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- W4206724333 abstract "In this contribution, we introduce a multilevel approximation method with T-splines for fitting scattered point clouds iteratively, with an application to land remote sensing. This new procedure provides a local surface approximation by an explicit computation of the control points and is called a multilevel T-splines approximation (MTA). It is computationally efficient compared with the traditional global least-squares (LS) approach, which may fail when there is an unfavourable point density from a given refinement level. We validate our approach within a simulated framework and apply it to two real datasets: (i) a surface with holes scanned with a terrestrial laser scanner (ii) a patch on a sand-dune in the Netherlands. Both examples highlight the potential of the MTA for rapidly fitting large and noisy point clouds with variable point density and with similar results compared to the global LS approximation." @default.
- W4206724333 created "2022-01-25" @default.
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- W4206724333 date "2022-05-01" @default.
- W4206724333 modified "2023-09-27" @default.
- W4206724333 title "Multilevel T-spline Approximation for Scattered Observations with Application to Land Remote Sensing" @default.
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- W4206724333 doi "https://doi.org/10.1016/j.cad.2022.103193" @default.
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