69 research outputs found
Recent advances in Earth remote sensing: Fourier Transform Stationary HyperSpectral Imagers
Future trends for the development of new remote sensing imagers have being defined since the launch of the first
Fourier Transform HyperSpectral Imager (FTHSI) on board of DoD technological satellite MightySat II.1. Starting
from the analysis of FTHSI optical configuration we have proposed an interesting modification which produces
an image of the observed surface superimposed to a stationary interference pattern. This new optical arrangement
together with the possibility to accommodate the spectral resolution by changing the device optical aperture and
the sensor sampling step make the new instrument interesting for Earth remote sensing purposes. In this paper we
present some preliminary results obtained from a laboratory prototype developed at our Institute. Some hints are
discussed about the use of such an instrument on board of airborne and satellite platforms
Hyperspectral remote sensing for light pollution monitoring
industries. In this paper we introduce the results from a remote sensing campaign performed in September 2001
at night time. For the first time nocturnal light pollution was measured at high spatial and spectral resolution using
two airborne hyperspectral sensors, namely the Multispectral Infrared and Visible Imaging Spectrometer
(MIVIS) and the Visible InfraRed Scanner (VIRS-200). These imagers, generally employed for day-time Earth
remote sensing, were flown over the Tuscany coast (Italy) on board of a Casa 212/200 airplane from an altitude
of 1.5-2.0 km. We describe the experimental activities which preceded the remote sensing campaign, the optimization
of sensor configuration, and the images as far acquired. The obtained results point out the novelty of
the performed measurements and highlight the need to employ advanced remote sensing techniques as a spectroscopic
tool for light pollution monitoring
Verifica delle potenzialità del sensore DAEDALUS nello studio dei sedimenti costieri nel Parco di San Rossore
Laparoscopia nas hérnias diafragmáticas: estudo experimental em cães
O artigo não apresenta resumo
Overlapping of mononuclear cells derived from bone marrow in rats' intervertebral discs: an in vitro study
Avaliações clínica, ecográfica e anatomofisiológica do alotransplante parcial de vesícula urinária com células-tronco mesenquimais alogênicas derivadas do tecido adiposo em coelhos
Ausência de efeito antinociceptivo decorrente da administração intravenosa de crotalfina em comparação com morfina, U50-488H ou fenilbutazona em equinos submetidos à estimulação térmica da pele íntegra
Recent advances in Earth remote sensing: Fourier Transform Stationary HyperSpectral Imagers
Future trends for the development of new remote sensing imagers have being defined since the launch of the first
Fourier Transform HyperSpectral Imager (FTHSI) on board of DoD technological satellite MightySat II.1. Starting
from the analysis of FTHSI optical configuration we have proposed an interesting modification which produces
an image of the observed surface superimposed to a stationary interference pattern. This new optical arrangement
together with the possibility to accommodate the spectral resolution by changing the device optical aperture and
the sensor sampling step make the new instrument interesting for Earth remote sensing purposes. In this paper we
present some preliminary results obtained from a laboratory prototype developed at our Institute. Some hints are
discussed about the use of such an instrument on board of airborne and satellite platforms
Telerilevamento della concentrazione di azoto fogliare in ecosistemi forestali litoranei
Lo studio qui presentato ha lo scopo di testare nuove metodologie per il rilevamento della concentrazione di azoto fogliare (N) a livello di copertura. In particolare sono state messe a confronto due tecniche differenti basate sul remote sensing: la prima basata sulle lunghezze d’onda dello SWIR (Short Wave Infra-Red) e la seconda sul NIR (Near Infra-Red). La possibilità di stimare la concentrazione fogliare di N dalla riflettanza nel NIR è stata dimostrata da recenti studi su foreste temperate e boreali (Ollinger et al., 2008; Hollinger et al., 2009) utilizzando immagini MODIS (Moderate Resolution Imaging Spectroradiometer), poco idonee all’alta variabilità spaziale del territorio italiano. Per ottenere dati SWIR è stato utilizzato un volo aereo MIVIS (Multispectral Infrared and Visible Imaging Spectrometer) effettuato nel giugno 2000 sull’area di studio del Parco Naturale di San Rossore, Pisa (Italia); mentre, per il NIR, si sono utilizzate immagini Landsat 7 ETM+ (Enhanced Thematic Mapper Plus) riprese nello stesso periodo ed interessanti la stessa zona. La riflettanza di copertura stimata da immagini telerilevate è stata poi messa in relazione a rilievi a terra eseguiti sempre nel giugno 2000
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