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The rapid growth of multimedia consumption, driven by major advances in mobile devices since the mid-2000s, has led to widespread use of video conferencing applications (VCAs) such as Zoom and Google Meet, as well as instant messaging…

Cryptography and Security · Computer Science 2026-01-13 Michael Sidorov , Ofer Hadar

How can agents exchange information to learn while protecting privacy? Healthcare centers collaborating on clinical trials must balance knowledge sharing with safeguarding sensitive patient data. We address this challenge by using…

Machine Learning · Computer Science 2025-03-19 Marios Papachristou , M. Amin Rahimian

Analytics on video recorded by cameras in public areas have the potential to fuel many exciting applications, but also pose the risk of intruding on individuals' privacy. Unfortunately, existing solutions fail to practically resolve this…

Cryptography and Security · Computer Science 2021-06-24 Frank Cangialosi , Neil Agarwal , Venkat Arun , Junchen Jiang , Srinivas Narayana , Anand Sarwate , Ravi Netravali

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

This study proposes a privacy-preserving Visual SLAM framework for estimating camera poses and performing bundle adjustment with mixed line and point clouds in real time. Previous studies have proposed localization methods to estimate a…

Computer Vision and Pattern Recognition · Computer Science 2020-07-28 Mikiya Shibuya , Shinya Sumikura , Ken Sakurada

We provide a unified framework using which we design scalable dynamic adaptive video streaming algorithms based on index based policies (dubbed DAS-IP) to maximize the Quality of Experience (QoE) provided to clients using video streaming…

Networking and Internet Architecture · Computer Science 2016-12-20 Rahul Singh , P. R. Kumar

The collection and sharing of genomic data are becoming increasingly commonplace in research, clinical, and direct-to-consumer settings. The computational protocols typically adopted to protect individual privacy include sharing summary…

Cryptography and Security · Computer Science 2023-02-06 Rajagopal Venkatesaramani , Zhiyu Wan , Bradley A. Malin , Yevgeniy Vorobeychik

We study an information-theoretic privacy mechanism design, where an agent observes useful data $Y$ and wants to reveal the information to a user. Since the useful data is correlated with the private data $X$, the agent uses a privacy…

Information Theory · Computer Science 2025-01-22 Amirreza Zamani , Parastoo Sadeghi , Mikael Skoglund

Differential privacy is the state-of-the-art definition for privacy, guaranteeing that any analysis performed on a sensitive dataset leaks no information about the individuals whose data are contained therein. In this thesis, we develop…

Machine Learning · Computer Science 2023-11-29 Vassilis Digalakis

Real-time unmanned aerial vehicle (UAV) video streaming is essential for time-sensitive applications, including remote surveillance, emergency response, and environmental monitoring. However, it faces challenges such as limited bandwidth,…

Image and Video Processing · Electrical Eng. & Systems 2025-07-10 Xuyang Chen , Chong Huang , Daquan Feng , Lei Luo , Yao Sun , Xiang-Gen Xia

Nowadays, visual intelligence tools have become ubiquitous, offering all kinds of convenience and possibilities. However, these tools have high computational requirements that exceed the capabilities of resource-constrained mobile and…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-12-11 Zihao Ding , Mufeng Zhu , Zhongze Tang , Sheng Wei , Yao Liu

Conversion rate (CVR) estimation aims to predict the probability of conversion event after a user has clicked an ad. Typically, online publisher has user browsing interests and click feedbacks, while demand-side advertising platform…

Information Retrieval · Computer Science 2023-05-16 Penghui Wei , Hongjian Dou , Shaoguo Liu , Rongjun Tang , Li Liu , Liang Wang , Bo Zheng

Large genomic datasets are now created through numerous activities, including recreational genealogical investigations, biomedical research, and clinical care. At the same time, genomic data has become valuable for reuse beyond their…

Cryptography and Security · Computer Science 2021-12-28 Rajagopal Venkatesaramani , Zhiyu Wan , Bradley A. Malin , Yevgeniy Vorobeychik

The fundamental conflict between the enormous space of adaptive streaming videos and the limited capacity for subjective experiment casts significant challenges to objective Quality-of-Experience (QoE) prediction. Existing objective QoE…

Multimedia · Computer Science 2019-11-20 Zhengfang Duanmu , Wentao Liu , Diqi Chen , Zhuoran Li , Zhou Wang , Yizhou Wang , Wen Gao

Livestreaming often involves interactions between streamers and objects, which is critical for understanding and regulating web content. While human-object interaction (HOI) detection has made some progress in general-purpose video…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Menghui Zhang , Jing Zhang , Lin Chen , Li Zhuo

This paper uses a crowdsourced dataset of online video streaming sessions to investigate opportunities to reduce the power consumption while considering QoE. For this, we base our work on prior studies which model both the end-user's QoE…

Image and Video Processing · Electrical Eng. & Systems 2023-05-25 Christian Herglotz , Werner Robitza , Alexander Raake , Tobias Hossfeld , André Kaup

Coordination of view coverage via privacy-aware smart cameras is key to a more socially responsible urban intelligence. Rather than maximizing view coverage at any cost or over relying on expensive cryptographic techniques, we address how…

Cryptography and Security · Computer Science 2026-03-25 Chuhao Qin , Lukas Esterle , Evangelos Pournaras

The widespread deployment of surveillance cameras for facial recognition gives rise to many privacy concerns. This study proposes a privacy-friendly alternative to large scale facial recognition. While there are multiple techniques to…

Computer Vision and Pattern Recognition · Computer Science 2021-01-28 Mattijs Baert , Sam Leroux , Pieter Simoens

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

Recent years have witnessed remarkable progress in developing Vision-Language Models (VLMs) capable of processing both textual and visual inputs. These models have demonstrated impressive performance, leading to their widespread adoption in…

Image and Video Processing · Electrical Eng. & Systems 2025-07-15 Hanene F. Z. Brachemi Meftah , Wassim Hamidouche , Sid Ahmed Fezza , Olivier Déforges