Relief pattern segmentation using 2D-grid patches on a locally ordered mesh manifold

Claudio Tortorici, Denis Vreshtazi, Stefano Berretti, Naoufel Werghi

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The mesh manifold support has been analyzed to perform several different tasks. Recently, it emerged the need for new methods capable of analyzing relief patterns on the surface. In particular, a new and not investigated problem is that of segmenting the surface according to the presence of different relief patterns. In this paper, we introduce this problem and propose a new approach for segmenting such relief patterns (also called geometric texture) on the mesh-manifold. Operating on regular and ordered mesh, we design, in the first part of the paper, a new mesh re-sampling technique complying with this requirement. This technique ensures the best trade-off between mesh regularization and geometric texture preservation, when compared with competitive methods. In the second part, we present a novel scheme for segmenting a mesh surface into three classes: textured-surface, non-textured surface, and edges (i.e., surfaces at the border between the two). This technique leverages the ordered structure of the mesh for deriving 2D-grid patches allowing us to approach the segmentation problem as a patch-classification technique using a CNN network in a transfer learning setting. Experiments performed on surface samples from the SHREC'18 contest show remarkable performance with an overall segmentation accuracy of over 99%.

Original languageBritish English
Title of host publicationItalian Chapter Conference 2019 - Smart Tools and Apps in computer Graphics, STAG 2019
EditorsMarco Agus, Massimiliano Corsini, Ruggero Pintus
Pages109-110
Number of pages2
ISBN (Electronic)9783038681007
DOIs
StatePublished - 2019
Event2019 Italian Chapter Conference - Smart Tools and Apps in Computer Graphics, STAG 2019 - Cagliari, Italy
Duration: 14 Nov 201915 Nov 2019

Publication series

NameItalian Chapter Conference 2019 - Smart Tools and Apps in computer Graphics, STAG 2019

Conference

Conference2019 Italian Chapter Conference - Smart Tools and Apps in Computer Graphics, STAG 2019
Country/TerritoryItaly
CityCagliari
Period14/11/1915/11/19

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