中文
相关论文

相关论文: Offline Signature Verification Based on Feature Di…

200 篇论文

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

This paper proposes a multi-section vector quantization approach for on-line signature recognition. We have used the MCYT database, which consists of 330 users and 25 skilled forgeries per person performed by 5 different impostors. This…

计算机视觉与模式识别 · 计算机科学 2022-03-24 Juan-Manuel Pascual-Gaspar , Marcos Faundez-Zanuy , Carlos Vivaracho

AI-powered generative models have significantly expanded the possibilities for editing, manipulating, and creating high-quality images. Particularly, images that falsely appear to originate from trusted sources pose a serious threat,…

密码学与安全 · 计算机科学 2026-04-28 Mathias Graf , Marco Willi , Melanie Mathys , Michael Aerni , Christian Schwarzer , Martin Melchior , Michael H. Graber

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…

计算机视觉与模式识别 · 计算机科学 2022-10-21 Fernando Alonso-Fernandez , Julian Fierrez-Aguilar , Francisco del-Valle , Javier Ortega-Garcia

Face verification is a well-known image analysis application and is widely used to recognize individuals in contemporary society. However, most real-world recognition systems ignore the importance of protecting the identity-sensitive facial…

计算机视觉与模式识别 · 计算机科学 2024-10-30 Huan-Chih Wang , Ja-Ling Wu

In this paper, we present a methodology for off-line handwritten character recognition. The proposed methodology relies on a new feature extraction technique based on structural characteristics, histograms and profiles. As novelty, we…

计算机视觉与模式识别 · 计算机科学 2018-02-15 José Manuel Casas , Nick Inassaridze , Manuel Ladra , Susana Ladra

Weakly-supervised anomaly detection aims at learning an anomaly detector from a limited amount of labeled data and abundant unlabeled data. Recent works build deep neural networks for anomaly detection by discriminatively mapping the normal…

机器学习 · 计算机科学 2021-08-29 Yingjie Zhou , Xucheng Song , Yanru Zhang , Fanxing Liu , Ce Zhu , Lingqiao Liu

Although deep learning are commonly employed for image recognition, usually huge amount of labeled training data is required, which may not always be readily available. This leads to a noticeable performance disparity when compared to…

计算机视觉与模式识别 · 计算机科学 2024-02-08 Enoch Solomon , Abraham Woubie , Eyael Solomon Emiru

Existing face forgery detection methods usually treat face forgery detection as a binary classification problem and adopt deep convolution neural networks to learn discriminative features. The ideal discriminative features should be only…

计算机视觉与模式识别 · 计算机科学 2022-07-11 Wanyi Zhuang , Qi Chu , Haojie Yuan , Changtao Miao , Bin Liu , Nenghai Yu

The rapid advancement of machine learning technologies raises questions about the security of machine learning models, with respect to both training-time (poisoning) and test-time (evasion, impersonation, and inversion) attacks. Models…

计算机视觉与模式识别 · 计算机科学 2025-03-21 Xinheng Xie , Kureha Yamaguchi , Margaux Leblanc , Simon Malzard , Varun Chhabra , Victoria Nockles , Yue Wu

Learning robust representations of authorial style is crucial for authorship attribution and AI-generated text detection. However, existing methods often struggle with content-style entanglement, where models learn spurious correlations…

计算与语言 · 计算机科学 2026-04-24 Hieu Man , Van-Cuong Pham , Nghia Trung Ngo , Franck Dernoncourt , Thien Huu Nguyen

In just three years, Variational Autoencoders (VAEs) have emerged as one of the most popular approaches to unsupervised learning of complicated distributions. VAEs are appealing because they are built on top of standard function…

机器学习 · 统计学 2021-01-05 Carl Doersch

For real-world applications of machine learning (ML), it is essential that models make predictions based on well-generalizing features rather than spurious correlations in the data. The identification of such spurious correlations, also…

机器学习 · 计算机科学 2023-07-24 Nicolas M. Müller , Simon Roschmann , Shahbaz Khan , Philip Sperl , Konstantin Böttinger

User authentication is a pivotal element in security systems. Conventional methods including passwords, personal identification numbers, and identification tags are increasingly vulnerable to cyber-attacks. This paper suggests a paradigm…

密码学与安全 · 计算机科学 2024-11-28 Naveenkumar G Venkataswamy , Masudul H Imtiaz

Authentication and attribution of works on paper remain persistent challenges in cultural heritage, particularly when the available reference corpus is small and stylistic cues are primarily expressed through line and limited tonal…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Hassan Ugail , Jan Ritch-Frel , Irina Matuzava

Variational Auto-Encoders have often been used for unsupervised pretraining, feature extraction and out-of-distribution and anomaly detection in the medical field. However, VAEs often lack the ability to produce sharp images and learn…

机器学习 · 计算机科学 2019-11-28 David Zimmerer , Jens Petersen , Klaus Maier-Hein

Variational autoencoders (VAEs) are fundamental for generative modeling and image reconstruction, yet their performance often struggles to maintain high fidelity in reconstructions. This study introduces a hybrid model, quantum variational…

计算机视觉与模式识别 · 计算机科学 2025-03-10 Farina Riaz , Fakhar Zaman , Hajime Suzuki , Sharif Abuadbba , David Nguyen

Although modern face verification systems are accessible and accurate, they are not always robust to pose variance and occlusions. Moreover, accurate models require a large amount of data to train. We structure our experiments to operate on…

计算机视觉与模式识别 · 计算机科学 2018-11-16 Kaushal Bhogale , Nishant Shankar , Adheesh Juvekar , Asutosh Padhi

In this paper, we tackle the challenge of white-box false positive adversarial attacks on contrastive loss based offline handwritten signature verification models. We propose a novel attack method that treats the attack as a style transfer…

计算机视觉与模式识别 · 计算机科学 2024-02-20 Zhongliang Guo , Weiye Li , Yifei Qian , Ognjen Arandjelović , Lei Fang

Authentication is a task aiming to confirm the truth between data instances and personal identities. Typical authentication applications include face recognition, person re-identification, authentication based on mobile devices and so on.…

机器学习 · 统计学 2019-05-29 Jian Liang , Yuren Cao , Chenbin Zhang , Shiyu Chang , Kun Bai , Zenglin Xu