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相关论文: Analyzing features learned for Offline Signature V…

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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

Automatic Offline Handwritten Signature Verification has been researched over the last few decades from several perspectives, using insights from graphology, computer vision, signal processing, among others. In spite of the advancements on…

计算机视觉与模式识别 · 计算机科学 2016-12-02 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

Methods for learning feature representations for Offline Handwritten Signature Verification have been successfully proposed in recent literature, using Deep Convolutional Neural Networks to learn representations from signature pixels. Such…

计算机视觉与模式识别 · 计算机科学 2018-04-25 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

Automated signature verification is a critical biometric technique used in banking, identity authentication, and legal documentation. Despite the notable progress achieved by deep learning methods, most approaches in offline signature…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Matheus Ramos Parracho

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

The area of Handwritten Signature Verification has been broadly researched in the last decades, but remains an open research problem. The objective of signature verification systems is to discriminate if a given signature is genuine…

计算机视觉与模式识别 · 计算机科学 2019-01-25 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

Signature is widely used in human daily lives, and serves as a supplementary characteristic for verifying human identity. However, there is rare work of verifying signature. In this paper, we propose a few deep learning architectures to…

计算机视觉与模式识别 · 计算机科学 2019-12-12 Zihan Zeng , Jing Tian

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

Although secular, handwritten signature is one of the most reliable biometric methods used by most countries. In the last ten years, the application of technology for verification of handwritten signatures has evolved strongly, including…

Offline Handwritten Signature verification presents a challenging Pattern Recognition problem, where only knowledge of the positive class is available for training. While classifiers have access to a few genuine signatures for training,…

计算机视觉与模式识别 · 计算机科学 2019-10-18 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

The area of Handwritten Signature Verification has been broadly researched in the last decades, but remains an open research problem. In offline (static) signature verification, the dynamic information of the signature writing process is…

计算机视觉与模式识别 · 计算机科学 2019-01-23 Sourya Dipta Das , Himanshu Ladia , Vaibhav Kumar , Shivansh Mishra

Sign language recognition is important for natural and convenient communication between deaf community and hearing majority. We take the highly efficient initial step of automatic fingerspelling recognition system using convolutional neural…

计算机视觉与模式识别 · 计算机科学 2015-10-15 Byeongkeun Kang , Subarna Tripathi , Truong Q. Nguyen

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…

计算机视觉与模式识别 · 计算机科学 2024-01-10 Paul Brimoh , Chollette C. Olisah

Biometric authentication by means of handwritten signatures is a challenging pattern recognition task, which aims to infer a writer model from only a handful of genuine signatures. In order to make it more difficult for a forger to attack…

计算机视觉与模式识别 · 计算机科学 2018-10-18 Paul Maergner , Vinaychandran Pondenkandath , Michele Alberti , Marcus Liwicki , Kaspar Riesen , Rolf Ingold , Andreas Fischer

The phenomenon of Adversarial Examples is attracting increasing interest from the Machine Learning community, due to its significant impact to the security of Machine Learning systems. Adversarial examples are similar (from a perceptual…

计算机视觉与模式识别 · 计算机科学 2019-01-25 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

Nowadays, deep learning can be employed to a wide ranges of fields including medicine, engineering, etc. In deep learning, Convolutional Neural Network (CNN) is extensively used in the pattern and sequence recognition, video analysis,…

计算机视觉与模式识别 · 计算机科学 2019-02-06 Rezoana Bente Arif , Md. Abu Bakr Siddique , Mohammad Mahmudur Rahman Khan , Mahjabin Rahman Oishe

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

Facial forgery by deepfakes has caused major security risks and raised severe societal concerns. As a countermeasure, a number of deepfake detection methods have been proposed. Most of them model deepfake detection as a binary…

计算机视觉与模式识别 · 计算机科学 2023-10-12 Aakash Varma Nadimpalli , Ajita Rattani

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…

计算机视觉与模式识别 · 计算机科学 2018-07-31 Victor L. F. Souza , Adriano L. I. Oliveira , Robert Sabourin

Inspired by the great success of recurrent neural networks (RNNs) in sequential modeling, we introduce a novel RNN system to improve the performance of online signature verification. The training objective is to directly minimize…

计算机视觉与模式识别 · 计算机科学 2017-05-22 Songxuan Lai , Lianwen Jin , Weixin Yang
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