Results 41 to 50 of about 107,679 (337)

Tree Species Classification of the UNESCO Man and the Biosphere Karkonoski National Park (Poland) Using Artificial Neural Networks and APEX Hyperspectral Images

Remote Sensing, 2018
Knowledge of tree species composition is obligatory in forest management. Accurate tree species maps allow for detailed analysis of a forest ecosystem and its interactions with the environment. The research presented here focused on developing methods of
Edwin Raczko, Bogdan Zagajewski
doaj   +1 more source

Comparison on quantitative inversion of characteristic ions in salinized soils with hyperspectral based on support vector regression and partial least squares regression

European Journal of Remote Sensing, 2020
This study aimed to investigate quantitative inversion of salt ions. Now, most research on hyperspectral characters in salinized soils focus on quantitative inversion of salt content, but few on ions.
Jingyi Wang, Xiaoming Li
doaj   +1 more source

Formation of an informative index for recognizing specified objects in hyperspectral data

Компьютерная оптика, 2021
The paper is about the development of an approach which able to create rules for distinguish-ing between specified objects of hyperspectral data using a small number of observations.
R.A. Paringer , A.V. Mukhin, A.V. Kupriyanov   +2 more
doaj   +1 more source

Multilayer Structured NMF for Spectral Unmixing of Hyperspectral Images

, 2015
One of the challenges in hyperspectral data analysis is the presence of mixed pixels. Mixed pixels are the result of low spatial resolution of hyperspectral sensors. Spectral unmixing methods decompose a mixed pixel into a set of endmembers and abundance
Ghassemian, Hassan, Rajabi, Roozbeh
core   +1 more source

High-resolution cathodoluminescence hyperspectral imaging of nitride nanostructures [PDF]

, 2012
Hyperspectral cathodoluminescence imaging provides spectrally and spatially resolved information on luminescent materials within a single dataset. Pushing the technique toward its ultimate nanoscale spatial limit, while at the same time spectrally ...
Chaowang Liu, Duncan Allsopp, Jochen Bruckbauer, Lethy Krishnan Jagadamma, Norman, Paul R. Edwards, Philip Shields, Press, Robert W. Martin, Tao Wang   +9 more
core   +1 more source

Near‐Infrared Emitting Lanthanide Catecholate Giant Single Crystals – Morphology Control and Photon Down‐Conversion

Advanced Functional Materials, EarlyView.
Controlled syntheses of lanthanide coordination polymers based on the dihydroxybenzoquinone (DHBQ) organic linker afforded large single crystals of Ln‐DHBQ CPs (Ln = Yb, Nd). A novel structural variant of Yb‐DHBQ is identified by means of single crystal diffraction analysis.
Marina I. Schönherr, Alexander Biewald, Andre Mähringer, Thaddäus J. Koller, Peter Mayer, Markus Döblinger, Achim Hartschuh, Dana D. Medina   +7 more
wiley   +1 more source

Airborne Spectral Reflectance Dataset of Submerged Plastic Targets in a Coastal Environment

Data, 2023
Among the emerging applications of remote sensing technologies, the remote detection of plastic litter has observed successful applications in recent years.
Apostolos Papakonstantinou, Argyrios Moustakas, Polychronis Kolokoussis, Dimitris Papageorgiou, Robin de Vries, Konstantinos Topouzelis   +5 more
doaj   +1 more source

Gradients in urban material composition: A new concept to map cities with spaceborne imaging spectroscopy data [PDF]

, 2019
To understand processes in urban environments, such as urban energy fluxes or surface temperature patterns, it is important to map urban surface materials. Airborne imaging spectroscopy data have been successfully used to identify urban surface materials
Feilhauer, Hannes, Heiden, Uta, Jilge, Marianne, Neumann, Carsten   +3 more
core   +2 more sources

GeAl2‐2xFe2xO3(OH)4 Nanotubes: New Electrocatalyst for Oxygen Evolution Reaction

Advanced Functional Materials, EarlyView.
Fe‐doped imogolite nanotubes are synthesized via a one‐step hydrothermal method with varying Fe substitution ratios x. Structural and spectroscopic analyses confirm homogeneous Fe incorporation while preserving tubular shape. Optimal doping at x = 0.05 enhances optical absorption, narrows band gap, reduces charge transfer resistance, and significantly ...
Yassine Naciri, Jian Li, Wahid Ullah, Fabien Baron, Franck Bourdelle, Stéphan Rouzière, Claire Goldmann, Erik Elkaim, Thomas Bizien, Rachid Belkhou, Delphine Vantelon, Mohamed Nawfal Ghazzal, Erwan Paineau   +12 more
wiley   +1 more source

On-Orbit Performance and Hyperspectral Data Processing of the TIRSAT CubeSat Mission

Remote Sensing
A miniaturized hyperspectral camera, developed by integrating a linear variable band-pass filter (LVBPF) with an image sensor, was installed on the TIRSAT 3U CubeSat, launched on 17 February 2024 by Japan’s H3 launch vehicle.
Yoshihide Aoyanagi, Tomofumi Doi, Hajime Arai, Yoshihisa Shimada, Masakazu Yasuda, Takahiro Yamazaki, Hiroshi Sawazaki   +6 more
doaj   +1 more source