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Estudo da resposta espectral de alvos urbanos com espectroscopia de reflectância e imagens de alta resolução espacial
(Universidade Federal de Santa MariaBrasilGeografiaUFSMPrograma de Pós-Graduação em GeografiaCentro de Ciências Naturais e Exatas, 2014-12-10)
Urban areas are composed with diverse set of materials arranged in a complex way
by man for its survival. Remote sensing is the tool with potential for obtain spectral
data of urban materials and their conditions. This ...
Spectral Differences of Tree Species Belonging to Atlantic Forest Obtained from Uav Hyperspectral Images
(2020-03-01)
The objective of this study is to evaluate the spectral difference between and within 11 tree species belonging to Brazilian Atlantic Forest located in the countryside of São Paulo State, Brazil. Tree species with different ...
SPECTRAL DIFFERENCES OF TREE SPECIES BELONGING TO ATLANTIC FOREST OBTAINED FROM UAV HYPERSPECTRAL IMAGES
(Ieee, 2020-01-01)
The objective of this study is to evaluate the spectral difference between and within 11 tree species belonging to Brazilian Atlantic Forest located in the countryside of Sao Paulo State, Brazil. Tree species with different ...
Improvement of leaf nitrogen content inference in Valencia-orange trees applying spectral analysis algorithms in UAV mounted-sensor images
(Elsevier B.V., 2019-11-01)
Nitrogen is one of the main required nutrients for the production of citrus plants. Farmers have used the chemical analysis of leaf tissue to determine the amount of nitrogen needed in a crop. However, its possible to ...
A study on the effects of viewing angle variation in sugarcane radiometric measuresEstudo do efeito da variação no ângulo de visada em medidas radiométricas na cana-de-açúcar
(2018-01-01)
Remote Sensing techniques, such as field spectroscopy provide information with a large level of detail about spectral characteristics of plants enabling the monitoring of crops. The aim of this study is to analyze the ...
Effect of Different Spectral Power Distributions on Mesopic Visual Performance with Blue Light-filtering Intraocular Lens
(Illuminating Engineering Society of North America, 2020-07)
The purpose of this work is to analyze the interaction between the spectral transmittance of old-aged subjects, before and after cataract surgery and blue light-filtering intraocular lens implantation, and the spectral ...
Spectral index variations of galactic emission
(Copernicus GmbH, Katlenburg-Lindau, 2004-12)
We have used all-sky maps at 45 MHz, 408 MHz, 1420 MHz and 22.8 GHz to calculate the distribution of spectral indices across the sky. This requires an adjustment of the adopted zero-levels of the different surveys, which ...
Ability of in situ canopy spectroscopy to differentiate genotype by environment interaction in wheat
(Taylor & Francis Ltd, 2021-03)
In recent years, the application of remote sensing techniques is gaining a growing interest and importance in agriculture. Researchers often combine data from near-infrared and red spectral bands according to their specific ...
Analysis and spectral element solution of nonlinear integral equations of hammerstein type
(2021-01-01)
We employ the spectral element method with Gauss-Lobatto-Legendre collocation points to approximate nonlinear integral equations of Hammerstein type. Using the Banach Fixed Point Theorem, we establish sufficient conditions ...