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The rapid advancement of diffusion models and personalization techniques has made it possible to recreate individual portraits from just a few publicly available images. While such capabilities empower various creative applications, they…

Computer Vision and Pattern Recognition · Computer Science 2026-05-29 Guanyu Wang , Kailong Wang , Yihao Huang , Mingyi Zhou , Geguang Pu , Li Li

Privacy is a crucial concern in collaborative machine vision where a part of a Deep Neural network (DNN) model runs on the edge, and the rest is executed on the cloud. In such applications, the machine vision model does not need the exact…

Image and Video Processing · Electrical Eng. & Systems 2024-09-05 Bardia Azizian , Ivan V. Bajic

The growing use of portrait images in computer vision highlights the need to protect personal identities. At the same time, anonymized images must remain useful for downstream computer vision tasks. In this work, we propose a unified…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Ali Salar , Qing Liu , Guoying Zhao

There is an increasing concern in computer vision devices invading users' privacy by recording unwanted videos. On the one hand, we want the camera systems to recognize important events and assist human daily lives by understanding its…

Computer Vision and Pattern Recognition · Computer Science 2018-07-30 Zhongzheng Ren , Yong Jae Lee , Michael S. Ryoo

People may be unaware of the privacy risks of uploading an image online. In this paper, we present Graph Privacy Advisor, an image privacy classifier that uses scene information and object cardinality as cues to predict whether an image is…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Dimitrios Stoidis , Andrea Cavallaro

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

This paper proposes a novel paradigm for facial privacy protection that unifies multiple characteristics including anonymity, diversity, reversibility and security within a single lightweight framework. We name it PRO-Face S, short for…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Lin Yuan , Kai Liang , Xiao Pu , Yan Zhang , Jiaxu Leng , Tao Wu , Nannan Wang , Xinbo Gao

The proliferation of images captured from millions of cameras and the advancement of facial recognition (FR) technology have made the abuse of FR a severe privacy threat. Existing works typically rely on obfuscation, synthesis, or…

Computer Vision and Pattern Recognition · Computer Science 2024-01-02 Wenjun Zhu , Yuan Sun , Jiani Liu , Yushi Cheng , Xiaoyu Ji , Wenyuan Xu

Recent text-to-image diffusion models have demonstrated remarkable generation of realistic facial images conditioned on textual prompts and human identities, enabling creating personalized facial imagery. However, existing prompt-based…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Han-Wei Kung , Tuomas Varanka , Nicu Sebe

Camera-based person re-identification is a heavily privacy-invading task by design, benefiting from rich visual data to match together person representations across different cameras. This high-dimensional data can then easily be used for…

Computer Vision and Pattern Recognition · Computer Science 2023-06-06 Lucas Maris , Yuki Matsuda , Keiichi Yasumoto

Sequential data is everywhere, and it can serve as a basis for research that will lead to improved processes. For example, road infrastructure can be improved by identifying bottlenecks in GPS data, or early diagnosis can be improved by…

Cryptography and Security · Computer Science 2020-02-25 Sigal Shaked , Lior Rokach

We introduce a novel formulation of visual privacy preservation for video foundation models that operates entirely in the latent space. While spatio-temporal features learned by foundation models have deepened general understanding of video…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Joseph Fioresi , Ishan Rajendrakumar Dave , Mubarak Shah

Image-based localization is a core component of many augmented/mixed reality (AR/MR) and autonomous robotic systems. Current localization systems rely on the persistent storage of 3D point clouds of the scene to enable camera pose…

Computer Vision and Pattern Recognition · Computer Science 2019-03-14 Pablo Speciale , Johannes L. Schönberger , Sing Bing Kang , Sudipta N. Sinha , Marc Pollefeys

To protect image contents, most existing encryption algorithms are designed to transform an original image into a texture-like or noise-like image, which is, however, an obvious visual sign indicating the presence of an encrypted image,…

Computer Vision and Pattern Recognition · Computer Science 2018-01-03 Xintao Duan , Haoxian Song , En Zhang , Jingjing Liu

Text-to-image diffusion models, such as Stable Diffusion, generate highly realistic images from text descriptions. However, the generation of certain content at such high quality raises concerns. A prominent issue is the accurate depiction…

Computer Vision and Pattern Recognition · Computer Science 2026-02-09 Liang Shi , Jie Zhang , Shiguang Shan

The accelerated use of digital cameras prompts an increasing concern about privacy and security, particularly in applications such as action recognition. In this paper, we propose an optimizing framework to provide robust visual privacy…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Carlos Hinojosa , Miguel Marquez , Henry Arguello , Ehsan Adeli , Li Fei-Fei , Juan Carlos Niebles

The ubiquitous use of face recognition has sparked increasing privacy concerns, as unauthorized access to sensitive face images could compromise the information of individuals. This paper presents an in-depth study of the privacy protection…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Yuxi Mi , Yuge Huang , Jiazhen Ji , Minyi Zhao , Jiaxiang Wu , Xingkun Xu , Shouhong Ding , Shuigeng Zhou

Privacy concerns around ever increasing number of cameras are increasing in today's digital age. Although existing anonymization methods are able to obscure identity information, they often struggle to preserve the utility of the images. In…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Han-Wei Kung , Tuomas Varanka , Terence Sim , Nicu Sebe

Because of the explosive growth of face photos as well as their widespread dissemination and easy accessibility in social media, the security and privacy of personal identity information becomes an unprecedented challenge. Meanwhile, the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-03 Yunqian Wen , Li Song , Bo Liu , Ming Ding , Rong Xie

While convenient in daily life, face recognition technologies also raise privacy concerns for regular users on the social media since they could be used to analyze face images and videos, efficiently and surreptitiously without any security…

Computer Vision and Pattern Recognition · Computer Science 2022-05-25 Yaoyao Zhong , Weihong Deng