Results 31 to 40 of about 7,830 (229)

VEGETATION MAPPING OF A COASTAL DUNE COMPLEX USING MULTISPECTRAL IMAGERY ACQUIRED FROM AN UNMANNED AERIAL SYSTEM [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Vegetation mapping, identifying the distribution of plant species, is important for analysing vegetation dynamics, quantifying spatial patterns of vegetation evolution, analysing the effects of environment changes on vegetation, and predicting spatial ...
C. Suo, E. McGovern, A. Gilmer
doaj   +1 more source

The Accuracy Differences of Using Unmanned Aerial Vehicle Images Monitoring Maize Plant Height at Different Growth Stages

open access: yes智慧农业, 2021
The digital elevation model (DEM) of maize population in field was constructed by using optical imaging equipment mounted on unmanned aerial vehicle (UAV) to study the accuracy difference of maize population height monitoring at different growth stages ...
YANG Jin   +8 more
doaj   +1 more source

Investigation and evaluation of algorithms for unmanned aerial vehicle multispectral image registration

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2021
Automatically registration of unmanned aerial vehicle (UAV) multispectral images is fundamental for subsequent applications. Although many studies exist for visible camera images and satellite multispectral image registration, studies for UAV are still ...
Lingxuan Meng   +6 more
doaj   +1 more source

Panoramic, Macro and Micro Multispectral Imaging: An Affordable System for Mapping Pigments on Artworks

open access: yesJournal of Conservation and Museum Studies, 2015
Multispectral imaging systems are used in art examinations to map and identify pigments, binders and areas of retouching. A monochromatic camera is combined with an appropriate wavelength selection system and acquires a variable ...
Antonino Cosentino
doaj   +3 more sources

Discrimination between Sedimentary Rocks from Close-Range Visible and Very-Near-Infrared Images. [PDF]

open access: yesPLoS ONE, 2015
Variation in the mineral composition of rocks results in a change of their spectral response capable of being studied by imaging spectroscopy. This paper proposes the use of a low-cost handy sensor, a calibrated visible-very near infrared (VIS-VNIR ...
Susana Del Pozo   +4 more
doaj   +1 more source

Multichannel Object Detection for Detecting Suspected Trees With Pine Wilt Disease Using Multispectral Drone Imagery

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In this article, a multichannel convolutional neural network (CNN) based object detection was used to detect suspected trees of pine wilt disease after acquiring aerial photographs through a rotorcraft drone equipped with a multispectral camera.
Hae Gwang Park   +3 more
doaj   +1 more source

Novel accuracy test for multispectral imaging systems based on ΔE measurements

open access: yesJournal of the European Optical Society-Rapid Publications, 2018
In the printing industry, multispectral line scan cameras are being applied with increasing frequency in print inspection. This field of application requires highly accurate camera systems. In this article, we describe a novel approach to determining the
Marcel Dierl   +5 more
doaj   +1 more source

Vision‐Augmented Wearable Interfaces: Bioinspired Approaches for Realistic AI‐Human‐Machine Interaction

open access: yesAdvanced Materials Technologies, EarlyView.
This review presents recent progress in vision‐augmented wearable interfaces that combine artificial vision, soft wearable sensors, and exoskeletal robots. Inspired by biological visual systems, these technologies enable multimodal perception and intelligent human–machine interaction.
Jihun Lee   +4 more
wiley   +1 more source

Fusion of Multispectral Imagery and Spectrometer Data in UAV Remote Sensing

open access: yesRemote Sensing, 2017
: High spatial resolution hyperspectral data often used in precision farming applications are not available from current satellite sensors, and difficult or expensive to acquire from standard aircraft. Alternatively, in precision farming, unmanned aerial
Chuiqing Zeng   +3 more
doaj   +1 more source

Neural Network Generalization: The Impact of Camera Parameters

open access: yesIEEE Access, 2020
We quantify the generalization of a convolutional neural network (CNN) trained to identify cars. First, we perform a series of experiments to train the network using one image dataset - either synthetic or from a camera - and then test on a different ...
Zhenyi Liu   +3 more
doaj   +1 more source

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