Celebratio Mathematica — Daubechies

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T. Ružić, B. Cornelis, L. Platiša, A. Pižurica, A. Dooms, W. Philips, M. Martens, M. De Mey, and I. Daubechies: “Virtual restoration of the Ghent Altarpiece using crack detection and inpainting,” pp. 417–428 in Advanced concepts for intelligent vision systems: 13th international conference (Ghent, Belgium, 22–25 August 2011). Edited by J. Blanc-Talon, R. Kleihorst, W. Philips, D. Popescu, and P. Scheunders. Lecture Notes in Computer Science 6915. Springer (Berlin), 2011. incollection

In this paper, we present a new method for virtual restoration of digitized paintings, with the special focus on the Ghent Altarpiece (1432), one of Belgium’s greatest masterpieces. The goal of the work is to remove cracks from the digitized painting thereby approximating how the painting looked like before ageing for nearly 600 years and aiding art historical and palaeographical analysis. For crack detection, we employ a multiscale morphological approach, which can cope with greatly varying thickness of the cracks as well as with their varying intensities (from dark to the light ones). Due to the content of the painting (with extremely many fine details) and complex type of cracks (including inconsistent whitish clouds around them), the available inpainting methods do not provide satisfactory results on many parts of the painting. We show that patch-based methods outperform pixel-based ones, but leaving still much room for improvements in this application. We propose a new method for candidate patch selection, which can be combined with different patch-based inpainting methods to improve their performance in crack removal. The results demonstrate improved performance, with less artefacts and better preserved fine details.

Bruno Cornelis	Related
Wilfried Philips	Related
Paul Scheunders	Related
Aleksandra Pižurica	Related
Maximiliaan P. J. Martens	Related
Ljiljana Platiša	Related
Daniel C. Popescu	Related
Marc De Mey	Related
Richard Kleihorst	Related
Jacques Blanc-Talon	Related
Tijana Ružić	Related
Ann Dooms	Related

@incollection {key41995092,
	AUTHOR = {Ru\v{z}i\'c, Tijana and Cornelis, Bruno
		 and Plati\v{s}a, Ljiljana and Pi\v{z}urica,
		 Aleksandra and Dooms, Ann and Philips,
		 Wilfried and Martens, Maximiliaan and
		 De Mey, Marc and Daubechies, Ingrid},
	TITLE = {Virtual restoration of the {G}hent {A}ltarpiece
		 using crack detection and inpainting},
	BOOKTITLE = {Advanced concepts for intelligent vision
		 systems: 13th international conference},
	EDITOR = {Blanc-Talon, Jacques and Kleihorst,
		 Richard and Philips, Wilfried and Popescu,
		 Dan and Scheunders, Paul},
	SERIES = {Lecture Notes in Computer Science},
	NUMBER = {6915},
	PUBLISHER = {Springer},
	ADDRESS = {Berlin},
	YEAR = {2011},
	PAGES = {417--428},
	DOI = {10.1007/978-3-642-23687-7_38},
	NOTE = {(Ghent, Belgium, 22--25 August 2011).},
	ISSN = {0302-9743},
	ISBN = {9783642236860},
}