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The numbers of persons who can be enrolled by their iris patterns with no identity collisions is studied in relation to the biometric entropy extracted, and the decision operating threshold. The population size at which identity collision…

Cryptography and Security · Computer Science 2023-08-08 John Daugman

This research proposes a method to detect alcohol consumption from Near-Infra-Red (NIR) periocular eye images. The study focuses on determining the effect of external factors such as alcohol on the Central Nervous System (CNS). The goal is…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Juan Tapia , Enrique Lopez Droguett , Christoph Busch

We propose a new iris presentation attack detection method using three-dimensional features of an observed iris region estimated by photometric stereo. Our implementation uses a pair of iris images acquired by a common commercial iris…

Computer Vision and Pattern Recognition · Computer Science 2018-11-20 Adam Czajka , Zhaoyuan Fang , Kevin W. Bowyer

In many visual systems, visual tracking often bases on RGB image sequences, in which some targets are invalid in low-light conditions, and tracking performance is thus affected significantly. Introducing other modalities such as depth and…

Computer Vision and Pattern Recognition · Computer Science 2021-11-12 Chenglong Li , Tianhao Zhu , Lei Liu , Xiaonan Si , Zilin Fan , Sulan Zhai

We demonstrate a novel deep neural network capable of reconstructing human full body pose in real-time from 6 Inertial Measurement Units (IMUs) worn on the user's body. In doing so, we address several difficult challenges. First, the…

Graphics · Computer Science 2018-10-12 Yinghao Huang , Manuel Kaufmann , Emre Aksan , Michael J. Black , Otmar Hilliges , Gerard Pons-Moll

Soft biometric modalities have shown their utility in different applications including reducing the search space significantly. This leads to improved recognition performance, reduced computation time, and faster processing of test samples.…

Computer Vision and Pattern Recognition · Computer Science 2017-10-10 Maneet Singh , Shruti Nagpal , Mayank Vatsa , Richa Singh , Afzel Noore , Angshul Majumdar

Magnetic resonance imaging (MRI) is a crucial tool to identify brain abnormalities in a wide range of neurological disorders. In focal epilepsy MRI is used to identify structural cerebral abnormalities. For covert lesions, machine learning…

Biometric presentation attack detection is gaining increasing attention. Users of mobile devices find it more convenient to unlock their smart applications with finger, face or iris recognition instead of passwords. In this paper, we survey…

Computer Vision and Pattern Recognition · Computer Science 2020-05-04 Yomna Safaa El-Din , Mohamed N. Moustafa , Hani Mahdi

Person re-identification (re-ID) aims to accurately re- trieve a person from a large-scale database of images cap- tured across multiple cameras. Existing works learn deep representations using a large training subset of unique per- sons.…

Computer Vision and Pattern Recognition · Computer Science 2018-03-29 Jubin Johnson , Shunsuke Yasugi , Yoichi Sugino , Sugiri Pranata , Shengmei Shen

Face liveness detection has become a widely used technique with a growing importance in various authentication scenarios to withstand spoofing attacks. Existing methods that perform liveness detection generally focus on designing…

Cryptography and Security · Computer Science 2018-10-09 Meng Shen , Zelin Liao , Liehuang Zhu , Rashid Mijumbi , Xiaojiang Du , Jiankun Hu

Despite the great advances made in the field of image super-resolution (ISR) during the last years, the performance has merely been evaluated perceptually. Thus, it is still unclear whether ISR is helpful for other vision tasks. In this…

Computer Vision and Pattern Recognition · Computer Science 2016-01-29 Dengxin Dai , Yujian Wang , Yuhua Chen , Luc Van Gool

Biometric recognition has primarily addressed closed-set identification, assuming all probe subjects are in the gallery. However, most practical applications involve open-set biometrics, where probe subjects may or may not be present in the…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Yiyang Su , Minchul Kim , Feng Liu , Anil Jain , Xiaoming Liu

This paper proposes a framework for a privacy-safe iris presentation attack detection (PAD) method, designed solely with synthetically-generated, identity-leakage-free iris images. Once trained, the method is evaluated in a classical way…

Computer Vision and Pattern Recognition · Computer Science 2024-08-07 Mahsa Mitcheff , Patrick Tinsley , Adam Czajka

Cross-spectral biometrics, such as matching imagery of faces or persons from visible (RGB) and infrared (IR) bands, have rapidly advanced over the last decade due to increasing sensitivity, size, quality, and ubiquity of IR focal plane…

Computer Vision and Pattern Recognition · Computer Science 2024-12-02 Kshitij Nikhal , Cedric Nimpa Fondje , Benjamin S. Riggan

The dilation of the pupil and it's variation between a mated pair of irides has been found to be an important factor in the performance of iris recognition systems. Studies on adult irides indicated significant impact of dilation on iris…

Image and Video Processing · Electrical Eng. & Systems 2020-09-03 Priyanka Das , Laura Holsopple , Michael Schuckers , Stephanie Schuckers

Criminal and victim identification based on crime scene images is an important part of forensic investigation. Criminals usually avoid identification by covering their faces and tattoos in the evidence images, which are taken in…

Computer Vision and Pattern Recognition · Computer Science 2019-10-09 Wojciech Michal Matkowski , Frodo Kin Sun Chan , Adams Wai Kin Kong

Iris Presentation Attack Detection (PAD) is essential to secure iris recognition systems. Recent iris PAD solutions achieved good performance by leveraging deep learning techniques. However, most results were reported under intra-database…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Meiling Fang , Fadi Boutros , Naser Damer

Dental comparison is considered a primary identification method, at the level of fingerprints and DNA profiling. One crucial but time-consuming step of this method is the morphological comparison. One of the main challenges to apply this…

Good predictors of ICU Mortality have the potential to identify high-risk patients earlier, improve ICU resource allocation, or create more accurate population-level risk models. Machine learning practitioners typically make choices about…

Artificial Intelligence · Computer Science 2016-02-09 Harini Suresh

Imaging volume of an iris recognition system has been restricting the throughput and cooperation convenience in biometric applications. Numerous improvement trials are still impractical to supersede the dominant fixed-focus lens in…

Image and Video Processing · Electrical Eng. & Systems 2020-11-20 Kunbo Zhang , Zhenteng Shen , Yunlong Wang , Zhenan Sun