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In machine learning applications, it is common practice to feed as much information as possible. In most cases, the model can handle large data sets that allow to predict more accurately. In the presence of data scarcity, a Few-Shot…

Computer Vision and Pattern Recognition · Computer Science 2023-05-04 Saad Bin Ahmed , Umaid M. Zaffar , Marium Aslam , Muhammad Imran Malik

Nowadays, face recognition systems surpass human performance on several datasets. However, there are still edge cases that the machine can't correctly classify. This paper investigates the effect of a combination of machine and human…

Computer Vision and Pattern Recognition · Computer Science 2023-08-25 Martin Knoche , Gerhard Rigoll

Fake images in selfie banking are increasingly becoming a threat. Previously, it was just Photoshop, but now deep learning technologies enable us to create highly realistic fake identities, which fraudsters exploit to bypass biometric…

Cryptography and Security · Computer Science 2025-08-28 Subhrojyoti Mukherjee , Manoranjan Mohanty

We utilize the dynamics involved in the imaging of a fingerprint on a touch-based fingerprint reader, such as perspiration, changes in skin color (blanching), and skin distortion, to differentiate real fingers from spoof (fake) fingers.…

Computer Vision and Pattern Recognition · Computer Science 2019-12-19 Tarang Chugh , Anil K. Jain

The rapid progress of generative adversarial networks (GANs) and diffusion models has enabled the creation of synthetic faces that are increasingly difficult to distinguish from real images. This progress, however, has also amplified the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-01 Kyeonghun Kim , Youngung Han , Seoyoung Ju , Yeonju Jean , YooHyun Kim , Minseo Choi , SuYeon Lim , Kyungtae Park , Seungwoo Baek , Sieun Hyeon , Nam-Joon Kim , Hyuk-Jae Lee

Deepfake detectors are typically trained on large sets of pristine and generated images, resulting in limited generalization capacity; they excel at identifying deepfakes created through methods encountered during training but struggle with…

Computer Vision and Pattern Recognition · Computer Science 2024-03-21 Davide Alessandro Coccomini , Roberto Caldelli , Claudio Gennaro , Giuseppe Fiameni , Giuseppe Amato , Fabrizio Falchi

Biometric authentication has garnered significant attention as a secure and efficient method of identity verification. Among the various modalities, hand vein biometrics, including finger vein, palm vein, and dorsal hand vein recognition,…

Image and Video Processing · Electrical Eng. & Systems 2024-09-12 Mustapha Hemis , Hamza Kheddar , Sami Bourouis , Nasir Saleem

Following the recent initiatives for the democratization of AI, deep fake generators have become increasingly popular and accessible, causing dystopian scenarios towards social erosion of trust. A particular domain, such as biological…

Computer Vision and Pattern Recognition · Computer Science 2021-05-21 Ilke Demir , Umur A. Ciftci

Since the introduction of the GDPR and CCPA legislation, both public and private facial image datasets are increasingly scrutinized. Several datasets have been taken offline completely and some have been anonymized. However, it is unclear…

Computer Vision and Pattern Recognition · Computer Science 2021-04-26 Sander R. Klomp , Matthew van Rijn , Rob G. J. Wijnhoven , Cees G. M. Snoek , Peter H. N. de With

The recent progress in generative models has revolutionized the synthesis of highly realistic images, including face images. This technological development has undoubtedly helped face recognition, such as training data augmentation for…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Yuguang Yao , Steven Grosz , Sijia Liu , Anil Jain

The growing reliance on artificial intelligence in safety- and security-critical applications is raising concerns about the robustness of neural networks to erroneous or adversarial input. Certification is a methodology for ensuring model…

Machine Learning · Computer Science 2026-05-01 Anton Björklund , Mykola Zaitsev , Paolo Morettin , Marta Kwiatkowska

In recent years, image manipulation is becoming increasingly more accessible, yielding more natural-looking images, owing to the modern tools in image processing and computer vision techniques. The task of the identification of forged…

Computer Vision and Pattern Recognition · Computer Science 2020-02-04 Akash Kumar , Arnav Bhavasar

One of the open issues in fingerprint verification is the lack of robustness against image-quality degradation. Poor-quality images result in spurious and missing features, thus degrading the performance of the overall system. Therefore, it…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Fernando Alonso-Fernandez , Julian Fierrez , Javier Ortega-Garcia , Joaquin Gonzalez-Rodriguez , Hartwig Fronthaler , Klaus Kollreider , Josef Bigun

Writer independent offline signature verification is one of the most challenging tasks in pattern recognition as there is often a scarcity of training data. To handle such data scarcity problem, in this paper, we propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2022-07-13 Siladittya Manna , Soumitri Chattopadhyay , Saumik Bhattacharya , Umapada Pal

Machine learning has opened up new tools for financial fraud detection. Using a sample of annotated transactions, a machine learning classification algorithm learns to detect frauds. With growing credit card transaction volumes and rising…

Machine Learning · Computer Science 2022-08-26 Gayan K. Kulatilleke

The rapid evolution of deep generative models poses a critical challenge to deepfake detection, as detectors trained on forgery-specific artifacts often suffer significant performance degradation when encountering unseen forgeries. While…

Computer Vision and Pattern Recognition · Computer Science 2025-04-25 Mengyu Qiao , Runze Tian , Yang Wang

Notwithstanding offering convenience and entertainment to society, Deepfake face swapping has caused critical privacy issues with the rapid development of deep generative models. Due to imperceptible artifacts in high-quality synthetic…

Computer Vision and Pattern Recognition · Computer Science 2025-11-05 Tianyi Wang , Mengxiao Huang , Harry Cheng , Bin Ma , Yinglong Wang

Credit card has become popular mode of payment for both online and offline purchase, which leads to increasing daily fraud transactions. An Efficient fraud detection methodology is therefore essential to maintain the reliability of the…

Machine Learning · Computer Science 2019-04-25 Xuetong Niu , Li Wang , Xulei Yang

SigNet is a state of the art model for feature representation used for handwritten signature verification (HSV). This representation is based on a Deep Convolutional Neural Network (DCNN) and contains 2048 dimensions. When transposed to a…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Victor L. F. Souza , Adriano L. I. Oliveira , Rafael M. O. Cruz , Robert Sabourin

With the rising prevalence of deepfakes, there is a growing interest in developing generalizable detection methods for various types of deepfakes. While effective in their specific modalities, traditional detection methods fall short in…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 Cai Yu , Shan Jia , Xiaomeng Fu , Jin Liu , Jiahe Tian , Jiao Dai , Xi Wang , Siwei Lyu , Jizhong Han