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In this work, we investigate improving the generalizability of GAN-generated image detectors by performing data augmentation in the fingerprint domain. Specifically, we first separate the fingerprints and contents of the GAN-generated…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Huaming Wang , Jianwei Fei , Yunshu Dai , Lingyun Leng , Zhihua Xia

Performance of fingerprint recognition algorithms substantially rely on fine features extracted from fingerprints. Apart from minutiae and ridge patterns, pore features have proven to be usable for fingerprint recognition. Although features…

Computer Vision and Pattern Recognition · Computer Science 2020-12-14 Syeda Nyma Ferdous , Ali Dabouei , Jeremy Dawson , Nasser M Nasrabadi

Image super-resolution is important in many fields, such as surveillance and remote sensing. However, infrared (IR) images normally have low resolution since the optical equipment is relatively expensive. Recently, deep learning methods…

Image and Video Processing · Electrical Eng. & Systems 2022-12-23 Yongsong Huang , Zetao Jiang , Qingzhong Wang , Qi Jiang , Guoming Pang

Recent advances in Generative Adversarial Networks (GANs) have led to the creation of realistic-looking digital images that pose a major challenge to their detection by humans or computers. GANs are used in a wide range of tasks, from…

Image and Video Processing · Electrical Eng. & Systems 2020-07-22 Michael Goebel , Lakshmanan Nataraj , Tejaswi Nanjundaswamy , Tajuddin Manhar Mohammed , Shivkumar Chandrasekaran , B. S. Manjunath

Training state-of-the-art (SOTA) deep learning models requires a large amount of data. The visual information present in the training data can be misused, which creates a huge privacy concern. One of the prominent solutions for this issue…

Computer Vision and Pattern Recognition · Computer Science 2024-07-10 Umesh Kashyap , Sudev Kumar Padhi , Sk. Subidh Ali

In recent years, image classification, as a core task in computer vision, relies on high-quality labelled data, which restricts the wide application of deep learning models in practical scenarios. To alleviate the problem of insufficient…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Jiyu Hu , Haijiang Zeng , Zhen Tian

Iris-based biometric systems are vulnerable to presentation attacks (PAs), where adversaries present physical artifacts (e.g., printed iris images, textured contact lenses) to defeat the system. This has led to the development of various…

Computer Vision and Pattern Recognition · Computer Science 2025-04-28 Debasmita Pal , Redwan Sony , Arun Ross

The use of accurate scanning transmission electron microscopy (STEM) image simulation methods require large computation times that can make their use infeasible for the simulation of many images. Other simulation methods based on linear…

Computer Vision and Pattern Recognition · Computer Science 2022-11-18 Nick Lawrence , Mingren Shen , Ruiqi Yin , Cloris Feng , Dane Morgan

Class imbalance occurs in many real-world applications, including image classification, where the number of images in each class differs significantly. With imbalanced data, the generative adversarial networks (GANs) leans to majority class…

Computer Vision and Pattern Recognition · Computer Science 2022-01-14 Yuchong Yao , Xiaohui Wangr , Yuanbang Ma , Han Fang , Jiaying Wei , Liyuan Chen , Ali Anaissi , Ali Braytee

Human activity recognition (HAR) is an important research field in ubiquitous computing where the acquisition of large-scale labeled sensor data is tedious, labor-intensive and time consuming. State-of-the-art unsupervised remedies…

Machine Learning · Computer Science 2021-10-13 Alireza Abedin , Hamid Rezatofighi , Damith C. Ranasinghe

Biometric based authentication is currently playing an essential role over conventional authentication system; however, the risk of presentation attacks subsequently rising. Our research aims at identifying the areas where presentation…

Computer Vision and Pattern Recognition · Computer Science 2022-07-04 Nyle Siddiqui , Rushit Dave

Deep neural networks (DNNs) have shown incredible promise in learning fixed-length representations from fingerprints. Since the representation learning is often focused on capturing specific prior knowledge (e.g., minutiae), there is no…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Akash Godbole , Karthik Nandakumar , Anil K. Jain

Prevailing fingerprint recognition systems are vulnerable to spoof attacks. To mitigate these attacks, automated spoof detectors are trained to distinguish a set of live or bona fide fingerprints from a set of known spoof fingerprints.…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Joshua J. Engelsma , Anil K. Jain

Wasserstein autoencoders are effective for text generation. They do not however provide any control over the style and topic of the generated sentences if the dataset has multiple classes and includes different topics. In this work, we…

Computation and Language · Computer Science 2019-11-12 Amirpasha Ghabussi , Lili Mou , Olga Vechtomova

Disentangled generative models map a latent code vector to a target space, while enforcing that a subset of the learned latent codes are interpretable and associated with distinct properties of the target distribution. Recent advances have…

Machine Learning · Computer Science 2020-08-10 Zinan Lin , Kiran Koshy Thekumparampil , Giulia Fanti , Sewoong Oh

Design of adversarial attacks for deep neural networks, as well as methods of adversarial training against them, are subject of intense research. In this paper, we propose methods to train against distributional attack threats, extending…

Machine Learning · Computer Science 2025-02-14 Xingjian Bai , Guangyi He , Yifan Jiang , Jan Obloj

State-of-the-art deep learning approaches for skin lesion recognition often require pretraining on larger and more varied datasets, to overcome the generalization limitations derived from the reduced size of the skin lesion imaging…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Kirill Sirotkin , Marcos Escudero-Viñolo , Pablo Carballeira , Juan Carlos SanMiguel

Recent advances in autoencoders and generative models have given rise to effective video forgery methods, used for generating so-called "deepfakes". Mitigation research is mostly focused on post-factum deepfake detection and not on…

Computer Vision and Pattern Recognition · Computer Science 2020-11-26 Eran Segalis , Eran Galili

Variational Autoencoders (VAEs) have been a pioneering force in the realm of deep generative models. Amongst its legions of progenies, Wasserstein Autoencoders (WAEs) stand out in particular due to the dual offering of heightened generative…

Machine Learning · Statistics 2023-12-12 Anish Chakrabarty , Arkaprabha Basu , Swagatam Das

Supervised deep learning algorithms have enabled significant performance gains in medical image classification tasks. But these methods rely on large labeled datasets that require resource-intensive expert annotation. Semi-supervised…