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Multi-angle quantitative remote sensing based on geometrical optics theory has been applied in many research areas such as environment, agriculture etc. Usually, many ground spectrum measurement experiments are used to verify the data products of remote sensing satellites and models. But the weather condition and other factors will influence the field measuring results greatly. Due to the low reflectivity...
To monitor biological systems, aside destructive testing which have been developed in chemistry and chromatography, hyperspectral image acquisition and processing exhibit the great advantage of being non-destructive. In this paper, a hyperspectral image acquisition setup is proposed, to get detailed information on the reflectance of leaves. We aim at giving information about the repartition of pigments...
Airborne time series imagery is used to measure frequency-wavenumber spectra of gravity waves, accurately locating the dispersion surface to retrieve water depths and currents. In shallow water, the same frequency-wavenumber spectra often exhibit an `advective surface' caused by flow-induced transport of sediment variations indicative of partly mixed water masses having different sediment loads. The...
In summer of 2008, an outbreak of Enteromorpha Prolifra (EP), a kind of green algae, occurred in the Yellow Sea of china and posed a serious threat to the 29th Olympic Sailing Games. A color array camera was installed on the aircraft and used to monitoring the spatial distribution of EP. In this paper, we measured the spectral properties of EP and analyzed the R, G, B three band aerial remote sensing...
Two new algorithms are derived for remotely detecting a material characterized only by its laboratory spectrum. The methods are motivated by the practical difficulties in predicting an accurate field radiance from a reflectance. The first algorithm associates an affine subspace with the material, instead of a radiance point. The second algorithm is designed to prevent false alarms from dark pixels,...
Gases are one of quite difficult environmental factor to treat. They are obstruction in humans life because they have amorphous shape and the are invisible. Additionally, some gases have no smell. Especially, generation of toxic gas near volcano and industrial waste processing facilities, is closely related to our life. These gases are hitherto detected on site survey by gas detection tube and spectrum...
With higher spatial resolution, the image classification of remote sensing is always a hot research field. Besides spectral information, texture information from remote sensing image of higher spatial resolution has become an important data source to improve the classification accuracy. The image classification approach adopts an improved neural network, which contains two steps connected by the refusal...
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