Results 31 to 40 of about 11,195 (191)

Customizing kernel functions for SVM-based hyperspectral image classification [PDF]

open access: yes, 2008
Previous research applying kernel methods such as support vector machines (SVMs) to hyperspectral image classification has achieved performance competitive with the best available algorithms.
Baofeng Guo   +4 more
core   +2 more sources

A Blind Spectral Unmixing in Wavelet Domain

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In this article, a wavelet-based energy minimization framework is developed for joint estimation of endmembers and abundances without assuming pure pixels while considering noisy scenario.
Vijayashekhar S S, Jignesh S. Bhatt
doaj   +1 more source

Quality assessment of Airborne Image Spectrometry Data for the AVIRIS-4 [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The AVIRIS-4 is a state of the art imaging spectrometer developed by NASA-JPL for the consortium of Swiss universities ARES. Measurement campaigns using this instrument started in 2024.
L. V. Jospin, J. Lahaye, J. Skaloud
doaj   +1 more source

Compressive Hyperspectral Imaging Using Progressive Total Variation [PDF]

open access: yes, 2014
Compressed Sensing (CS) is suitable for remote acquisition of hyperspectral images for earth observation, since it could exploit the strong spatial and spectral correlations, llowing to simplify the architecture of the onboard sensors. Solutions proposed
Barducci, Alessandro   +4 more
core   +2 more sources

Do beaver ponds increase methane emissions along Arctic tundra streams?

open access: yesEnvironmental Research Letters, 2023
Beaver engineering in the Arctic tundra induces hydrologic and geomorphic changes that are favorable to methane (CH _4 ) production. Beaver-mediated methane emissions are driven by inundation of existing vegetation, conversion from lotic to lentic ...
Jason A Clark   +7 more
doaj   +1 more source

Detection of Solar Photovoltaic Power Plants Using Satellite and Airborne Hyperspectral Imaging

open access: yesRemote Sensing, 2023
Solar photovoltaic panels (PV) provide great potential to reduce greenhouse gas emissions as a renewable energy technology. The number of solar PV has increased significantly in recent years and is expected to increase even further.
Christoph Jörges   +3 more
doaj   +1 more source

Spectral and Radiometric Calibration of the Next Generation Airborne Visible Infrared Spectrometer (AVIRIS-NG)

open access: yesRemote Sensing, 2019
We describe advanced spectral and radiometric calibration techniques developed for NASA’s Next Generation Airborne Visible Infrared Imaging Spectrometer (AVIRIS-NG).
J. Chapman   +8 more
semanticscholar   +1 more source

Quantifying Marine Oil Slick using the Hydrocarbon Spectra Slope Index (HYSS): A Case Study of the 2010 Deep-water Horizon Spill in the Gulf of Mexico

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology
Mapping the extent and quantifying oil slick in ocean spills is one of the major objectives for monitoring and clean-up programs. Hyperspectral sensors are among the few remote sensing tools with potential for quantifying hydrocarbon oil on water and on ...
Kamorudeen Tunde Olagunju   +3 more
doaj   +1 more source

Retrieval techniques for airborne imaging of methane concentrations using high spatial and moderate spectral resolution: application to AVIRIS [PDF]

open access: yesAtmospheric Measurement Techniques, 2014
Two quantitative retrieval techniques were evaluated to estimate methane (CH4) enhancement in concentrated plumes using high spatial and moderate spectral resolution data from the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS).
A. K. Thorpe   +2 more
doaj   +1 more source

A Comparison of AVIRIS and Landsat for Land Use Classification at the Urban Fringe

open access: yes, 2004
In this study we tested whether AVIRIS data allowed for improved land use classification over synthetic Landsat ETM+ data for a location on the urban-rural fringe of Colorado.
Goetz, Alexander F.H.   +1 more
core   +1 more source

Home - About - Disclaimer - Privacy