Results 41 to 50 of about 124,142 (120)

Mosaicing of multiplanar regions through autonomous navigation of off-the-shelf quadcopter

IET Cyber-systems and Robotics, 2019
The real world is made up of multiplanar and curved surfaces. Imaging such surfaces with an orthographic view using a handheld camera is tiring if the scene encompasses a view larger than the camera field of view.
Meghshyam G. Prasad, Sona Praneeth Akula, Anirudh Vemula, Sharat Chandran   +3 more
doaj   +1 more source

Sensor for Distance Measurement Using Pixel Grey-Level Information

Sensors, 2009
An alternative method for distance measurement is presented, based on a radiometric approach to the image formation process. The proposed methodology uses images from an infrared emitting diode (IRED) to estimate the distance between the camera and the ...
Yamilet Pompa, Pedro R. Fernández, Angel E. Cano, José L. Lázaro   +3 more
doaj   +1 more source

Direct comparison of herpetofaunal camera, pitfall, and funnel trapping in the upland habitats of Florida, USA

Wildlife Society Bulletin
Determining the best method to survey species of interest is critical for successful field research projects. When sampling herpetofauna, pitfall and funnel trapping allow a researcher to examine multiple individuals but require considerable field effort
Tiffany M. Doan
doaj   +1 more source

Web service with machine learning model for airspace monitoring

Вестник Дагестанского государственного технического университета: Технические науки
Objective. The goal is to develop a web service for detecting aerial objects that detects a flying object, highlights it in an image and classifies it as a threat, since modern aerial object detection systems do not always cope with the task of detecting
A. D. Popov
doaj   +1 more source

A Survey of the Multi-Sensor Fusion Object Detection Task in Autonomous Driving

Sensors
Multi-sensor fusion object detection is an advanced method that improves object recognition and tracking accuracy by integrating data from different types of sensors.
Hai Wang, Junhao Liu, Haoran Dong, Zheng Shao   +3 more
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Effect of Selected Optical Navigation Methods on the Energy Consumption of Automated Guided Vehicles

Applied Sciences
The study compares the performance parameters of an Automated Guided Vehicle (AGV) equipped with optical navigation, focusing on two solutions: one utilizing reflective optocouplers and the other employing a camera. These components, commonly used in AGV
Krzysztof Balawender, Artur Jaworski, Mirosław Jakubowski, Hubert Kuszewski   +3 more
doaj   +1 more source

Experimental Demonstration of 32‐PAM Optical Camera Communication Using a Low Cost and a High Cost Camera

IET Optoelectronics
This work demonstrates experimentally the feasibility of using up to 32‐PAM in rolling shutter based optical camera communication (OCC). Two different cameras have been used for OCC performance comparison, namely, a low‐cost Pi Camera V2.1 and a higher ...
Miguel Rêgo, Alexis A. Dowhuszko, Pedro Fonseca, Luís Nero Alves   +3 more
doaj   +1 more source

First wall particle fluxes and Be erosion in high-performance JET-ITER baseline plasmas

Nuclear Fusion
In next step large fusion devices with a tungsten (W) first wall such as ITER, impurity control will be a challenge to avoid strong core radiation from highly ionised metals.
E. de la Cal, C. Giroud, H. Kumpulainen, J. Romazanov, I. Balboa, S. Silburn, P. Carvalho, J. Karhunen, B. Thomas, A. Tookey, P. Innocente, D. Keeling, D.B. King, E. Pawelec, L. Frassinetti, A. Hakola, B. Labit, E. Tsitrone, N. Vianello, S. Wiesen, JET Contributors, the EUROfusion Tokamak Exploitation Team   +21 more
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Absolute velocity estimation of UAVs based on phase correlation and monocular vision in unknown GNSS‐denied environments

IET Image Processing
This paper proposes a novel approach for absolute velocity estimation of unmanned aerial vehicles in unknown and unmapped GNSS‐denied environments. The proposed method leverages the advantages of Fourier‐based image phase correlation and utilizes off‐the‐
Heng Deng, Duhao Li, Boyang Shen, Zhiyao Zhao, Usman Arif   +4 more
doaj   +1 more source

Particle fluxes and gross erosion at limiters in JET low-confinement mode plasmas measured with visible cameras

Nuclear Fusion
Deuterium (D) and beryllium (Be) fluxes are obtained in JET Low-confinement mode (L-mode) plasmas at the outer limiters of the first wall using calibrated visible cameras. They are inferred from the measured radiances using the spectroscopic S/XB method.
E. de la Cal, E.R. Solano, I. Balboa, S. Silburn, E. Pawelec, J. Romazanov, P. Carvalho, J. Karhunen, A. Tookey, S. Bakes, R. Chapman, J. Foster, A. Gonzalez, J. Maddock, J. Matthews, E. Pinto, I. Voldiner, L. Xiang, Y. Zayachuk, JET Contributors   +19 more
doaj   +1 more source