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Presentation attack is a challenging issue that persists in the security of automatic fingerprint recognition systems. This paper proposes a novel explainable residual slim network that detects the presentation attack by representing the…

Computer Vision and Pattern Recognition · Computer Science 2023-06-08 Anuj Rai , Somnath Dey

Periocular recognition has gained attention recently due to demands of increased robustness of face or iris in less controlled scenarios. We present a new system for eye detection based on complex symmetry filters, which has the advantage…

Computer Vision and Pattern Recognition · Computer Science 2022-11-11 Fernando Alonso-Fernandez , Josef Bigun

This paper presents novel hybrid architectures that combine grid- and point-based processing to improve the detection performance and orientation estimation of radar-based object detection networks. Purely grid-based detection models…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Michael Ulrich , Sascha Braun , Daniel Köhler , Daniel Niederlöhner , Florian Faion , Claudius Gläser , Holger Blume

The recent rapid development of deep learning has laid a milestone in industrial Image Anomaly Detection (IAD). In this paper, we provide a comprehensive review of deep learning-based image anomaly detection techniques, from the…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Jiaqi Liu , Guoyang Xie , Jinbao Wang , Shangnian Li , Chengjie Wang , Feng Zheng , Yaochu Jin

Current progress in out-of-distribution (OOD) detection is limited by the lack of large, high-quality datasets with clearly defined OOD categories across varying difficulty levels (near- to far-OOD) that support both fine- and…

Computer Vision and Pattern Recognition · Computer Science 2026-01-19 Gerhard Krumpl , Henning Avenhaus , Horst Possegger

This study evaluates a smartphone-based, deep-learning eye-tracking algorithm by comparing its performance against a commercial infrared-based eye tracker, the Tobii Pro Nano. The aim is to investigate the feasibility of appearance-based…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Nishan Gunawardena , Gough Yumu Lui , Bahman Javadi , Jeewani Anupama Ginige

Iris recognition systems transform an iris image into a feature vector. The seminal pipeline segments an image into iris and non-iris pixels, normalizes this region into a fixed-dimension rectangle, and extracts features which are stored…

Computer Vision and Pattern Recognition · Computer Science 2021-04-14 Sohaib Ahmad , Christopher Geiger , Benjamin Fuller

Robust object detection for challenging scenarios increasingly relies on event cameras, yet existing Event-RGB datasets remain constrained by sparse coverage of extreme conditions and low spatial resolution (<= 640 x 480), which prevents…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Luoping Cui , Hanqing Liu , Mingjie Liu , Endian Lin , Donghong Jiang , Yuhao Wang , Chuang Zhu

We study the problem of fingerprint presentation attack detection (PAD) under unknown PA materials not seen during PAD training. A dataset of 5,743 bonafide and 4,912 PA images of 12 different materials is used to evaluate a…

Computer Vision and Pattern Recognition · Computer Science 2019-01-01 Tarang Chugh , Anil K. Jain

The Computer Vision Research Lab at the University of Notre Dame began collecting iris images in the spring semester of 2004. The initial data collections used an LG 2200 iris imaging system for image acquisition. Image datasets acquired in…

Computer Vision and Pattern Recognition · Computer Science 2016-06-16 Kevin W. Bowyer , Patrick J. Flynn

Face recognition (FR) algorithms have been proven to exhibit discriminatory behaviors against certain demographic and non-demographic groups, raising ethical and legal concerns regarding their deployment in real-world scenarios. Despite the…

Computer Vision and Pattern Recognition · Computer Science 2023-10-20 Meiling Fang , Wufei Yang , Arjan Kuijper , Vitomir Struc , Naser Damer

Cervical adenocarcinoma in situ (AIS) is a critical premalignant lesion whose accurate histopathological diagnosis is challenging. Early detection is essential to prevent progression to invasive cervical adenocarcinoma. In this study, we…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Gabriela Fernandes

This paper offers three new, open-source, deep learning-based iris segmentation methods, and the methodology how to use irregular segmentation masks in a conventional Gabor-wavelet-based iris recognition. To train and validate the methods,…

Computer Vision and Pattern Recognition · Computer Science 2019-01-07 Daniel Kerrigan , Mateusz Trokielewicz , Adam Czajka , Kevin Bowyer

Ground-glass opacity is a hallmark of numerous lung diseases, including patients with COVID19 and pneumonia, pulmonary fibrosis, and tuberculosis. This brief note presents experimental results of a proof-of-concept framework that got…

Image and Video Processing · Electrical Eng. & Systems 2023-04-03 Lisa Y. W. Tang

This paper proposes the first known to us iris recognition methodology designed specifically for post-mortem samples. We propose to use deep learning-based iris segmentation models to extract highly irregular iris texture areas in…

Computer Vision and Pattern Recognition · Computer Science 2019-10-09 Mateusz Trokielewicz , Adam Czajka , Piotr Maciejewicz

This paper advances the state of the art in human examination of iris images by (1) assessing the impact of different iris conditions in identity verification, and (2) introducing an annotation step that improves the accuracy of people's…

Computer Vision and Pattern Recognition · Computer Science 2018-11-21 Daniel Moreira , Mateusz Trokielewicz , Adam Czajka , Kevin W. Bowyer , Patrick J. Flynn

The use of low-resolution images adopting more relaxed acquisition conditions such as mobile phones and surveillance videos is becoming increasingly common in iris recognition nowadays. Concurrently, a great variety of single image…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Eduardo Ribeiro , Andreas Uhl , Fernando Alonso-Fernandez

This is a short technical report introducing the solution of Team Rat for Short-video Parsing Face Parsing Track of The 3rd Person in Context (PIC) Workshop and Challenge at CVPR 2021. In this report, we propose an Edge-Aware Network…

Computer Vision and Pattern Recognition · Computer Science 2021-07-15 Xiao Liu , Xiaofei Si , Jiangtao Xie

This research introduces a robust detection system against malicious network traffic, leveraging hierarchical structures and self-attention mechanisms. The proposed system includes a Packet Segmenter that divides a given raw network packet…

Cryptography and Security · Computer Science 2025-01-14 Anass Grini , Btissam El Khamlichi , Abdellatif El Afia , Amal El Fallah-Seghrouchni

Smartphone-based iris recognition in the visible spectrum (VIS) offers a low-cost and accessible biometric alternative but remains a challenge due to lighting variability, pigmentation effects, and the limited adoption of standardized…

Image and Video Processing · Electrical Eng. & Systems 2025-12-18 Naveenkumar G. Venkataswamy , Yu Liu , Soumyabrata Dey , Stephanie Schuckers , Masudul H. Imtiaz
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