科研之友
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摘要
Interpolation and approximation radial basis RBF) has been widely used in the implicit surface reconstruction. However, a simple interpolation or approximation method may either have unwanted oscillation around the scattered points, or have low accuracy at scattered points. In this paper, we construct a new representation of RBF, which unites interpolation and approximation. A further adaptive algorithm to determine interpolation and approximation is presented. With the new representation, we can develop quasi-interpolation method from an approximation method into a method combining interpolation and approximation. And we can determine interpolation or approximation at each of scattered points without solving large linear systems. Experiments show that the given method is precision-controlled and fast in implicit surface reconstruction.
