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Example-based fractured appearance

A common weathering effect is the appearance of cracks due to material fractures. Previous exemplar-based aging And weathering methods have either reused images or sought to replicate observed patterns exactly. We introduce A new approach to exemplar-based modeling that creates weathered patterns on synthetic objects by matching the Statistics of fracture patterns in a photograph. We present a user study to determine which statistics are correlated To visual similarity and how they are perceived by the user. We then describe a revised physically-based fracture Model capable of producing a wide range of crack patterns at interactive rates. We demonstrate how a Bayesian Optimization method can determine the parameters of this model so it can produce a pattern with the same key Statistics as an exemplar. Finally, we present results using our approach and various exemplars to produce a Variety of fracture effects in synthetic renderings of complex environments. The speed of the fracture simulation Allows interactive previews of the fractured results and its application on large scale environments

This work is partially supported by the Spanish Ministerio de Ciencia e Innovacion (grant TIN2010-20590-C02-02) and NSF grant NSF-1064412

漏 Computer Graphics Forum, 2012, vol. 31, n煤m. 4, p. 1547-1556

Wiley

Author: Glondu, Loeiz
Muguercia, Lien
Marchal, Maud
Bosch Geli, Carles
Rushmeier, Holly
Dumont, George
Drettakis, George
Date: 2012
Abstract: A common weathering effect is the appearance of cracks due to material fractures. Previous exemplar-based aging And weathering methods have either reused images or sought to replicate observed patterns exactly. We introduce A new approach to exemplar-based modeling that creates weathered patterns on synthetic objects by matching the Statistics of fracture patterns in a photograph. We present a user study to determine which statistics are correlated To visual similarity and how they are perceived by the user. We then describe a revised physically-based fracture Model capable of producing a wide range of crack patterns at interactive rates. We demonstrate how a Bayesian Optimization method can determine the parameters of this model so it can produce a pattern with the same key Statistics as an exemplar. Finally, we present results using our approach and various exemplars to produce a Variety of fracture effects in synthetic renderings of complex environments. The speed of the fracture simulation Allows interactive previews of the fractured results and its application on large scale environments
This work is partially supported by the Spanish Ministerio de Ciencia e Innovacion (grant TIN2010-20590-C02-02) and NSF grant NSF-1064412
Format: application/pdf
ISSN: 0167-7055 (versi贸 paper)
1467-8659 (versi贸 electr貌nica)
Document access: http://hdl.handle.net/10256/11988
Language: eng
Publisher: Wiley
Collection: MICINN/PN 2011-2013/TIN2010-20590-C02-02
Reproducci贸 digital del document publicat a: http://dx.doi.org/10.1111/j.1467-8659.2012.03151.x
Articles publicats (D-IMA)
Is part of: 漏 Computer Graphics Forum, 2012, vol. 31, n煤m. 4, p. 1547-1556
Rights: Tots els drets reservats
Subject: Infografia
Computer graphics
Estad铆stica bayesiana
Bayesian statistical decision theory
Simulaci贸 per ordinador
Computer simulation
Title: Example-based fractured appearance
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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