Title :
Wavenumber Spectra of High Resolution Optical Images for Characterizing Urban Features
Author :
Solimini, C. ; Emery, W.J. ; Solimini, D.
Author_Institution :
EOP-S, ESA/ESRIN, Frascati
Abstract :
This study analyzes different wavenumber spectra produced by both uni-dimensional and bi-dimensional Fast Fourier Transform (FFT) of Very High Resolution (VHR) QuickBird (QB) images to quantitatively describe significant features in the images of different urban environments. The variation of spectra in the wavenumber domain has been assessed by ancillary data comparisons in the spatial domain. Some spectral properties of QB images have been investigated in both spatial and temporal domains..
Keywords :
fast Fourier transforms; image processing; remote sensing; 1D Fast Fourier Transform; 2D Fast Fourier Transform; FFT; VHR QB images; Very High Resolution QuickBird images; ancillary data comparisons; spectral properties; urban features; wavenumber spectra; Cities and towns; Image analysis; Image resolution; Optical sensors; Optical surface waves; Pixel; Reflectivity; Satellites; Spatial resolution; Urban areas;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4780055
