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The paper presents a method for terrain surface reconstruction from altimetric data. The approach is based on terrain modeling using a parametric surface. On the assumption that above-ground objects are outliers, M-estimators supply a theoretical framework to obtain a robust estimation of the ground surface parameters from a digital elevation model. Instead of the usual M-estimator functions, an asymmetrical weight function is introduced to improve the optimization process. We present results obtained with simulated and real data.
Image Processing. 2002. Proceedings. 2002 International Conference on (Volume:3 )
Date of Conference: 24-28 June 2002