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Facial recognition systems in real-world scenarios are susceptible to both digital and physical attacks. Previous methods have attempted to achieve classification by learning a comprehensive feature space. However, these methods have not…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Shunxin Chen , Ajian Liu , Junze Zheng , Jun Wan , Kailai Peng , Sergio Escalera , Zhen Lei

Jamming devices pose a significant threat by disrupting signals from the global navigation satellite system (GNSS), compromising the robustness of accurate positioning. Detecting anomalies in frequency snapshots is crucial to counteract…

Signal Processing · Electrical Eng. & Systems 2024-10-08 Felix Ott , Lucas Heublein , Nisha Lakshmana Raichur , Tobias Feigl , Jonathan Hansen , Alexander Rügamer , Christopher Mutschler

Due to its convenience, biometric authentication, especial face authentication, has become increasingly mainstream and thus is now a prime target for attackers. Presentation attacks and face morphing are typical types of attack. Previous…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Huy H. Nguyen , Junichi Yamagishi , Isao Echizen , Sébastien Marcel

We have witnessed rapid advances in both face presentation attack models and presentation attack detection (PAD) in recent years. Compared to widely studied 2D face presentation attacks (e.g. printed photos and video replays), 3D face…

Computer Vision and Pattern Recognition · Computer Science 2019-10-15 Shan Jia , Xin Li , Chuanbo Hu , Zhengquan Xu

Remote sensing object detection is particularly challenging due to the high resolution, multi-scale features, and diverse ground object characteristics inherent in satellite and UAV imagery. These challenges necessitate more advanced…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Hui Lin , Nan Li , Pengjuan Yao , Kexin Dong , Yuhan Guo , Danfeng Hong , Ying Zhang , Congcong Wen

Deep learning-based fault diagnosis (FD) approaches require a large amount of training data, which are difficult to obtain since they are located across different entities. Federated learning (FL) enables multiple clients to collaboratively…

Machine Learning · Computer Science 2023-10-16 Jixuan Cui , Jun Li , Zhen Mei , Kang Wei , Sha Wei , Ming Ding , Wen Chen , Song Guo

Few-shot segmentation (FSS) aims to segment unseen classes given only a few annotated samples. Existing methods suffer the problem of feature undermining, i.e. potential novel classes are treated as background during training phase. Our…

Computer Vision and Pattern Recognition · Computer Science 2021-09-28 Lihe Yang , Wei Zhuo , Lei Qi , Yinghuan Shi , Yang Gao

One of the most challenging problems in fingerprint recognition continues to be establishing the identity of a suspect associated with partial and smudgy fingerprints left at a crime scene (i.e., latent prints or fingermarks). Despite the…

Computer Vision and Pattern Recognition · Computer Science 2023-09-11 Steven A. Grosz , Anil K. Jain

The quality and realism of synthetically generated fingerprint images have increased significantly over the past decade fueled by advancements in generative artificial intelligence (GenAI). This has exacerbated the vulnerability of…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Joseph Geo Benjamin , Anil K. Jain , Karthik Nandakumar

Although face recognition systems have seen a massive performance enhancement in recent years, they are still targeted by threats such as presentation attacks, leading to the need for generalizable presentation attack detection (PAD)…

Computer Vision and Pattern Recognition · Computer Science 2025-01-07 Guray Ozgur , Eduarda Caldeira , Tahar Chettaoui , Fadi Boutros , Raghavendra Ramachandra , Naser Damer

Fingerprint presentation attack detection is becoming an increasingly challenging problem due to the continuous advancement of attack preparation techniques, which generate realistic-looking fake fingerprint presentations. In this work,…

Computer Vision and Pattern Recognition · Computer Science 2020-06-22 Leonidas Spinoulas , Hengameh Mirzaalian , Mohamed Hussein , Wael AbdAlmageed

We study multi-modal few-shot object detection (FSOD) in this paper, using both few-shot visual examples and class semantic information for detection, which are complementary to each other by definition. Most of the previous works on…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Guangxing Han , Long Chen , Jiawei Ma , Shiyuan Huang , Rama Chellappa , Shih-Fu Chang

Face morphing attacks pose a severe security threat to face recognition systems, enabling the morphed face image to be verified against multiple identities. To detect such manipulated images, the development of new face morphing methods…

Computer Vision and Pattern Recognition · Computer Science 2024-10-11 Marcel Grimmer , Christoph Busch

Face recognition is a mainstream biometric authentication method. However, vulnerability to presentation attacks (a.k.a spoofing) limits its usability in unsupervised applications. Even though there are many methods available for tackling…

Computer Vision and Pattern Recognition · Computer Science 2019-09-20 Anjith George , Zohreh Mostaani , David Geissenbuhler , Olegs Nikisins , Andre Anjos , Sebastien Marcel

Despite excellent progress has been made, the performance of deep learning based algorithms still heavily rely on specific datasets, which are difficult to extend due to labor-intensive labeling. Moreover, because of the advancement of new…

Computer Vision and Pattern Recognition · Computer Science 2021-04-20 Zhen Wei , Bingkun Liu , Weinong Wang , Yu-Wing Tai

Nowadays, the adoption of face recognition for biometric authentication systems is usual, mainly because this is one of the most accessible biometric modalities. Techniques that rely on trespassing these kind of systems by using a forged…

Computer Vision and Pattern Recognition · Computer Science 2019-02-11 Rodrigo Bresan , Allan Pinto , Anderson Rocha , Carlos Beluzo , Tiago Carvalho

Recent advancements in deep learning have revolutionized technology and security measures, necessitating robust identification methods. Biometric approaches, leveraging personalized characteristics, offer a promising solution. However, Face…

Computer Vision and Pattern Recognition · Computer Science 2024-02-23 Iurii Medvedev , Nuno Gonçalves

Few-shot learning is valuable in many real-world applications, but learning a generalizable model without overfitting to the few labeled datapoints is challenging. In this work, we focus on Few-shot Learning with Auxiliary Data (FLAD), a…

Machine Learning · Computer Science 2023-10-04 Alon Albalak , Colin Raffel , William Yang Wang

Existing approaches towards anomaly detection~(AD) often rely on a substantial amount of anomaly-free data to train representation and density models. However, large anomaly-free datasets may not always be available before the inference…

Computer Vision and Pattern Recognition · Computer Science 2024-03-01 Jingyi Liao , Xun Xu , Manh Cuong Nguyen , Adam Goodge , Chuan Sheng Foo

Few-Shot Object Detection (FSOD) is a rapidly growing field in computer vision. It consists in finding all occurrences of a given set of classes with only a few annotated examples for each class. Numerous methods have been proposed to…

Computer Vision and Pattern Recognition · Computer Science 2022-01-07 Pierre Le Jeune , Anissa Mokraoui
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