Evaluation of geometrical parameters of buildings from SAR images
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The aim of this study is to develop a tecnique able to support the retrieval of the buildings height from SAR images. ...
The aim of this study is to develop a tecnique able to support the retrieval of the buildings height from SAR images.
In particular, an automatic method, which allows to evaluate the orientation angle of buildings in respect to the projection on the ground of the flight line of the radar platform, has been developed.
The starting point was the algorithm output that allows to identify and extract from SAR images the double scattering contribution whose intensity is linked to the geometrical and electromagnetic parameters of the buildings.
On SAR images, the double scattering contributions turn out to be misaligned dots, so, before evaluating the slope of the straight line of double scattering, a linear regression operation was necessary, starting from the knowledge of the coordinates of each pixel belonging to the line of double scattering.
Given the prospective presence of outliers, the absolute deviation instead of the standard deviation has been used.
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