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TModeling.RTINRefinementDemo
r1.1 - 02 Jun 2008 - 10:03 - Main.guest
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This MATLAB demo shows an example of Refinement for point selection as a particular instance of our neighborhood and fitting framework. The neighborhood is an RTIN, which is a hierarchical triangulation much like a quadtree (Samet 1990). The fitting method is a novel piecewise quadratic that I wanted to compare with Chui's InterpolatorySubdivision; details are being written up. The metric for evaluating which neighborhoods are well-fit is a combination of average and maximum squared error over each triangle. This demo uses a sample of gridded Lidar data in the University of Utah area, from James Little (NGA). -- Main.JackSnoeyink - 30 May 2008
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