Results 91 to 100 of about 1,316,422 (315)

Development of a gimbal for the Parrot Sequoia multispectral camera for the UAV DJI Phantom 4 Pro

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Crop monitoring with air monitoring tools on the basis different types of unmanned aerial vehicles with a payload allows to identify problem areas in the field and make timely management decisions.
R. Kurbanov, M. Litvinov
semanticscholar   +1 more source

AI‐Enabled RGB Light‐to‐Frequency Sensor for Nondestructive Salinity Stress Monitoring in Medicinal Plants

open access: yesAdvanced Intelligent Systems, EarlyView.
A distributed wireless sensing framework enables noninvasive monitoring of plant salinity stress through leaf reflectance measurements acquired with portable optical sensors. The collected data are processed using TinyML‐based neural network models deployed at the edge, enabling accurate, real‐time, and low‐cost classification of salinity levels, while
Ali Ahmad   +4 more
wiley   +1 more source

Lookup Table Approach for Radiometric Calibration of Miniaturized Multispectral Camera Mounted on an Unmanned Aerial Vehicle

open access: yesRemote Sensing, 2020
Over recent years, miniaturized multispectral cameras mounted on an unmanned aerial vehicle (UAV) have been widely used in remote sensing. Most of these cameras are integrated with low-cost, image-frame complementary metal-oxide semiconductor (CMOS ...
Hongtao Cao   +4 more
semanticscholar   +1 more source

A Distributed Multirobot Architecture for Decoupled Inspection and Localized Treatment in Precision Agriculture

open access: yesAdvanced Intelligent Systems, EarlyView.
A distributed multirobot architecture enables asynchronous vineyard inspection and localized treatment through a cloud‐based mission control center. Real‐world validation demonstrates reliable coordination of heterogeneous robots, accurate disease detection, and effective conversion of georeferenced observations into targeted treatment actions ...
José M. Bengochea‐Guevara   +7 more
wiley   +1 more source

Modified spectral ratio method for distant measurement of temperature distribution by multispectral video cameras

open access: yesКомпьютерная оптика
This paper describes a new method for remote measurements of the temperature distribution without knowledge of the emissivity using multispectral cameras.
K.M. Bulatov, P.V. Zinin, N.A. Khramov
doaj   +1 more source

Multispectral image dissector camera flight test [PDF]

open access: yes, 1973
It was demonstrated that the multispectral image dissector camera is able to provide composite pictures of the earth surface from high altitude overflights.
Johnson, B. L.
core  

Performance Evaluation of Super‐Resolution Techniques for Characterization and Phenotyping of Commodity Crops Using Multispectral Imagery

open access: yesAdvanced Intelligent Systems, EarlyView.
This study assesses the suitability and performance of single‐image super‐resolution methods when applied directly, and without any fine‐tuning, to multispectral images of maize and sunflower crops. It evaluates not only super‐resolution performance, but also the preservation of spectral integrity and vegetation‐index reliability. Multispectral imagery
Abhiram Karukayil   +4 more
wiley   +1 more source

Production of Andropogon gayanus cv. Planaltina dry matter estimated through NDVI

open access: yesRevista Agrogeoambiental, 2020
Pasture management studies seldom use remote sensing, especially for Andropogon gayanus cv. Planaltina. This work aimed to investigate whether a single-chip digital camera converted into multispectral equipment could measure and perceive differences in ...
João Lucas Aires Dias   +4 more
doaj   +1 more source

EVALUATION OF THE RADIOMETRIC ACCURACY OF IMAGES OBTAINED BY A SEQUOIA MULTISPECTRAL CAMERA

open access: yesEngenharia Agrícola, 2020
Geometric and radiometric corrections of images obtained by remotely piloted aircraft systems (RPAS) are required for the measurement of the spectral reflectance and calculation of vegetation indices.
A. D. S. Teixeira   +4 more
semanticscholar   +1 more source

Scale‐space image analysis for mapping spotted knapweed in grassland ecosystems

open access: yesApplications in Plant Sciences, EarlyView.
Abstract Premise This study investigates the value of scale‐space representations of spatial features for the identification and mapping of invasive plants using high‐resolution multispectral imagery. Scale‐space representations combine the two‐dimensional spatial domain with a third dimension representing spatial scale, such that features can be ...
Shohreh Sahebi, David J. Hill
wiley   +1 more source

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