Pressing: Smooth Isosurfaces with Flats from Binary GridsReport as inadecuate

Pressing: Smooth Isosurfaces with Flats from Binary Grids

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We explore the automatic recovery of solids from their binary volumetric discretizations. In particular, we proposean approach, called Pressing, for smoothing isosurfaces extracted from binary volumes while recovering theirlarge planar regions flats. Pressing yields a surface that is guaranteed to contain the samples of the volumeclassified as interior and exclude those classified as exterior. It uses global optimization to identify flats andconstrained bilaplacian smoothing to eliminate sharp features and high-frequencies from the rest of the isosurface.It recovers sharp edges between flat regions and between flat and smooth regions. Hence, the resulting isosurfaceis usually a very accurate approximation of the original solid. Furthermore, the segmentation of the isosurfaceinto flat and curved faces and the sharp-smooth labelling of their edges may be valuable for shape recognition,simplification, compression, and various reverse engineering and manufacturing applications.

GVU Center Technical Reports -

Author: Chica, Antonio - Williams, Jason - Andujar, Carlos - Brunet, Pere - Navazo, Isabel - Rossignac, Jaroslaw R. - Vinacua, Alvar - -



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