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Multi-sensor fusion significantly enhances the accuracy and robustness of 3D semantic occupancy prediction, which is crucial for autonomous driving and robotics. However, most existing approaches depend on high-resolution images and complex…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Zhen Yang , Yanpeng Dong , Jiayu Wang , Heng Wang , Lichao Ma , Zijian Cui , Qi Liu , Haoran Pei , Kexin Zhang , Chao Zhang

Human Activity Recognition (HAR) has been a popular research field due to the widespread of devices with sensors and computational power (e.g., smartphones and smartwatches). Applications for HAR systems have been extensively researched in…

Human-Computer Interaction · Computer Science 2023-08-28 Paulo J. S. Ferreira , João Mendes Moreira , João M. P. Cardoso

As people spend up to 87% of their time indoors, intelligent Heating, Ventilation, and Air Conditioning (HVAC) systems in buildings are essential for maintaining occupant comfort and reducing energy consumption. These HVAC systems in smart…

Systems and Control · Electrical Eng. & Systems 2021-08-09 Shichao Xu , Yangyang Fu , Yixuan Wang , Zheng O'Neill , Qi Zhu

Real-time parking occupancy information is valuable for guiding drivers' searching for parking spaces. Recently many parking detection systems using range-based on-vehicle sensors are invented, but they disregard the practical difficulty of…

Robotics · Computer Science 2016-11-17 Qi Luo , Romesh Saigal , Robert Hampshire , Xinyi Wu

The residential buildings sector is one of the largest electricity consumers worldwide and contributes disproportionally to peak electricity demand in many regions. Strongly driven by occupant activities at home, household energy…

Systems and Control · Electrical Eng. & Systems 2021-11-05 Jianli Chen , Rajendra Adhikari , Eric Wilson , Joseph Robertson , Anthony Fontanini , Ben Polly , Opeoluwa Olawale

Heating, Ventilation and Air Conditioning (HVAC) consumes a significant fraction of energy in commercial buildings. Hence, the use of optimization techniques to reduce HVAC energy consumption has been widely studied. Model predictive…

Systems and Control · Computer Science 2018-10-26 Milan Jain , Rachel K Kalaimani , Srinivasan Keshav , Catherine Rosenberg

This work presents, the classification of user activities such as Rest, Walk and Run, on the basis of frequency component present in the acceleration data in a wireless sensor network environment. As the frequencies of the above mentioned…

Neural and Evolutionary Computing · Computer Science 2011-07-25 Annapurna Sharma , Amit Purwar , Young-Dong Lee Young-Sook Lee Wan-Young Chung

With the rapid growth of sensor technology, smartphone sensing has become an effective approach to improve the quality of smartphone applications. However, due to time-varying wireless channels and lack of incentives for the users to…

Distributed, Parallel, and Cluster Computing · Computer Science 2016-08-02 Boya Di , Tianyu Wang , Lingyang Song , Zhu Han

It is envisioned that building systems will become active participants in the smart grid operation by controlling their energy consumption to optimize complex criteria beyond ensuring local end-use comfort satisfaction. A forecast of the…

Optimization and Control · Mathematics 2018-06-08 Soumya Kundu , Thiagarajan Ramachandran , Yan Chen , Draguna Vrabie

We consider human activity recognition (HAR) from wearable sensor data in manual-work processes, like warehouse order-picking. Such structured domains can often be partitioned into distinct process steps, e.g., packaging or transporting.…

Signal Processing · Electrical Eng. & Systems 2021-11-09 Stefan Lüdtke , Fernando Moya Rueda , Waqas Ahmed , Gernot A. Fink , Thomas Kirste

The use of wearable and mobile devices for health monitoring and activity recognition applications is increasing rapidly. These devices need to maximize their accuracy and active time under a tight energy budget imposed by battery and small…

Signal Processing · Electrical Eng. & Systems 2019-02-25 Ganapati Bhat , Kunal Bagewadi , Hyung Gyu Lee , Umit Y. Ogras

This paper considers the massive connectivity application in which a large number of potential devices communicate with a base-station (BS) in a sporadic fashion. The detection of device activity pattern together with the estimation of the…

Information Theory · Computer Science 2018-03-14 Zhilin Chen , Foad Sohrabi , Wei Yu

With the global population ageing, it is crucial to enable individuals to live independently and safely in their homes. Using ubiquitous sensors such as Passive InfraRed sensors (PIR) and door sensors is drawing increasing interest for…

Machine Learning · Computer Science 2026-01-21 Marina Vicini , Martin Rudorfer , Zhuangzhuang Dai , Luis J. Manso

Understanding the spatiotemporal distribution of people within a city is crucial to many planning applications. Obtaining data to create required knowledge, currently involves costly survey methods. At the same time ubiquitous mobile…

Machine Learning · Statistics 2012-07-06 Jameson L. Toole , Michael Ulm , Dietmar Bauer , Marta C. Gonzalez

Safe path planning is a crucial component in autonomous robotics. The many approaches to find a collision free path can be categorically divided into trajectory optimisers and sampling-based methods. When planning using occupancy maps, the…

Robotics · Computer Science 2017-03-02 Gilad Francis , Lionel Ott , Fabio Ramos

HVAC systems account for a significant portion of building energy use. Nighttime setback scheduling is an energy conservation measure where cooling and heating setpoints are increased and decreased respectively during unoccupied periods…

Systems and Control · Electrical Eng. & Systems 2022-08-12 Kingsley Nweye , Zoltan Nagy

Low-cost air quality sensors are becoming ubiquitous in our daily lives as public awareness of air pollution continues to grow, and people take measures to monitor and improve the air they breathe indoors. Besides the standard operation of…

Distributed, Parallel, and Cluster Computing · Computer Science 2026-05-12 Prasenjit Karmakar , Karthik Reddy , Sandip Chakraborty

In the past decade, the usage of mobile devices has gone far beyond simple activities like calling and texting. Today, smartphones contain multiple embedded sensors and are able to collect useful sensing data about the user and infer the…

Machine Learning · Computer Science 2019-03-14 Saar Tal , Bracha Shapira , Lior Rokach

Accurate 3D perception is essential for understanding the environment in autonomous driving. Recent advancements in 3D semantic occupancy prediction have leveraged camera-LiDAR fusion to improve robustness and accuracy. However, current…

Computer Vision and Pattern Recognition · Computer Science 2024-12-31 Minjae Seong , Jisong Kim , Geonho Bang , Hawook Jeong , Jun Won Choi

Unsupervised user adaptation aligns the feature distributions of the data from training users and the new user, so a well-trained wearable human activity recognition (WHAR) model can be well adapted to the new user. With the development of…

Signal Processing · Electrical Eng. & Systems 2022-04-28 Ling Chen , Yi Zhang , Shenghuan Miao , Sirou Zhu , Rong Hu , Liangying Peng , Mingqi Lv