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Sixth-Generation (6G) wireless networks aim to support innovative Internet-of-Things (IoT) applications that demand faster and more secure data transmission. While higher Open Systems Interconnection (OSI) layers employ measures like…

Signal Processing · Electrical Eng. & Systems 2025-06-30 Dimitris Kompostiotis , Dimitris Vordonis , Vassilis Paliouras , George C. Alexandropoulos

This work introduces PAS -- Privacy Anchor Substitution, a structured mechanism for enabling user location privacy in spatial retrieval-augmented generation (RAG) systems. Unlike conventional differential privacy methods that directly…

Cryptography and Security · Computer Science 2026-05-08 Kennedy Edemacu , Mohammad Mahdi Shokri , Vinay M. Shashidhar , Jong Wook Kim

Real-time 3D object detection from point clouds is essential for dynamic scene understanding in applications such as augmented reality, robotics and navigation. We introduce a novel Spatial-prioritized and Rank-aware 3D object detection…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Chenyu Zhao , Xianwei Zheng , Zimin Xia , Linwei Yue , Nan Xue

Since Internet of Things (IoT) is suggested as the fundamental platform to adapt massive connections and secure transmission, we study physical-layer authentication in the point-to-point wireless systems relying on reconfigurable…

Signal Processing · Electrical Eng. & Systems 2022-05-30 Dinh-Thuan Do , Anh-Tu Le , Shahid Mumtaz

Reconfigurable intelligent surfaces (RISs) not only assist communication but also help the localization of user equipment (UE). This study focuses on the indoor localization of UE with a single access point (AP) aided by multiple RISs.…

Information Theory · Computer Science 2025-05-06 Xiyu Wang , Yixuan Huang , Jie Yang , Yu Han , Shi Jin

Efficient authentication is vital for IoT applications with stringent minimum-delay requirements (e.g., energy delivery systems). This requirement becomes even more crucial when the IoT devices are battery-powered, like small aerial drones,…

Cryptography and Security · Computer Science 2020-04-10 Rouzbeh Behnia , Muslum Ozgur Ozmen , Attila A. Yavuz

As intelligent sensing expands into high-privacy environments such as restrooms and changing rooms, the field faces a critical privacy-security paradox. Traditional RGB surveillance raises significant concerns regarding visual recording and…

Cryptography and Security · Computer Science 2026-02-02 Huan Song , Shuyu Tian , Junyi Hao , Cheng Yuan , Zhenyu Jia , Jiawei Shao , Xuelong Li

The safety and accessibility of our homes is critical to quality of life and evolves as we age, become ill, host guests, or experience life events such as having children. Researchers and health professionals have created assessment…

Human-Computer Interaction · Computer Science 2024-04-12 Xia Su , Han Zhang , Kaiming Cheng , Jaewook Lee , Qiaochu Liu , Wyatt Olson , Jon Froehlich

We present INDOOR-LIDAR, a comprehensive hybrid dataset of indoor 3D LiDAR point clouds designed to advance research in robot perception. Existing indoor LiDAR datasets often suffer from limited scale, inconsistent annotation formats, and…

Robotics · Computer Science 2025-12-16 Haichuan Li , Changda Tian , Panos Trahanias , Tomi Westerlund

In intelligent building management, knowing the number of people and their location in a room are important for better control of its illumination, ventilation, and heating with reduced costs and improved comfort. This is typically achieved…

Computer Vision and Pattern Recognition · Computer Science 2022-09-26 Thomas Dubail , Fidel Alejandro Guerrero Peña , Heitor Rapela Medeiros , Masih Aminbeidokhti , Eric Granger , Marco Pedersoli

In depth-sensing applications ranging from home robotics to AR/VR, it will be common to acquire 3D scans of interior spaces repeatedly at sparse time intervals (e.g., as part of regular daily use). We propose an algorithm that analyzes…

Computer Vision and Pattern Recognition · Computer Science 2019-09-26 Maciej Halber , Yifei Shi , Kai Xu , Thomas Funkhouser

The reliable detection of unauthorized individuals in safety-critical industrial indoor spaces is crucial to avoid plant shutdowns, property damage, and personal hazards. Conventional vision-based methods that use deep-learning approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Dennis Basile , Dennis Sprute , Helene Dörksen , Holger Flatt

Person re-ID matches persons across multiple non-overlapping cameras. Despite the increasing deployment of airborne platforms in surveillance, current existing person re-ID benchmarks' focus is on ground-ground matching and very limited…

Computer Vision and Pattern Recognition · Computer Science 2023-08-15 Huy Nguyen , Kien Nguyen , Sridha Sridharan , Clinton Fookes

Point cloud registration is a popular topic which has been widely used in 3D model reconstruction, location, and retrieval. In this paper, we propose a new registration method, KSS-ICP, to address the rigid registration task in Kendall…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Chenlei Lv , Weisi Lin , Baoquan Zhao

With the advent of large-scale heterogeneous networks comes the problem of unified network control resulting in security lapses that could have otherwise avoided. A mechanism is needed to detect and deflect intruders to safeguard resource…

Cryptography and Security · Computer Science 2018-11-13 Nazim Uddin Sheikh , Hasina Rahman , Shashwat Vikram , Hamed AlQahtani

Reconstructing a layout of indoor spaces has been a crucial part of growing indoor location based services. One of the key challenges in the proliferation of indoor location based services is the unavailability of indoor spatial maps due to…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Md. Tareq Mahmood , Mohammed Eunus Ali

The rise of the Internet of Things (IoT) and mobile internet applications has spurred interest in location-based services (LBS) for commercial, military, and social applications. While the global positioning system (GPS) dominates outdoor…

Machine Learning · Computer Science 2024-02-20 M. W. P. Maduranga

We present AEGIS-Net, a novel indoor place recognition model that takes in RGB point clouds and generates global place descriptors by aggregating lower-level color, geometry features and higher-level implicit semantic features. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-18 Yuhang Ming , Jian Ma , Xingrui Yang , Weichen Dai , Yong Peng , Wanzeng Kong

A Reconfigurable Intelligent Surface (RIS) can significantly enhance network positioning and mapping, acting as an additional anchor point in the reference system and improving signal strength and measurement diversity through the…

Information Theory · Computer Science 2024-11-15 Dimitris Kompostiotis , Dimitris Vordonis , Vassilis Paliouras , George C. Alexandropoulos , Florin Grec

High-capacity image steganography, aimed at concealing a secret image in a cover image, is a technique to preserve sensitive data, e.g., faces and fingerprints. Previous methods focus on the security during transmission and subsequently run…

Computer Vision and Pattern Recognition · Computer Science 2021-07-14 Jiabao Cui , Pengyi Zhang , Songyuan Li , Liangli Zheng , Cuizhu Bao , Jupeng Xia , Xi Li