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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…

计算机视觉与模式识别 · 计算机科学 2022-06-28 Soumitri Chattopadhyay , Siladittya Manna , Saumik Bhattacharya , Umapada Pal

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…

计算机视觉与模式识别 · 计算机科学 2019-05-22 Chandra Sekhar , Prerana Mukherjee , Devanur S Guru , Viswanath Pulabaigari

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…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Meng-Cheng Shih , Tsai-Ling Huang , Yu-Heng Shih , Hong-Han Shuai , Hsuan-Tung Liu , Yi-Ren Yeh , Ching-Chun Huang

Offline Signature Verification (OSV) is a challenging pattern recognition task, especially when it is expected to generalize well on the skilled forgeries that are not available during the training. Its challenges also include small…

计算机视觉与模式识别 · 计算机科学 2019-08-09 Omid Mersa , Farhood Etaati , Saeed Masoudnia , Babak N. Araabi

Offline Signature Verification (OSV) remains a challenging pattern recognition task, especially in the presence of skilled forgeries that are not available during the training. This challenge is aggravated when there are small labeled…

计算机视觉与模式识别 · 计算机科学 2019-08-09 Taraneh Younesian , Saeed Masoudnia , Reshad Hosseini , Babak N. Araabi

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…

计算机视觉与模式识别 · 计算机科学 2017-05-17 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

Handwritten Signature Verification (HSV) systems distinguish between genuine and forged signatures. Traditional HSV development involves a static batch configuration, constraining the system's ability to model signatures to the limited data…

计算机视觉与模式识别 · 计算机科学 2024-11-12 Kecia G. de Moura , Rafael M. O. Cruz , Robert Sabourin

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…

计算机视觉与模式识别 · 计算机科学 2019-08-09 Saeed Masoudnia , Omid Mersa , Babak N. Araabi , Abdol-Hossein Vahabie , Mohammad Amin Sadeghi , Majid Nili Ahmadabadi

Online Signature Verification (OSV) is a widely used biometric attribute for user behavioral characteristic verification in digital forensics. In this manuscript, owing to large intra-individual variability, a novel method for OSV based on…

计算机视觉与模式识别 · 计算机科学 2019-05-22 Chandra Sekhar , Prerana Mukherjee , D. S. Guru , Viswanath Pulabaigari

This paper uses Support Vector Machines (SVM) to fuse multiple classifiers for an offline signature system. From the signature images, global and local features are extracted and the signatures are verified with the help of Gaussian…

计算机视觉与模式识别 · 计算机科学 2010-03-31 Dakshina Ranjan Kisku , Phalguni Gupta , Jamuna Kanta Sing

This paper presents an accurate method for verifying online signatures. The main difficulty of signature verification come from: (1) Lacking enough training samples (2) The methods must be spatial change invariant. To deal with these…

计算机视觉与模式识别 · 计算机科学 2018-06-27 Mohammad Hajizadeh Saffar , Mohsen Fayyaz , Mohammad Sabokrou , Mahmood Fathy

Handwritten signature verification poses a formidable challenge in biometrics and document authenticity. The objective is to ascertain the authenticity of a provided handwritten signature, distinguishing between genuine and forged ones.…

计算机视觉与模式识别 · 计算机科学 2024-01-19 Fatih Ozyurt , Jafar Majidpour , Tarik A. Rashid , Canan Koc

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…

计算机视觉与模式识别 · 计算机科学 2023-08-03 Dimitrios Tsourounis , Ilias Theodorakopoulos , Elias N. Zois , George Economou

Offline handwritten signature verification systems are used to verify the identity of individuals, through recognizing their handwritten signature image as genuine signatures or forgeries. The main tasks of signature verification systems…

计算机视觉与模式识别 · 计算机科学 2024-10-01 Hansong Zhang , Jiangjian Guo , Kun Li , Yang Zhang , Yimei Zhao

Research on Offline Handwritten Signature Verification explored a large variety of handcrafted feature extractors, ranging from graphology, texture descriptors to interest points. In spite of advancements in the last decades, performance of…

计算机视觉与模式识别 · 计算机科学 2017-05-17 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

The augmented usage of deep learning-based models for various AI related problems are as a result of modern architectures of deeper length and the availability of voluminous interpreted datasets. The models based on these architectures…

计算机视觉与模式识别 · 计算机科学 2019-07-10 Chandra Sekhar V. , Anoushka Doctor , Prerana Mukherjee , Viswanath Pulabaigiri

This study investigates the vulnerabilities of data-driven offline signature verification (DASV) systems to generative attacks and proposes robust countermeasures. Specifically, we explore the efficacy of Variational Autoencoders (VAEs) and…

计算机视觉与模式识别 · 计算机科学 2024-07-19 An Ngo , Rajesh Kumar , Phuong Cao

We introduce an end-to-end deep-learning framework for 3D medical image registration. In contrast to existing approaches, our framework combines two registration methods: an affine registration and a vector momentum-parameterized stationary…

计算机视觉与模式识别 · 计算机科学 2019-03-22 Zhengyang Shen , Xu Han , Zhenlin Xu , Marc Niethammer

Offline signature verification is one of the most challenging tasks in biometrics and document forensics. Unlike other verification problems, it needs to model minute but critical details between genuine and forged signatures, because a…

计算机视觉与模式识别 · 计算机科学 2017-10-03 Sounak Dey , Anjan Dutta , J. Ignacio Toledo , Suman K. Ghosh , Josep Llados , Umapada Pal

Video object segmentation aims at accurately segmenting the target object regions across consecutive frames. It is technically challenging for coping with complicated factors (e.g., shape deformations, occlusion and out of the lens). Recent…

计算机视觉与模式识别 · 计算机科学 2019-07-03 Peng Sun , Peiwen Lin , Guangliang Cheng , Jianping Shi , Jiawan Zhang , Xi Li
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