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On the estimation of rigid-body transformation for TLS registration
Full text linkThe paper presents some considerations on the estimation of rigid-body transformation which is the basis for registration and georeferencing
in terrestrial laser scanning. Two main issues are afforded, which in the opinion of the author have been poorly
investigated up until now. The first one concerns the analysis of the stochastic model of Least Squares estimation of the
transformation. In standard practice, the control points used for parameter estimation are considered as equally precise. Here two
different approaches for weighting observations in laser scan and ground control points are proposed and evaluated through a set of
Monte Carlo simulations. The second aspect refers to the reliability analysis. In particular the estimation of a joint-adjustment
including both geo-referencing parameters and geodetic network observations for the determination of ground control points is
discussed and evaluated
Computing elevation changes in Antarctica from Least Squares fitting of satellite laser altimetry data
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