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Facial recognition models are increasingly employed by commercial enterprises, government agencies, and cloud service providers for identity verification, consumer services, and surveillance. These models are often trained using vast…

Computer Vision and Pattern Recognition · Computer Science 2025-01-16 Chen Chen , Mengyuan Sun , Xueluan Gong , Yanjiao Chen , Qian Wang

Face frontalization consists of synthesizing a frontally-viewed face from an arbitrarily-viewed one. The main contribution of this paper is a frontalization methodology that preserves non-rigid facial deformations in order to boost the…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Zhiqi Kang , Mostafa Sadeghi , Radu Horaud , Xavier Alameda-Pineda

While the rapid development of facial recognition algorithms has enabled numerous beneficial applications, their widespread deployment has raised significant concerns about the risks of mass surveillance and threats to individual privacy.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Paweł Borsukiewicz , Daniele Lunghi , Melissa Tessa , Jacques Klein , Tegawendé F. Bissyandé

There are currently two approaches to anonymization: "utility first" (use an anonymization method with suitable utility features, then empirically evaluate the disclosure risk and, if necessary, reduce the risk by possibly sacrificing some…

Databases · Computer Science 2015-01-20 Josep Domingo-Ferrer , Krishnamurty Muralidhar

Voice conversion for speaker anonymization is an emerging concept for privacy protection. In a deep learning setting, this is achieved by extracting multiple features from speech, altering the speaker identity, and waveform synthesis.…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-30 Ünal Ege Gaznepoglu , Nils Peters

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

Nowadays advanced image editing tools and technical skills produce tampered images more realistically, which can easily evade image forensic systems and make authenticity verification of images more difficult. To tackle this challenging…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Jing Hao , Zhixin Zhang , Shicai Yang , Di Xie , Shiliang Pu

The demand for privacy in facial image dissemination is gaining ground internationally, echoed by the proliferation of regulations such as GDPR, DPDPA, CCPA, PIPL, and APPI. While recent advances in anonymization surpass pixelation or blur…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Majed El Helou , Doruk Cetin , Petar Stamenkovic , Niko Benjamin Huber , Fabio Zünd

We propose a reversible face de-identification method for low resolution video data, where landmark-based techniques cannot be reliably used. Our solution is able to generate a photo realistic de-identified stream that meets the data…

Computer Vision and Pattern Recognition · Computer Science 2020-07-10 Hugo Proença

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

Anonymizing sensitive information in user text is essential for privacy, yet existing methods often apply uniform treatment across attributes, which can conflict with communicative intent and obscure necessary information. This is…

Cryptography and Security · Computer Science 2026-01-09 Weihao Shen , Yaxin Xu , Shuang Li , Wei Chen , Yuqin Lan , Meng Yuan , Fuzhen Zhuang

Text-to-image diffusion models have demonstrated remarkable effectiveness in rapid and high-fidelity personalization, even when provided with only a few user images. However, the effectiveness of personalization techniques has lead to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-06 Naresh Kumar Devulapally , Shruti Agarwal , Tejas Gokhale , Vishnu Suresh Lokhande

Photos of faces uploaded online are vulnerable to malicious actors who can scrape facial images from online sources and intrude on personal privacy via unauthorized use of facial recognition models. This paper presents FaceCloak, a novel…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Zachary Yahn , Fatih Ilhan , Tiansheng Huang , Selim Tekin , Sihao Hu , Yichang Xu , Margaret Loper , Ling Liu

Motion sensors such as accelerometers and gyroscopes measure the instant acceleration and rotation of a device, in three dimensions. Raw data streams from motion sensors embedded in portable and wearable devices may reveal private…

Machine Learning · Computer Science 2019-02-20 Mohammad Malekzadeh , Richard G. Clegg , Andrea Cavallaro , Hamed Haddadi

Face recognition has been used more and more in real world applications in recent years. However, when the skin color bias is coupled with intra-personal variations like harsh illumination, the face recognition task is more likely to fail,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-25 Hongliu Cao , Minh Nhat Do , Alexis Ravanel , Eoin Thomas

Personalized text-to-image generation has emerged as a powerful and sought-after tool, empowering users to create customized images based on their specific concepts and prompts. However, existing approaches to personalization encounter…

Computer Vision and Pattern Recognition · Computer Science 2023-09-13 Li Chen , Mengyi Zhao , Yiheng Liu , Mingxu Ding , Yangyang Song , Shizun Wang , Xu Wang , Hao Yang , Jing Liu , Kang Du , Min Zheng

Privacy considerations and bias in datasets are quickly becoming high-priority issues that the computer vision community needs to face. So far, little attention has been given to practical solutions that do not involve collection of new…

Computer Vision and Pattern Recognition · Computer Science 2021-03-12 Peiyang He , Charlie Griffin , Krzysztof Kacprzyk , Artjom Joosen , Michael Collyer , Aleksandar Shtedritski , Yuki M. Asano

In this work, we focus on protection against identity disclosure in the publication of sparse multidimensional data. Existing multidimensional anonymization techniquesa) protect the privacy of users either by altering the set of…

Databases · Computer Science 2012-07-03 Manolis Terrovitis , John Liagouris , Nikos Mamoulis , Spiros Skiadopoulos

Most of the existing approaches for person re-identification consider a static setting where the number of cameras in the network is fixed. An interesting direction, which has received little attention, is to explore the dynamic nature of a…

Computer Vision and Pattern Recognition · Computer Science 2020-08-07 Sk Miraj Ahmed , Aske R Lejbølle , Rameswar Panda , Amit K. Roy-Chowdhury

Image and video-capturing technologies have permeated our every-day life. Such technologies can continuously monitor individuals' expressions in real-life settings, affording us new insights into their emotional states and transitions, thus…

Machine Learning · Computer Science 2020-01-20 Vansh Narula , Zhangyang , Wang , Theodora Chaspari