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- W2019732471 abstract "Graphical abstractDisplay Omitted Highlights? Use of local feature line approximation for MLS with sharp feature reconstruction. ? Feature reconstruction by segmentation and up-sampling of local neighborhoods along feature curves. ? Capable to handle sharp line-type features and corner features. ? Full automatic sharp feature detection as preprocess speeds up iterative reconstructions. Sharp features in manufactured and designed objects require particular attention when reconstructing surfaces from unorganized scan point sets using moving least squares (MLS) fitting. It is an inherent property of MLS fitting that sharp features are smoothed out. Instead of searching for appropriate new fitting functions our approach computes a modified local point neighborhood so that a standard MLS fitting can be applied enhanced by sharp features reconstruction.We present a two-stage algorithm. In a pre-processing step sharp feature points are marked first. This algorithm is robust to noise since it is based on Gauss map clustering. In the main phase, the selected feature points are used to locally approximate the feature curve and to segment and enhance the local point neighborhood. The MLS projection thus leads to a piecewise smooth surface preserving all sharp features. The method is simple to implement and able to preserve line-type features as well as corner-type features during reconstruction." @default.
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- W2019732471 date "2012-11-01" @default.
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- W2019732471 title "Sharp feature preserving MLS surface reconstruction based on local feature line approximations" @default.
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- W2019732471 doi "https://doi.org/10.1016/j.gmod.2012.04.012" @default.
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