Results 11 to 20 of about 551,417 (339)
Hyperspectral Classification of Cyperus esculentus Clones and Morphologically Similar Weeds
Sensors, 2020 Cyperus esculentus (yellow nutsedge) is one of the world’s worst weeds as it can cause great damage to crops and crop production. To eradicate C. esculentus, early detection is key—a challenging task as it is often confused with other Cyperaceae and ...
Marlies Lauwers +4 more
doaj +1 more source
Isolation of viruses responsible for the demise of an Emiliania huxleyi bloom in the English Channel [PDF]
, 2002 This study used analytical flow cytometry (AFC) to monitor the abundance of phytoplankton, coccoliths, bacteria and viruses in a transect that crossed a high reflectance area in the western English Channel.
Cox, M. J. +5 more
core +1 more source
Drones, 2022 Remote sensing can provide useful imagery data to monitor sugarcane in the field, whether for precision management or high-throughput phenotyping (HTP).
Marcelo Rodrigues Barbosa Júnior +7 more
doaj +1 more source
, 2015 Undoing the image formation process and therefore decomposing appearance into its intrinsic properties is a challenging task due to the under-constraint nature of this inverse problem.
Fritz, Mario +4 more
core +3 more sources
Pepper Plants Leaf Spectral Reflectance Changes as a Result of Root Rot Damage
Remote Sensing, 2021 Symptoms of root stress are hard to detect using non-invasive tools. This study reveals proof of concept for vegetation indices’ ability, usually used to sense canopy status, to detect root stress, and performance status.
Shahar Weksler +5 more
doaj +1 more source
Highly Accurate Determination of Heterogeneously Stacked Van-der-Waals Materials by Optical Microspectroscopy [PDF]
, 2020 The composition of Van-der-Waals heterostructures is conclusively determined using a hybrid evaluation scheme of data acquired by optical microspectroscopy. This scheme deploys a parameter set comprising both change in reflectance and wavelength shift of
Fritsch, Birk +4 more
core +3 more sources
Calibration of BRDF Based on the Field Goniometer System Using a UAV Multispectral Camera
Sensors, 2022 The bidirectional reflectance distribution function (BRDF) is important for estimating the physical properties of a surface in remote sensing. In the laboratory, the BRDF can be estimated quickly and accurately using a goniometer, but it is very ...
Minji Kim +5 more
doaj +1 more source
A Novel 3D Topography Stitching Algorithm Based on Reflectance and Multimap
Applied Sciences, 2023 Surface topography is an efficient tool for the understanding of physical phenomena, especially if multiscale roughness analysis is performed. However, the observable scale range in a topography measured with 3D optical profilometers is quite limited ...
Julie Lemesle +2 more
doaj +1 more source
In Situ Photoacoustic Study of Optical Properties of P-Type (111) Porous Silicon Thin Films
Nanomaterials, 2021 Porous silicon (PSi) on p++-type (111) silicon substrate has been fabricated by electronically etching method in hydrofluoric acid (HF) media from 5 to 110 mA/cm2 of anodizing current density.
Cristian Felipe Ramirez-Gutierrez +4 more
doaj +1 more source
FReD: The floral reflectance spectra database [PDF]
, 2008 Floral reflectance measurements are of great value to researchers who need consider the real colour of flowers, for example in the context of how the flowers appear to their pollinators.
Lars Chittka +2 more
core +2 more sources