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Face recognition (FR) can be abused for privacy intrusion. Governments, private companies, or even individual attackers can collect facial images by web scraping to build an FR system identifying human faces without their consent. This…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Ka-Ho Chow , Sihao Hu , Tiansheng Huang , Ling Liu

The widespread use of image acquisition technologies, along with advances in facial recognition, has raised serious privacy concerns. Face de-identification usually refers to the process of concealing or replacing personal identifiers,…

Computer Vision and Pattern Recognition · Computer Science 2024-11-18 Jingyi Cao , Xiangyi Chen , Bo Liu , Ming Ding , Rong Xie , Li Song , Zhu Li , Wenjun Zhang

In many parts of the world, the use of vast amounts of data collected on public roadways for autonomous driving has increased. In order to detect and anonymize pedestrian faces and nearby car license plates in actual road-driving scenarios,…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Linh Trinh , Bach Ha , Tu Tran

In this paper, a privacy preserving image classification method is proposed under the use of ConvMixer models. To protect the visual information of test images, a test image is divided into blocks, and then every block is encrypted by using…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Rei Aso , Tatsuya Chuman , Hitoshi Kiya

Image anonymization is widely adapted in practice to comply with privacy regulations in many regions. However, anonymization often degrades the quality of the data, reducing its utility for computer vision development. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Håkon Hukkelås , Frank Lindseth

In privacy-preserving machine learning, individual parties are reluctant to share their sensitive training data due to privacy concerns. Even the trained model parameters or prediction can pose serious privacy leakage. To address these…

Cryptography and Security · Computer Science 2020-09-04 Lingjuan Lyu , Yee Wei Law , Kee Siong Ng , Shibei Xue , Jun Zhao , Mengmeng Yang , Lei Liu

While the rapid proliferation of wearable cameras has raised significant concerns about egocentric video privacy, prior work has largely overlooked the unique privacy threats posed to the camera wearer. This work investigates the core…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Yijiang Li , Genpei Zhang , Jiacheng Cheng , Yi Li , Xiaojun Shan , Dashan Gao , Jiancheng Lyu , Yuan Li , Ning Bi , Nuno Vasconcelos

Despite impressive progress in object detection over the last years, it is still an open challenge to reliably detect objects across visual domains. Although the topic has attracted attention recently, current approaches all rely on the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-26 Antonio D'Innocente , Francesco Cappio Borlino , Silvia Bucci , Barbara Caputo , Tatiana Tommasi

Recent research has established the possibility of deducing soft-biometric attributes such as age, gender and race from an individual's face image with high accuracy. However, this raises privacy concerns, especially when face images…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Vahid Mirjalili , Sebastian Raschka , Arun Ross

Preserving privacy of continuous and/or high-dimensional data such as images, videos and audios, can be challenging with syntactic anonymization methods which are designed for discrete attributes. Differential privacy, which provides a more…

Machine Learning · Computer Science 2017-12-04 Jihun Hamm

Nowadays, facial recognition systems are still vulnerable to adversarial attacks. These attacks vary from simple perturbations of the input image to modifying the parameters of the recognition model to impersonate an authorised subject.…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Daile Osorio-Roig , Mahdi Ghafourian , Christian Rathgeb , Ruben Vera-Rodriguez , Christoph Busch , Julian Fierrez

Modern computer vision services often require users to share raw feature descriptors with an untrusted server. This presents an inherent privacy risk, as raw descriptors may be used to recover the source images from which they were…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Francesco Pittaluga , Bingbing Zhuang

Human pose estimation (HPE) is crucial for various applications. However, deploying HPE algorithms in surveillance contexts raises significant privacy concerns due to the potential leakage of sensitive personal information (SPI) such as…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Wenjun Huang , Yang Ni , Arghavan Rezvani , SungHeon Jeong , Hanning Chen , Yezi Liu , Fei Wen , Mohsen Imani

Modern approaches to pose and body shape estimation have recently achieved strong performance even under challenging real-world conditions. Even from a single image of a clothed person, a realistic looking body shape can be inferred that…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Hosnieh Sattar , Katharina Krombholz , Gerard Pons-Moll , Mario Fritz

Recent work on image anonymization has shown that generative adversarial networks (GANs) can generate near-photorealistic faces to anonymize individuals. However, scaling up these networks to the entire human body has remained a challenging…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Håkon Hukkelås , Morten Smebye , Rudolf Mester , Frank Lindseth

A computer vision system using low-resolution image sensors can provide intelligent services (e.g., activity recognition) but preserve unnecessary visual privacy information from the hardware level. However, preserving visual privacy and…

Human-Computer Interaction · Computer Science 2023-03-21 Yuntao Wang , Zirui Cheng , Xin Yi , Yan Kong , Xueyang Wang , Xuhai Xu , Yukang Yan , Chun Yu , Shwetak Patel , Yuanchun Shi

Biometric data contains distinctive human traits such as facial features or gait patterns. The use of biometric data permits an individuation so exact that the data is utilized effectively in identification and authentication systems. But…

Cryptography and Security · Computer Science 2024-07-10 Simon Hanisch , Julian Todt , Jose Patino , Nicholas Evans , Thorsten Strufe

With the growing use of camera devices, the industry has many image datasets that provide more opportunities for collaboration between the machine learning community and industry. However, the sensitive information in the datasets…

Computer Vision and Pattern Recognition · Computer Science 2021-04-08 Jia-Wei Chen , Li-Ju Chen , Chia-Mu Yu , Chun-Shien Lu

Face recognition service has been used in many fields and brings much convenience to people. However, once the user's facial data is transmitted to a service provider, the user will lose control of his/her private data. In recent years,…

Cryptography and Security · Computer Science 2023-11-14 Yuwen Pu , Jiahao Chen , Jiayu Pan , Hao li , Diqun Yan , Xuhong Zhang , Shouling Ji

Enormous amounts of data collected from social networks or other online platforms are being published for the sake of statistics, marketing, and research, among other objectives. The consequent privacy and data security concerns have…

Cryptography and Security · Computer Science 2021-12-24 Ola N. Halawi , Faisal N. Abu-Khzam