Results 81 to 90 of about 29,335 (280)

Optical camera communication for active marker identification in camera-based positioning systems

, 2022
S.93-98Outside-in camera-based localization systems determine the position of mobile objects (with markers attached to them) by observing a tracking area with multiple camera anchors.
Mutschler, C., Gorse, L., Löffler, C., Philippsen, M.   +3 more
core   +1 more source

Facet‐Specific PbS Quantum Dot Passivation Using Halide Perovskites for SWIR Photodetectors

Advanced Materials Interfaces, EarlyView.
PbS quantum dots (QDs) are emerging as powerful short‐wave infrared photodetectors, yet the passivation mechanism of large QDs by perovskites ‐ critical for their stability ‐ remains unexplained. Here, we unveil the ligand structure of CH3NH3PbI3 (MAPI)‐passivated 4‐nm PbS QDs using FTIR, XPS, SEM, NMR, and DFT.
L. Paillardet, M. Gromova, D. Liu, A. S. Vasenko, O. V. Prezhdo, S. Alarab, G. De Paëpe, G. Lefevre, S. Charlot, O. Gourhant, B. Mortini, P. Reiss, J.‐M. Verilhac, D. Aldakov   +13 more
wiley   +1 more source

Circumventing LoS blocking in beam-steered optical wireless systems with real-time tracking and handover [PDF]

, 2020
This paper demonstrates a real-time user tracking and handover mechanism for indoor ultrahigh-speed beam-steered optical-wireless systems implementing a low-cost camera.
Huijskens, Frans M., Tangdiongga, Eduward, Pham, Ngoc, Tangdiongga, E Eduward, Mefleh, Ali, Mekonnen, KA Ketemaw, Koonen, AMJ Ton, Tangdiongga, Eduward; id_orcid, Huijskens, Frans M, Mekonnen, Ketemaw A., Koonen, A.M.J. (Ton)   +10 more
core  

Discovering and Tracking-based Detection System for Optical Camera Communication

, 2020
Detecting the transmitting source within a frame is fundamental in Optical Camera Communications (OCC). Until now, the detection techniques used today are discovery techniques, that is, in each frame or set of frames, the source is detected unequivocally.
Cristo Jurado-Verdu, Mederos Barrera,Antonio, Jurado Verdú, Cristo Manuel, Guerra, Victor, Jose Rabadan, Rabadán, José A., Victor Guerra, Antonio Mederos-Barrera, Rafael Perez-Jimenez, Perez-Jimenez, Rafael   +9 more
core   +1 more source

Undersampled-Based Modulation Schemes for Optical Camera Communications [PDF]

IEEE Communications Magazine, 2018
Widespread use of white light-emitting diodes and ubiquitous smart devices offer the opportunity to establish VLC, which has become a hot research topic based on the growing number of publications over the last decade. Camera-based VLC, namely OCC, provides many unique features when compared to a single-photodiode-based system, such as the ability to ...
Pengfei Luo, Min Zhang 0016, Zabih Ghassemlooy, Stanislav Zvanovec, Shulan Feng, Philipp Zhang   +5 more
openaire   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Experimental characterization of sub-pixel underwater optical camera communications

, 2022
Underwater Wireless Optical Communication (UWOC) is a promising technology to enable underwater communications for exploring and monitoring marine activities due to its high bandwidth and low latency. Furthermore, underwater optical camera communication (
Jurado-Verdu, Cristo, Guerra, Victor, Matus, Vicente, Rabadán, José A., Rufo, Julio, Majlesein, Behnaz   +5 more
core   +1 more source

Undersampled Pulse Width Modulation for Optical Camera Communications [PDF]

2018 IEEE International Conference on Communications Workshops (ICC Workshops), 2018
An undersampled pulse width modulation (UPWM) scheme is proposed to enable users to establish a non-flickering optical camera communications (OCC) link. With UPWM, only a digital light emitting diode (LED) driver is needed to send signals using a higher order modulation.
Pengfei Luo, Tong Jiang, Paul Anthony Haigh, Zabih Ghassemlooy, Stanislav Zvanovec   +4 more
openaire   +1 more source

Adaptive spatial-temporal resolution optical vehicular communication system using image sensor

International Journal of Distributed Sensor Networks, 2017
In this article, we introduce an image sensor–based optical vehicular communication system for performing vehicular condition resolution adaptively in the spatial domain and the temporal domain.
Amirul Islam, Md. Tanvir Hossan, Trang Nguyen, Yeong Min Jang   +3 more
doaj   +1 more source

Recent Advances of Slip Sensors for Smart Robotics

Advanced Materials Technologies, EarlyView.
This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang, Liao Wu, Shuai He, Zhao Sha, Yuwan Huang, Shuying Wu, Dewei Chu, Chun H. Wang, Shuhua Peng   +8 more
wiley   +1 more source