Surface smoothing is one of the numerical procedures that can be applied to a triangulated mesh file to return a more appealing geometry.
In literature, there are many smoothing algorithms available, but especially those
based on the modification of vertex position suffer from high mesh shrinkage and loss of important geometry features like
holes and surface planarity. For these reasons, an improved vertex-based algorithm based on Vollmer’s surface smoothing
has been developed and introduced in this work along with two case studies included to evaluate its performances compared
with existent algorithms.
they developed a tool called TOPslicer useful to analyze and
improve optimized models based on voxels. Voxelization is
a representation method that uses hexahedral elements to
discretize a control volume in which the 3D model is contained
(Jense 1989)
The external surface smoothing is inspired by the
image denoising techniques aiming at removing the noise
that affects the pixels in an image and uniformly deters their
information (Buades et al. 2005), (Ming Zhang and Gunturk
2008). The same basic concept is applied to surface
smoothing which is a numerical method useful to detect and
remove noise and spikes from the surface model, returning a
more appealing geometry by evolving the surface iteratively
(Desbrun et al. 1999).
출처 :
Surface smoothing for topological optimized 3D models
