Results 21 to 30 of about 122,969 (120)

Frame recovery using multiple images in rolling shutter based systems

IET Optoelectronics, 2023
An algorithm for recovering transmitted static identifiers (IDs) in rolling shutter based Optical Camera Communication systems is proposed by the authors, considering a system comprised of a camera and a circular light source.
Miguel Rêgo, Joaquin Perez, Pedro Fonseca, Luís Nero Alves   +3 more
doaj   +1 more source

Secured Perimeter with Electromagnetic Detection and Tracking with Drone Embedded and Static Cameras

Sensors, 2021
Perimeter detection systems detect intruders penetrating protected areas, but modern solutions require the combination of smart detectors, information networks and controlling software to reduce false alarms and extend detection range.
Pedro Teixidó, Juan Antonio Gómez-Galán, Rafael Caballero, Francisco J. Pérez-Grau, José M. Hinojo-Montero, Fernando Muñoz-Chavero, Juan Aponte   +6 more
doaj   +1 more source

An Indoor Positioning Approach Based on Fusion of Cameras and Infrared Sensors

Sensors, 2019
A method for infrared and cameras sensor fusion, applied to indoor positioning in intelligent spaces, is proposed in this work. The fused position is obtained with a maximum likelihood estimator from infrared and camera independent observations. Specific
Ernesto Martín-Gorostiza, Miguel A. García-Garrido, Daniel Pizarro, David Salido-Monzú, Patricia Torres   +4 more
doaj   +1 more source

Performance enhancement of optical camera communication system using optical camera communication coding and region‐of‐interest detection

IET Optoelectronics, 2021
Optical camera communication (OCC) is considered an important transmission scheme in implementing indoor navigation, beacons, and other Internet of Things applications.
Duy Thong Nguyen, Youngil Park
doaj   +1 more source

Density of fishers and the efficacy of relative abundance indices and small‐scale occupancy estimation to detect a population decline on the Hoopa Valley Indian Reservation, California

Wildlife Society Bulletin, 2011
We used a mark–resight design to calculate density estimates of fisher (Martes pennanti), a candidate for listing under the United States Endangered Species Act, on the Hoopa Valley Indian Reservation in northwestern California, USA in order to determine
Sean M. Matthews, J. Mark Higley, J. Scott Yaeger, Todd K. Fuller   +3 more
doaj   +1 more source

Systems Engineering Baseline Concept of a Multispectral Drone Detection Solution for Airports

IEEE Access, 2017
The baseline concept for a multispectral drone detection (MSDD) system for use in airports is generated. The baseline development process is based on a modified system of systems architecting with ilities (SAI) method.
Rick L. Sturdivant, Edwin K. P. Chong
doaj   +1 more source

A High-Speed, Multi-Channel Lossless Compression Algorithm for High-Resolution Video on FPGA

IEEE Access
With the increasing image resolution, data bit depth, and frame rate of industrial cameras, the signal output speed needs to be improved to keep pace with the rapidly developing image sensor technologies.
Xingkai Du, Longhua Xie, Hongchuan Huang, Huawei Chen, Xiaolong Guo, Tingyu Zhao   +5 more
doaj   +1 more source

Spherical Robots for Special Purposes: A Review on Current Possibilities

Sensors, 2022
The review discusses the possibilities of different driving mechanisms and sensors of spherical robots, and a special kind of mobile robots is introduced and discussed.
Marek Bujňák, Rastislav Pirník, Karol Rástočný, Aleš Janota, Dušan Nemec, Pavol Kuchár, Tomáš Tichý, Zbigniew Łukasik   +7 more
doaj   +1 more source

Integration of CSI and Camera Image for Indoor Wireless Localization

IEEE Access
Research in integrated sensing and communications is advancing toward next-generation systems beyond 5G and 6G, with significant progress in highly accurate indoor localization methods, particularly those leveraging channel state information (CSI) and ...
Yoshihiko Tsuchiya, Norisato Suga, Kazunori Uruma, Masaya Fujisawa   +3 more
doaj   +1 more source

A comprehensive research on light field imaging: Theory and application

IET Computer Vision
Computational photography is a combination of novel optical designs and processing methods to capture high‐dimensional visual information. As an emerged promising technique, light field (LF) imaging measures the lighting, reflectance, focus, geometry and
Fei Liu, Yunlong Wang, Qing Yang, Shubo Zhou, Kunbo Zhang   +4 more
doaj   +1 more source