…

Methodology · Statistics 2026-05-18 Shuya Zhou , Junwen Xia , Jingxiao Zhang

A genuine signer's signature is naturally unstable even at short time-intervals whereas, expert forgers always try to perfectly mimic a genuine signer's signature. This presents a challenge which puts a genuine signer at risk of being…

Computer Vision and Pattern Recognition · Computer Science 2024-01-10 Paul Brimoh , Chollette C. Olisah

Offline Signature Verification (OSV) is a fundamental biometric task across various forensic, commercial and legal applications. The underlying task at hand is to carefully model fine-grained features of the signatures to distinguish…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Soumitri Chattopadhyay , Siladittya Manna , Saumik Bhattacharya , Umapada Pal

Offline Signature Verification (OSV) is a challenging pattern recognition task, especially in presence of skilled forgeries that are not available during training. This study aims to tackle its challenges and meet the substantial need for…

Computer Vision and Pattern Recognition · Computer Science 2019-08-09 Saeed Masoudnia , Omid Mersa , Babak N. Araabi , Abdol-Hossein Vahabie , Mohammad Amin Sadeghi , Majid Nili Ahmadabadi

In automatic signature verification, questioned specimens are usually compared with reference signatures. In writer-dependent schemes, a number of reference signatures are required to build up the individual signer model while a…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Moises Diaz , Miguel A. Ferrer , Soodamani Ramalingam , Richard Guest

Biometrics systems have been used in a wide range of applications and have improved people authentication. Signature verification is one of the most common biometric methods with techniques that employ various specifications of a signature.…

Computer Vision and Pattern Recognition · Computer Science 2016-11-15 Mohsen Fayyaz , Mohammad Hajizadeh_Saffar , Mohammad Sabokrou , Mahmood Fathy

Online signature verification (OSV) is one of the most challenging tasks in writer identification and digital forensics. Owing to the large intra-individual variability, there is a critical requirement to accurately learn the intra-personal…

Computer Vision and Pattern Recognition · Computer Science 2019-05-22 Chandra Sekhar , Prerana Mukherjee , Devanur S Guru , Viswanath Pulabaigari

This article presents SVC-onGoing, an on-going competition for on-line signature verification where researchers can easily benchmark their systems against the state of the art in an open common platform using large-scale public databases,…

Signature verification is an authentication technique that considers handwritten signature as a biometric. From a biometric perspective this project made use of automatic means through an integration of intelligent algorithms to perform…

Signal Processing · Electrical Eng. & Systems 2018-07-30 Rozita Teymourzadeh , Martin kizito , Kok Wai Chan , Mok Vee Hoong

The paper presents to address this challenge, we have proposed the use of Adaptive Window Positioning technique which focuses on not just the meaning of the handwritten signature but also on the individuality of the writer. This innovative…

Computer Vision and Pattern Recognition · Computer Science 2014-07-11 Ghazali Sulong , Anwar Yahy Ebrahim , Muhammad Jehanzeb

The use of features extracted using a deep convolutional neural network (CNN) combined with a writer-dependent (WD) SVM classifier resulted in significant improvement in performance of handwritten signature verification (HSV) when compared…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Victor L. F. Souza , Adriano L. I. Oliveira , Robert Sabourin