Auflistung Fakultät für Bauingenieurwesen und Geodäsie nach Schlagwort "Covariance matrix"

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Characterization of the optical encoder angular noise from terrestrial laser scanners

Kermarrec, Gaël; Hartmann, Jens (Washington, DC : Optica, 2021)

Rigorous statistical testing of deformation using a terrestrial laser scanner (TLS) can avoid events such as structure collapses. Such a procedure necessitates an accurate description of the TLS measurements’ noise, which ...
How significant are differences obtained by neglecting correlations when testing for deformation: A real case study using bootstrapping with terrestrial laser scanner observations approximated by b-spline surfaces

Kermarrec, Gaël; Paffenholz, Jens-André; Alkhatib, Hamza (Basel : MDPI AG, 2019)

B-spline surfaces possess attractive properties such as a high degree of continuity or the local support of their basis functions. One of the major applications of B-spline surfaces in engineering geodesy is the least-square ...
On the sensitivity of the parameters of the intensity-based stochastic model for terrestrial laser scanner. Case study: B-spline approximation

Kermarrec, Gael; Alkhatib, Hamza; Neumann, Ingo (Basel : MDPI AG, 2018)

For a trustworthy least-squares (LS) solution, a good description of the stochastic properties of the measurements is indispensable. For a terrestrial laser scanner (TLS), the range variance can be described by a power law ...

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