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Accurately detecting and tracking pedestrians in 3D space is challenging due to large variations in rotations, poses and scales. The situation becomes even worse for dense crowds with severe occlusions. However, existing benchmarks either…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Peishan Cong , Xinge Zhu , Feng Qiao , Yiming Ren , Xidong Peng , Yuenan Hou , Lan Xu , Ruigang Yang , Dinesh Manocha , Yuexin Ma

Privacy and security in Smart Cities remain at constant risk due to the vulnerabilities introduced by Internet of Things (IoT) devices. The limited computational resources of these devices make them especially susceptible to attacks, while…

Cryptography and Security · Computer Science 2025-10-03 Andrés F. Betancur-López

Indoor localization has recently witnessed an increase in interest, due to the potential wide range of services it can provide by leveraging Internet of Things (IoT), and ubiquitous connectivity. Different techniques, wireless technologies…

Networking and Internet Architecture · Computer Science 2019-01-18 Faheem Zafari , Athanasios Gkelias , Kin Leung

In Internet of Things (IoT) driven smart-world systems, real-time crowd-sourced databases from multiple distributed servers can be aggregated to extract dynamic statistics from a larger population, thus providing more reliable knowledge for…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-04-04 Xuebin Ren , Chia-Mu Yu , Wei Yu , Xinyu Yang , Jun Zhao , Shusen Yang

Physical retailers, who once led the way in tracking with loyalty cards and `reverse appends', now lag behind online competitors. Yet we might be seeing these tables turn, as many increasingly deploy technologies ranging from simple sensors…

Computers and Society · Computer Science 2018-07-17 Vasilios Mavroudis , Michael Veale

Drone-based crowd tracking faces difficulties in accurately identifying and monitoring objects from an aerial perspective, largely due to their small size and close proximity to each other, which complicates both localization and tracking.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-29 Yi Lei , Huilin Zhu , Jingling Yuan , Guangli Xiang , Xian Zhong , Shengfeng He

Recent years have witnessed the rapid proliferation of backscatter technologies that realize the ubiquitous and long-term connectivity to empower smart cities and smart homes. Localizing such backscatter tags is crucial for IoT-based smart…

Signal Processing · Electrical Eng. & Systems 2020-05-28 Shengkai Zhang , Wei Wang , Sheyang Tang , Shi Jin , Tao Jiang

To fight against infectious diseases (e.g., SARS, COVID-19, Ebola, etc.), government agencies, technology companies and health institutes have launched various contact tracing approaches to identify and notify the people exposed to…

Cryptography and Security · Computer Science 2022-10-06 Teng Li , Siwei Yin , Runze Yu , Yebo Feng , Lei Jiao , Yulong Shen , Jianfeng Ma

A novel technique is proposed to optimize energy efficiency for wireless networks based on hierarchical mobile clustering. The new bi-level clustering technique minimizes mutual interference and energy consumption in large-scale tracking…

Computers and Society · Computer Science 2019-02-11 Uthman Baroudi , Abdulrahman Abu Elkhail , Hesham Alfares

A popular and affordable option to provide room-scale human behaviour tracking is to rely on commodity RGB-D sensors %todo: such as the Kinect family of devices? as such devices offer body tracking capabilities at a reasonable price point.…

Human-Computer Interaction · Computer Science 2024-09-24 Adrien Coppens , Valérie Maquil

Bluetooth has become critical as many IoT devices are arriving in the market. Most of the current literature focusing on Bluetooth simulation concentrates on the network protocols' performances and completely neglects the privacy protection…

Cryptography and Security · Computer Science 2021-02-05 Abhishek Kumar Mishra , Aline Carneiro Viana , Nadjib Achir

Full body trackers are utilized for surveillance and security purposes, such as person-tracking robots. In the Middle East, uniform crowd environments are the norm which challenges state-of-the-art trackers. Despite tremendous improvements…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Zhibo Zhang , Omar Alremeithi , Maryam Almheiri , Marwa Albeshr , Xiaoxiong Zhang , Sajid Javed , Naoufel Werghi

Nowadays, crowd sensing becomes increasingly more popular due to the ubiquitous usage of mobile devices. However, the quality of such human-generated sensory data varies significantly among different users. To better utilize sensory data,…

Cryptography and Security · Computer Science 2018-10-12 Yaliang Li , Houping Xiao , Zhan Qin , Chenglin Miao , Lu Su , Jing Gao , Kui Ren , Bolin Ding

Contemporary urban environments are in prompt need of means for intelligent decision-making, where a crucial role belongs to smart video surveillance systems. While existing deployments of stationary monitoring cameras already deliver…

Networking and Internet Architecture · Computer Science 2018-06-26 Vitaly Petrov , Sergey Andreev , Mario Gerla , Yevgeni Koucheryavy

When surfing the Internet, individuals leak personal and corporate information to third parties whose (legitimate or not) businesses revolve around the value of collected data. The implications are serious, from a person unwillingly…

Computers and Society · Computer Science 2015-02-26 Hassan Metwalley , Stefano Traverso , Marco Mellia , Stanislav Miskovic , Mario Baldi

Bluetooth is a short-range wireless technology that provides audio and data links between personal smartphones and playback devices, such as speakers, headsets and car entertainment systems. Since its introduction in 2001, security…

Cryptography and Security · Computer Science 2020-02-17 Ian Lowe , William J Buchanan , Richard J Macfarlane , Owen Lo

Crowd management relies on inspection of surveillance video either by operators or by object detection models. These models are large, making it difficult to deploy them on resource constrained edge hardware. Instead, the computations are…

Computer Vision and Pattern Recognition · Computer Science 2021-10-29 Sander De Coninck , Sam Leroux , Pieter Simoens

Contact tracing has been considered as an effective measure to limit the transmission of infectious disease such as COVID-19. Trajectory-based contact tracing compares the trajectories of users with the patients, and allows the tracing of…

Databases · Computer Science 2023-03-07 Maocheng Li , Yuxiang Zeng , Libin Zheng , Lei Chen , Qing Li

In a world where data is the new currency, wearable health devices offer unprecedented insights into daily life, continuously monitoring vital signs and metrics. However, this convenience raises privacy concerns, as these devices collect…

Cryptography and Security · Computer Science 2025-12-04 Karthik Barma

Wearable devices like smartwatches, wristbands, and fitness trackers are designed to be lightweight devices to be worn on the human body. With the increased connectivity of wearable devices, they will become integral to remote healthcare…

Cryptography and Security · Computer Science 2024-10-11 Andric Li , Grace Luo , Christopher Tao , Diego Zuluaga