Title:
Pressing: Smooth Isosurfaces with Flats from Binary Grids
Pressing: Smooth Isosurfaces with Flats from Binary Grids
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Author(s)
Chica, Antonio
Williams, Jason
Andujar, Carlos
Brunet, Pere
Navazo, Isabel
Rossignac, Jarek
Vinacua, Alvar
Williams, Jason
Andujar, Carlos
Brunet, Pere
Navazo, Isabel
Rossignac, Jarek
Vinacua, Alvar
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Abstract
We explore the automatic recovery of solids from their binary volumetric discretizations. In particular, we propose
an approach, called Pressing, for smoothing isosurfaces extracted from binary volumes while recovering their
large planar regions (flats). Pressing yields a surface that is guaranteed to contain the samples of the volume
classified as interior and exclude those classified as exterior. It uses global optimization to identify flats and
constrained 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 isosurface
is usually a very accurate approximation of the original solid. Furthermore, the segmentation of the isosurface
into 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.
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Date Issued
2007
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Text
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Technical Report