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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

Unprecedented data collection and sharing have exacerbated privacy concerns and led to increasing interest in privacy-preserving tools that remove sensitive attributes from images while maintaining useful information for other tasks.…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Kang Liu , Benjamin Tan , Siddharth Garg

We demonstrate that modern image recognition methods based on artificial neural networks can recover hidden information from images protected by various forms of obfuscation. The obfuscation techniques considered in this paper are mosaicing…

Cryptography and Security · Computer Science 2016-09-08 Richard McPherson , Reza Shokri , Vitaly Shmatikov

In this paper, we introduce an innovative method of safeguarding user privacy against the generative capabilities of Neural Radiance Fields (NeRF) models. Our novel poisoning attack method induces changes to observed views that are…

Computer Vision and Pattern Recognition · Computer Science 2023-10-06 Yihan Wu , Brandon Y. Feng , Heng Huang

There is growing concern about image privacy due to the popularity of social media and photo devices, along with increasing use of face recognition systems. However, established image de-identification techniques are either too subject to…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Tao Li , Chris Clifton

Object detection is fundamental to various real-world applications, such as security monitoring and surveillance video analysis. Despite their advancements, state-of-the-art object detectors are still vulnerable to adversarial patch…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Jin Ma , Mohammed Aldeen , Christopher Salas , Feng Luo , Mashrur Chowdhury , Mert Pesé , Long Cheng

Co-salient object detection (CoSOD) has recently achieved significant progress and played a key role in retrieval-related tasks. However, it inevitably poses an entirely new safety and security issue, i.e., highly personal and sensitive…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Ruijun Gao , Qing Guo , Felix Juefei-Xu , Hongkai Yu , Huazhu Fu , Wei Feng , Yang Liu , Song Wang

Among the most challenging traffic-analysis attacks to confound are those leveraging the sizes of objects downloaded over the network. In this paper we systematically analyze this problem under realistic constraints regarding the padding…

Cryptography and Security · Computer Science 2021-08-05 Andrew C. Reed , Michael K. Reiter

Social media users generate tremendous amounts of data. To better serve users, it is required to share the user-related data among researchers, advertisers and application developers. Publishing such data would raise more concerns on user…

Cryptography and Security · Computer Science 2018-05-03 Ghazaleh Beigi , Kai Shu , Yanchao Zhang , Huan Liu

While widely adopted in practical applications, face recognition has been critically discussed regarding the malicious use of face images and the potential privacy problems, e.g., deceiving payment system and causing personal sabotage.…

Cryptography and Security · Computer Science 2020-08-05 Jiaming Zhang , Jitao Sang , Xian Zhao , Xiaowen Huang , Yanfeng Sun , Yongli Hu

Deep neural networks (DNNs) are known to be vulnerable to adversarial examples. Existing works have mostly focused on either digital adversarial examples created via small and imperceptible perturbations, or physical-world adversarial…

Computer Vision and Pattern Recognition · Computer Science 2020-06-23 Ranjie Duan , Xingjun Ma , Yisen Wang , James Bailey , A. K. Qin , Yun Yang

Most visual retrieval applications store feature vectors for downstream matching tasks. These vectors, from where user information can be spied out, will cause privacy leakage if not carefully protected. To mitigate privacy risks, current…

Computer Vision and Pattern Recognition · Computer Science 2022-08-02 Qiang Meng , Feng Zhou

While deep face recognition (FR) systems have shown amazing performance in identification and verification, they also arouse privacy concerns for their excessive surveillance on users, especially for public face images widely spread on…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Shengshan Hu , Xiaogeng Liu , Yechao Zhang , Minghui Li , Leo Yu Zhang , Hai Jin , Libing Wu

We have investigated a new application of adversarial examples, namely location privacy protection against landmark recognition systems. We introduce mask-guided multimodal projected gradient descent (MM-PGD), in which adversarial examples…

Computer Vision and Pattern Recognition · Computer Science 2022-06-29 Trung-Nghia Le , Ta Gu , Huy H. Nguyen , Isao Echizen

This paper presents a privacy-preserving event detection scheme based on measurements made by a network of sensors. A diameter-like decision statistic made up of the marginal types of the measurements observed by the sensors is employed.…

Information Theory · Computer Science 2025-05-06 Xiaoshan Wang , Tan F. Wong

DeepFake face swapping presents a significant threat to online security and social media, which can replace the source face in an arbitrary photo/video with the target face of an entirely different person. In order to prevent this fraud,…

Computer Vision and Pattern Recognition · Computer Science 2022-04-27 Junhao Dong , Yuan Wang , Jianhuang Lai , Xiaohua Xie

Pose estimation is an important technique for nonverbal human-robot interaction. That said, the presence of a camera in a person's space raises privacy concerns and could lead to distrust of the robot. In this paper, we propose a…

Robotics · Computer Science 2020-11-17 Youya Xia , Yifan Tang , Yuhan Hu , Guy Hoffman

Deep learning models achieve remarkable accuracy in computer vision tasks, yet remain vulnerable to adversarial examples--carefully crafted perturbations to input images that can deceive these models into making confident but incorrect…

Computer Vision and Pattern Recognition · Computer Science 2025-04-18 Khoi Nguyen Tiet Nguyen , Wenyu Zhang , Kangkang Lu , Yuhuan Wu , Xingjian Zheng , Hui Li Tan , Liangli Zhen

We introduce ROAR (Robust Object Removal and Re-annotation), a scalable framework for privacy-preserving dataset obfuscation that eliminates sensitive objects instead of modifying them. Our method integrates instance segmentation with…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Murat Bilgehan Ertan , Ronak Sahu , Phuong Ha Nguyen , Kaleel Mahmood , Marten van Dijk

In the era of cloud computing and data-driven applications, it is crucial to protect sensitive information to maintain data privacy, ensuring truly reliable systems. As a result, preserving privacy in deep learning systems has become a…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Fabian Perez , Jhon Lopez , Henry Arguello
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