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Recent advances in deep learning have significantly increased the performance of face recognition systems. The performance and reliability of these models depend heavily on the amount and quality of the training data. However, the…

Computer Vision and Pattern Recognition · Computer Science 2018-02-19 Adam Kortylewski , Andreas Schneider , Thomas Gerig , Bernhard Egger , Andreas Morel-Forster , Thomas Vetter

The amount of secure data being stored on mobile devices has grown immensely in recent years. However, the security measures protecting this data have stayed static, with few improvements being done to the vulnerabilities of current…

Cryptography and Security · Computer Science 2022-05-18 Laura Pryor , Jacob Mallet , Rushit Dave , Naeem Seliya , Mounika Vanamala , Evelyn Sowells Boone

We create synthetic biometric databases to study general, fundamental, biometric principles. First, we check the validity of the synthetic database design by comparing it to real data in terms of biometric performance. The real data used…

Computer Vision and Pattern Recognition · Computer Science 2017-08-01 Lee Friedman , Oleg Komogortsev

Deep learning-based methods for video pedestrian detection and tracking require large volumes of training data to achieve good performance. However, data acquisition in crowded public environments raises data privacy concerns -- we are not…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Matteo Fabbri , Guillem Braso , Gianluca Maugeri , Orcun Cetintas , Riccardo Gasparini , Aljosa Osep , Simone Calderara , Laura Leal-Taixe , Rita Cucchiara

Neural networks need big annotated datasets for training. However, manual annotation can be too expensive or even unfeasible for certain tasks, like multi-person 2D pose estimation with severe occlusions. A remedy for this is synthetic data…

Computer Vision and Pattern Recognition · Computer Science 2019-08-05 David T. Hoffmann , Dimitrios Tzionas , Micheal J. Black , Siyu Tang

Tele-operated robots rely on real-time user behavior mapping for remote tasks, but ensuring secure authentication remains a challenge. Traditional methods, such as passwords and static biometrics, are vulnerable to spoofing and replay…

Robotics · Computer Science 2025-06-18 Rongyu Yu , Kan Chen , Zeyu Deng , Chen Wang , Burak Kizilkaya , Liying Emma Li

This paper addresses the challenges of data scarcity and high acquisition costs in training robust object detection models for complex industrial environments, such as offshore oil platforms. Data collection in these hazardous settings…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Pedro Antonio Rabelo Saraiva , Enzo Ferreira de Souza , Joao Manoel Herrera Pinheiro , Thiago H. Segreto , Ricardo V. Godoy , Marcelo Becker

Gesture recognition research, unlike NLP, continues to face acute data scarcity, with progress constrained by the need for costly human recordings or image processing approaches that cannot generate authentic variability in the gestures…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Hassan Ali , Doreen Jirak , Luca Müller , Stefan Wermter

Human-centered data collection is typically costly and implicates issues of privacy. Various solutions have been proposed in the literature to reduce this cost, such as crowdsourced data collection, or the use of semi-supervised algorithms.…

Signal Processing · Electrical Eng. & Systems 2021-05-07 Mohammad Nabati , Hojjat Navidan , Reza Shahbazian , Seyed Ali Ghorashi , David Windridge

The creation of virtual humans increasingly leverages automated synthesis of speech and gestures, enabling expressive, adaptable agents that effectively engage users. However, the independent development of voice and gesture generation…

Graphics · Computer Science 2025-07-02 Haoyang Du , Kiran Chhatre , Christopher Peters , Brian Keegan , Rachel McDonnell , Cathy Ennis

In this paper, we show that by using inertial sensor data generated by a smart ring, worn on the finger, the user can be authenticated when making mobile payments or when knocking on a door (for access control). The proposed system can be…

Cryptography and Security · Computer Science 2023-01-11 Jack Sturgess , Simon Birnbach , Simon Eberz , Ivan Martinovic

In this paper, we show that the tap gesture, performed when a user 'taps' a smartwatch onto an NFC-enabled terminal to make a payment, is a biometric capable of implicitly authenticating the user and simultaneously recognising…

Cryptography and Security · Computer Science 2022-12-13 Jack Sturgess , Simon Eberz , Ivo Sluganovic , Ivan Martinovic

Falls represent a significant cause of injury among the elderly population. Extensive research has been devoted to the utilization of wearable IMU sensors in conjunction with machine learning techniques for fall detection. To address the…

Quantitative Methods · Quantitative Biology 2023-10-18 Jie Tang , Bin He , Junkai Xu , Tian Tan , Zhipeng Wang , Yanmin Zhou , Shuo Jiang

Large fingerprint datasets, while important for training and evaluation, are time-consuming and expensive to collect and require strict privacy measures. Researchers are exploring the use of synthetic fingerprint data to address these…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Syed Konain Abbas , Sandip Purnapatra , M. G. Sarwar Murshed , Conor Miller-Lynch , Lambert Igene , Soumyabrata Dey , Stephanie Schuckers , Faraz Hussain

The Internet of Things (IoT) is increasingly empowering people with an interconnected world of physical objects ranging from smart buildings to portable smart devices such as wearables. With recent advances in mobile sensing, wearables have…

Cryptography and Security · Computer Science 2019-07-16 Sudip Vhaduri , Christian Poellabauer

A major limitation to advances in fingerprint spoof detection is the lack of publicly available, large-scale fingerprint spoof datasets, a problem which has been compounded by increased concerns surrounding privacy and security of biometric…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Steven A. Grosz , Anil K. Jain

Synthetic data is being used lately for training deep neural networks in computer vision applications such as object detection, object segmentation and 6D object pose estimation. Domain randomization hereby plays an important role in…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Parth Rawal , Mrunal Sompura , Wolfgang Hintze

Controllable human video generation aims to produce realistic videos of humans with explicitly guided motions and appearances,serving as a foundation for digital humans, animation, and embodied AI.However, the scarcity of largescale,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Yuanchen Fei , Yude Zou , Zejian Kang , Ming Li , Jiaying Zhou , Xiangru Huang

We first study the suitability of behavioral biometrics to distinguish between computers and humans, commonly named as bot detection. We then present BeCAPTCHA-Mouse, a bot detector based on: i) a neuromotor model of mouse dynamics to…

Computer Vision and Pattern Recognition · Computer Science 2021-03-03 Alejandro Acien , Aythami Morales , Julian Fierrez , Ruben Vera-Rodriguez

We propose a biometric identification system where the chosen- and generated-secret keys are used simultaneously, and investigate its fundamental limits from information-theoretic perspectives. The system consists of two phases: enrollment…

Information Theory · Computer Science 2023-03-22 Vamoua Yachongka , Hideki Yagi