Results 41 to 50 of about 132 (101)
Journal of Geophysical Research: Biogeosciences, Volume 129, Issue 10, October 2024.Abstract Numerous efforts to measure land surface fluxes, from leaf to canopy scales, have significantly advanced the field of biogeoscience. However, upscaling these estimates to larger spatial and temporal scales remains a challenge. Recent advancements in remote sensing provide new opportunities to bridge these gaps in upscaling efforts.
Youngryel Ryu
wiley +1 more source
Neural-based spatial-spectral sensitivity correction for push-brum hyperspectral cameras
Компьютерная оптикаA neural network-based method for trainable spatial-spectral sensitivity correction of a push-broom hyperspectral sensor is proposed. Unlike traditional calibration approaches that equalize the recorded signal from a uniformly illuminated Lambertian ...
A.R., A.V.
doaj +1 more source
Algae bloom intensity classification using machine learning methods and UAV hyperspectral data
Компьютерная оптикаThis paper presents an approach for high spatial resolution hyperspectral image analysis in an applied task of river water condition assessment. The method allows the detection of algal blooms or water pollution by foreign substances.
I.A. Novikov +12 more
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Optimization of Lighting Parameters for Imaging with the Optical Identification Module
Сельскохозяйственные машины и технологииHyperspectral analysis is a non-invasive method that reduces losses and improves fruit quality by accurately identifying defects during sorting. A key requirement for obtaining reliable data is stable, uniform illumination provided by specialized light ...
A. D. Chilikin, D. O. Hort
doaj +1 more source
Mapping of Sabah Islands using Airborne Hyperspectrometer
Journal of Geography and Geology, 2009 Human recreational activities and tourism are concentrated on the islands and in coastal waters, often depending on the maintenance of high water quality. The managing of impacts of urbanization and industrialization on the coastal zone ecology has become a high priority for many nations such as Malaysia and, hence, the need to develop better methods ...
openaire +2 more sources
Computer Optics, 2017 The modeling of the illuminance distribution in the detection plane of an optical scheme composed of an objective and an Offner spectrometer is conducted. We calculate the illuminance distribution in the detection plane of the hyperspectrometer in the geometric optics approximation.
A. Rastorguev +2 more
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SensorsThe safeguarding of scarce water resources is critically dependent on continuous water quality monitoring. Traditional methods like satellite imagery and automated underwater observation have limitations in cost-efficiency and frequency. Addressing these
Yunfei Li +3 more
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Modeling action of a hyperspectrometer based on the offner scheme within geometric optics
Computer Optics, 2014 We considered comparative modeling action of a hyperspectrometer based on the Offner scheme including prisms or a diffraction grating within the geometrical optics. It is shown that the use of a diffraction grating instead of a prism results in a more uniform spread of the spectral components of the dispersed image.
N. Kazanskiy +3 more
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Simulation of a hyperspectrometer based on linear spectral filters using vector bessel beams
Computer Optics, 2014 We discuss the simulation of a hyperspectrometer based on the use of linear variable filters. The possibility of recovery of the image spectral pixels through the solution of the integral equation is considered. Estimates of the scattering spot size as a function of the spectral filter parameters are obtained.
N. Kazanskiy, S. Kharitonov, S. Khonina
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Micro Spectrometers Based on Materials Nanoarchitectonics. [PDF]
Materials (Basel), 2023 Qiu Y, Zhou X, Tang X, Hao Q, Chen M.
europepmc +1 more source