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The rapid growth of social media has led to the widespread sharing of individual portrait images, which pose serious privacy risks due to the capabilities of automatic face recognition (AFR) systems for mass surveillance. Hence, protecting…

Computer Vision and Pattern Recognition · Computer Science 2025-03-14 Ali Salar , Qing Liu , Yingli Tian , Guoying Zhao

As billions of personal data being shared through social media and network, the data privacy and security have drawn an increasing attention. Several attempts have been made to alleviate the leakage of identity information from face photos,…

Machine Learning · Computer Science 2021-08-17 Xiao Yang , Yinpeng Dong , Tianyu Pang , Hang Su , Jun Zhu , Yuefeng Chen , Hui Xue

In today's data-driven analytics landscape, deep learning has become a powerful tool, with latent representations, known as embeddings, playing a central role in several applications. In the face analytics domain, such embeddings are…

Cryptography and Security · Computer Science 2025-05-20 Arjun Ramesh Kaushik , Bharat Chandra Yalavarthi , Arun Ross , Vishnu Boddeti , Nalini Ratha

The modern surge in camera usage alongside widespread computer vision technology applications poses significant privacy and security concerns. Current artificial intelligence (AI) technologies aid in recognizing relevant events and…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Jhon Lopez , Carlos Hinojosa , Henry Arguello , Bernard Ghanem

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

Face recognition technology has been deployed in various real-life applications. The most sophisticated deep learning-based face recognition systems rely on training millions of face images through complex deep neural networks to achieve…

Computer Vision and Pattern Recognition · Computer Science 2024-01-25 Dong Han , Yong Li , Joachim Denzler

Generally, privacy-enhancing face recognition systems are designed to offer permanent protection of face embeddings. Recently, so-called soft-biometric privacy-enhancement approaches have been introduced with the aim of canceling…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Daile Osorio-Roig , Paul A. Gerlitz , Christian Rathgeb , Christoph Busch

Mask-based lensless cameras offer a novel design for imaging systems by replacing the lens in a conventional camera with a layer of coded mask. Each pixel of the lensless camera encodes the information of the entire 3D scene. Existing…

Image and Video Processing · Electrical Eng. & Systems 2022-12-23 Yucheng Zheng , M. Salman Asif

Machine learning models are prone to memorizing sensitive data, making them vulnerable to membership inference attacks in which an adversary aims to guess if an input sample was used to train the model. In this paper, we show that prior…

Cryptography and Security · Computer Science 2020-12-10 Liwei Song , Prateek Mittal

Conventional adversarial defenses reduce classification accuracy whether or not a model is under attacks. Moreover, most of image processing based defenses are defeated due to the problem of obfuscated gradients. In this paper, we propose a…

Machine Learning · Computer Science 2020-05-19 MaungMaung AprilPyone , Hitoshi Kiya

The widespread adoption of face recognition has led to increasing privacy concerns, as unauthorized access to face images can expose sensitive personal information. This paper explores face image protection against viewing and recovery…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Yuxi Mi , Zhizhou Zhong , Yuge Huang , Jiazhen Ji , Jianqing Xu , Jun Wang , Shaoming Wang , Shouhong Ding , Shuigeng Zhou

Local Differential Privacy (LDP) is the gold standard trust model for privacy-preserving machine learning by guaranteeing privacy at the data source. However, its application to image data has long been considered impractical due to the…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Yuanming Cao , Chengqi Li , Wenbo He

With an increase in mobile and camera devices' popularity, digital content in the form of images has increased drastically. As personal life is being continuously documented in pictures, the risk of losing it to eavesdroppers is a matter of…

Cryptography and Security · Computer Science 2021-07-28 Prutha Gaherwar , Shraddha Joshi , Raviraj Joshi , Rahul Khengare

In this paper, we propose a privacy-preserving image classification method that is based on the combined use of encrypted images and the vision transformer (ViT). The proposed method allows us not only to apply images without visual…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Zheng Qi , AprilPyone MaungMaung , Yuma Kinoshita , Hitoshi Kiya

The issue of detecting deepfakes has garnered significant attention in the research community, with the goal of identifying facial manipulations for abuse prevention. Although recent studies have focused on developing generalized models…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Jiazhi Guan , Tianshu Hu , Hang Zhou , Zhizhi Guo , Lirui Deng , Chengbin Quan , Errui Ding , Youjian Zhao

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

Cloud-assisted image services are widely used for various applications. Due to the high computational complexity of existing image encryption technology, it is extremely challenging to provide privacy preserving image services for…

Cryptography and Security · Computer Science 2014-12-19 Xuangou Wu , Shaojie Tang , Panlong Yang

In this paper, we propose a privacy-preserving image classification method that uses encrypted images and an isotropic network such as the vision transformer. The proposed method allows us not only to apply images without visual information…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 AprilPyone MaungMaung , Hitoshi Kiya

This paper aims to improve privacy-preserving visual recognition, an increasingly demanded feature in smart camera applications, by formulating a unique adversarial training framework. The proposed framework explicitly learns a degradation…

Computer Vision and Pattern Recognition · Computer Science 2020-10-26 Zhenyu Wu , Zhangyang Wang , Zhaowen Wang , Hailin Jin

Recent developments in hardware, computer graphics, and AI may soon enable AR/VR head-mounted displays (HMDs) to become everyday devices like smartphones and tablets. Eye trackers within HMDs provide a special opportunity for such setups as…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Mengdi Wang , Efe Bozkir , Enkelejda Kasneci