Zhi-xun SU, Zhi-yang LI, Yuan-di ZHAO, et al. Curvature-aware simplification for point-sampled geometry[J]. Frontiers of Information Technology & Electronic Engineering, 2011, 12(3): 184-194.
DOI:
Zhi-xun SU, Zhi-yang LI, Yuan-di ZHAO, et al. Curvature-aware simplification for point-sampled geometry[J]. Frontiers of Information Technology & Electronic Engineering, 2011, 12(3): 184-194. DOI: 10.1631/jzus.C1000068.
Curvature-aware simplification for point-sampled geometry
We propose a novel curvature-aware simplification technique for point-sampled geometry based on the locally optimal projection (LOP) operator. Our algorithm includes two new developments. First
a weight term related to surface variation at each point is introduced to the classic LOP operator. It produces output points with a spatially adaptive distribution. Second
for speeding up the convergence of our method
an initialization process is proposed based on geometry-aware stochastic sampling. Owing to the initialization
the relaxation process achieves a faster convergence rate than those initialized by uniform sampling. Our simplification method possesses a number of distinguishing features. In particular
it provides resilience to noise and outliers
and an intuitively controllable distribution of simplification. Finally
we show the results of our approach with publicly available point cloud data
and compare the results with those obtained using previous methods. Our method outperforms these methods on raw scanned data.
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