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TitleMultispectral analysis for manmade surface extraction from RapidEye and SPOT5
AuthorZhang, Y; Guindon, B
SourceCanadian Journal of Remote Sensing vol. 38, no. 2, 2012 p. 180-196,
Alt SeriesEarth Sciences Sector, Contribution Series 20120178
PublisherInforma UK Limited
Mediapaper; on-line; digital
File formatpdf
Subjectsgeophysics; remote sensing; radiometric interpretations; radiometric surveys; satellite imagery; RapidEye; SPOT5
Illustrationstables; plots
ProgramGSC Northern Canada Division, Strategic Leadership
Released2014 06 04
AbstractThis paper presents a radiometric analysis of spectral confusion among manmade surface types as it pertains to SPOT5 and RapidEye imagery. Spectral band reflectances and indices (i.e., combinations of spectral bands) were simulated for representative urban land surface materials using detailed spectra selected from the ASTER spectral library and pixels of an AVIRIS image of the San Francisco area. The simulated reflectances and indices were used to estimate class separability among common urban materials and to investigate the utility of each sensor for discrimination of raised surfaces (roofs) versus ground level surfaces (roads, parking lots). In addition, inter-sensor and inter-band comparisons were undertaken to optimize data source selection for extraction of individual targeted land surface classes. The results demonstrate that the effectiveness of the Normalized Difference Built-up Index and the benefits of inclusion of a middle infrared spectral band for urban applications.