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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

Differential privacy is a mathematical notion of data privacy that has fast become the de facto standard in privacy-preserving data analysis. Recently a lot of work has focused on differential privacy in the quantum setting. Continuing on…

Quantum Physics · Physics 2026-04-14 Arghya Mukherjee , Hassan Jameel Asghar , Gavin K. Brennen

This paper presents a lightweight three-dimensional convolutional neural network (3DCNN) for human activity recognition (HAR) using event-based vision data. Privacy preservation is a key challenge in human monitoring systems, as…

Computer Vision and Pattern Recognition · Computer Science 2026-02-24 Mehdi Sefidgar Dilmaghani , Francis Fowley , Peter Corcoran

The massive deployment of Machine Learning (ML) models raises serious concerns about data protection. Privacy-enhancing technologies (PETs) offer a promising first step, but hard challenges persist in achieving confidentiality and…

Cryptography and Security · Computer Science 2024-07-01 Maurizio Colombo , Rasool Asal , Ernesto Damiani , Lamees Mahmoud AlQassem , Al Anoud Almemari , Yousof Alhammadi

We present a framework to learn privacy-preserving encodings of images that inhibit inference of chosen private attributes, while allowing recovery of other desirable information. Rather than simply inhibiting a given fixed pre-trained…

Machine Learning · Computer Science 2018-12-06 Francesco Pittaluga , Sanjeev J. Koppal , Ayan Chakrabarti

We address the problem of network quantization, that is, reducing bit-widths of weights and/or activations to lighten network architectures. Quantization methods use a rounding function to map full-precision values to the nearest quantized…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Dohyung kim , Junghyup Lee , Bumsub Ham

Recent advances in large-scale video models have significantly improved video understanding across domains such as surveillance, healthcare, and entertainment. However, these models also amplify privacy risks by encoding sensitive…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Nazia Aslam , Abhisek Ray , Joakim Bruslund Haurum , Lukas Esterle , Kamal Nasrollahi

Facial expression recognition (FER) systems raise significant privacy concerns due to the potential exposure of sensitive identity information. This paper presents a study on removing identity information while preserving FER capabilities.…

Computer Vision and Pattern Recognition · Computer Science 2024-12-04 Feng Xu , David Ahmedt-Aristizabal , Lars Petersson , Dadong Wang , Xun Li

Existing research on privacy-preserving Human Activity Recognition (HAR) typically evaluates methods against a binary paradigm: clear video versus a single privacy transformation. This limits cross-method comparability and obscures the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Samar Ansari

In this paper, we propose a preprocessing method for conventional image and video encoders that can make these existing encoders content-aware. By going through our process, a higher quality parameter could be set on a traditional encoder…

Computer Vision and Pattern Recognition · Computer Science 2020-09-02 Likun Liu , Hua Qi

With the extensive applications of machine learning, the issue of private or sensitive data in the training examples becomes more and more serious: during the training process, personal information or habits may be disclosed to unexpected…

Quantum Physics · Physics 2017-08-01 Shenggang Ying , Mingsheng Ying , Yuan Feng

The popularity of various social platforms has prompted more people to share their routine photos online. However, undesirable privacy leakages occur due to such online photo sharing behaviors. Advanced deep neural network (DNN) based…

Computer Vision and Pattern Recognition · Computer Science 2022-07-05 Mingfu Xue , Shichang Sun , Zhiyu Wu , Can He , Jian Wang , Weiqiang Liu

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

Product Quantization (PQ) has long been a mainstream for generating an exponentially large codebook at very low memory/time cost. Despite its success, PQ is still tricky for the decomposition of high-dimensional vector space, and the…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Lianli Gao , Xiaosu Zhu , Jingkuan Song , Zhou Zhao , Heng Tao Shen

We investigate privacy-preserving, video-based action recognition in deep learning, a problem with growing importance in smart camera applications. A novel adversarial training framework is formulated to learn an anonymization transform for…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Zhenyu Wu , Haotao Wang , Zhaowen Wang , Hailin Jin , Zhangyang Wang

Security monitoring via ubiquitous cameras and their more extended in intelligent buildings stand to gain from advances in signal processing and machine learning. While these innovative and ground-breaking applications can be considered as…

Cryptography and Security · Computer Science 2026-05-06 Mehmet Yamac , Mete Ahishali , Nikolaos Passalis , Jenni Raitoharju , Bulent Sankur , Moncef Gabbouj

Privacy becomes a crucial issue when outsourcing the training of machine learning (ML) models to cloud-based platforms offering machine-learning services. While solutions based on cryptographic primitives have been developed, they incur a…

Cryptography and Security · Computer Science 2020-10-21 Mathilde Raynal , Radhakrishna Achanta , Mathias Humbert

Hardware-friendly network quantization (e.g., binary/uniform quantization) can efficiently accelerate the inference and meanwhile reduce memory consumption of the deep neural networks, which is crucial for model deployment on…

Computer Vision and Pattern Recognition · Computer Science 2019-08-15 Ruihao Gong , Xianglong Liu , Shenghu Jiang , Tianxiang Li , Peng Hu , Jiazhen Lin , Fengwei Yu , Junjie Yan

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

Visual localization is the task of estimating the camera pose from which a given image was taken and is central to several 3D computer vision applications. With the rapid growth in the popularity of AR/VR/MR devices and cloud-based…

Computer Vision and Pattern Recognition · Computer Science 2023-05-09 Kunal Chelani , Torsten Sattler , Fredrik Kahl , Zuzana Kukelova