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Privacy protection has become a top priority as the proliferation of AI techniques has led to widespread collection and misuse of personal data. Anonymization and visual identity information hiding are two important facial privacy…

Computer Vision and Pattern Recognition · Computer Science 2023-09-12 Xiao He , Mingrui Zhu , Dongxin Chen , Nannan Wang , Xinbo Gao

We propose a privacy-preserving framework for learning visual classifiers by leveraging distributed private image data. This framework is designed to aggregate multiple classifiers updated locally using private data and to ensure that no…

Computer Vision and Pattern Recognition · Computer Science 2017-07-31 Ryo Yonetani , Vishnu Naresh Boddeti , Kris M. Kitani , Yoichi Sato

Lensless imaging can provide visual privacy due to the highly multiplexed characteristic of its measurements. However, this alone is a weak form of security, as various adversarial attacks can be designed to invert the one-to-many scene…

Computer Vision and Pattern Recognition · Computer Science 2022-11-24 Eric Bezzam , Martin Vetterli , Matthieu Simeoni

The surge in multimodal AI's success has sparked concerns over data privacy in vision-and-language tasks. While CLIP has revolutionized multimodal learning through joint training on images and text, its potential to unintentionally disclose…

Machine Learning · Computer Science 2024-03-04 Alyssa Huang , Peihan Liu , Ryumei Nakada , Linjun Zhang , Wanrong Zhang

The proliferation of large AI models trained on uncurated, often sensitive web-scraped data has raised significant privacy concerns. One of the concerns is that adversaries can extract information about the training data using privacy…

Machine Learning · Computer Science 2024-07-24 Dominik Hintersdorf , Lukas Struppek , Daniel Neider , Kristian Kersting

The recent emergence of ubiquitous, multi-platform eye tracking has raised user privacy concerns over re-identification across platforms, where a person is re-identified across multiple eye tracking-enabled platforms using personally…

Human-Computer Interaction · Computer Science 2024-02-14 Samantha Aziz , Oleg Komogortsev

With the increasing demands for privacy protection, privacy-preserving machine learning has been drawing much attention in both academia and industry. However, most existing methods have their limitations in practical applications. On the…

Machine Learning · Computer Science 2022-02-22 Fei Zheng , Chaochao Chen , Xiaolin Zheng , Mingjie Zhu

DNA fingerprinting and matching for identifying suspects has been a common practice in criminal investigation. Such proceedings involve multiple parties such as investigating agencies, suspects and forensic labs. A major challenge in such…

Cryptography and Security · Computer Science 2024-09-24 Sankha Das

Data privacy is a central concern in many applications involving ranking from incomplete and noisy pairwise comparisons, such as recommendation systems, educational assessments, and opinion surveys on sensitive topics. In this work, we…

Statistics Theory · Mathematics 2025-07-15 T. Tony Cai , Abhinav Chakraborty , Yichen Wang

Eye tracking is routinely being incorporated into virtual reality (VR) systems. Prior research has shown that eye tracking data, if exposed, can be used for re-identification attacks. The state of our knowledge about currently existing…

Human-Computer Interaction · Computer Science 2024-02-22 Ethan Wilson , Azim Ibragimov , Michael J. Proulx , Sai Deep Tetali , Kevin Butler , Eakta Jain

As the privacy risks posed by camera surveillance and facial recognition have grown, so has the research into privacy preservation algorithms. Among these, visual privacy preservation algorithms attempt to impart bodily privacy to subjects…

Computer Vision and Pattern Recognition · Computer Science 2023-01-13 Sophie Noiret , Siddharth Ravi , Martin Kampel , Francisco Florez-Revuelta

With the rapid advancement of artificial intelligence and deep learning, medical image analysis has become a critical tool in modern healthcare, significantly improving diagnostic accuracy and efficiency. However, AI-based methods also…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Yanming Zhu , Xuefei Yin , Alan Wee-Chung Liew , Hui Tian

Face recognition is a widely-used technique for identification or verification, where a verifier checks whether a face image matches anyone stored in a database. However, in scenarios where the database is held by a third party, such as a…

Cryptography and Security · Computer Science 2023-07-25 Jianli Bai , Xiaowu Zhang , Xiangfu Song , Hang Shao , Qifan Wang , Shujie Cui , Giovanni Russello

Distance Metric Learning (DML) has drawn much attention over the last two decades. A number of previous works have shown that it performs well in measuring the similarities of individuals given a set of correctly labeled pairwise data by…

Machine Learning · Computer Science 2020-03-31 Jing Li , Yuangang Pan , Yulei Sui , Ivor W. Tsang

Pan-privacy was proposed by Dwork et al. as an approach to designing a private analytics system that retains its privacy properties in the face of intrusions that expose the system's internal state. Motivated by federated telemetry…

Cryptography and Security · Computer Science 2025-03-18 Vitaly Feldman , Audra McMillan , Guy N. Rothblum , Kunal Talwar

We present a framework for the design of coding mechanisms that allow remotely operating anomaly detectors in a privacy-preserving manner. We consider the following problem setup. A remote station seeks to identify anomalies based on system…

Cryptography and Security · Computer Science 2022-11-22 Haleh Hayati , Nathan van de Wouw , Carlos Murguia

Video privacy leakage is becoming an increasingly severe public problem, especially in cloud-based video surveillance systems. It leads to the new need for secure cloud-based video applications, where the video is encrypted for privacy…

Image and Video Processing · Electrical Eng. & Systems 2021-08-31 Xianhao Tian , Peijia Zheng , Jiwu Huang

Biometric matching involves storing and processing sensitive user information. Maintaining the privacy of this data is thus a major challenge, and homomorphic encryption offers a possible solution. We propose a privacy-preserving…

Cryptography and Security · Computer Science 2021-11-25 Gaëtan Pradel , Chris Mitchell

Lensless cameras, innovatively replacing traditional lenses for ultra-thin, flat optics, encode light directly onto sensors, producing images that are not immediately recognizable. This compact, lightweight, and cost-effective imaging…

Computer Vision and Pattern Recognition · Computer Science 2024-06-07 Xin Cai , Hailong Zhang , Chenchen Wang , Wentao Liu , Jinwei Gu , Tianfan Xue

This paper investigates the privacy-preserving distributed optimization problem, aiming to protect agents' private information from potential attackers during the optimization process. Gradient tracking, an advanced technique for improving…

Machine Learning · Computer Science 2025-09-24 Furan Xie , Bing Liu , Li Chai