caa a22 4500 605447179 CHVBK 20210128100131.0 cr unu---uuuuu 210128e20151101xx s 000 0 eng 10.1007/s11042-014-2149-1 doi (NATIONALLICENCE)springer-10.1007/s11042-014-2149-1 Designing and evaluating an expert system for restoring damaged byzantine icons [Elektronische Daten] [A. Maronidis, C. Voutounos, A. Lanitis] The use of image processing techniques in cultural heritage applications has been gaining increasing interest in the research community. In this paper, an integrated framework that can be used for virtual restoration of the facial region of damaged Byzantine icons is presented. A key aspect of the proposed methodology is the integration of practices adopted by expert icon restorers into a machine-based expert system that incorporates the modules of damage detection, shape and texture restoration. Damage detection is performed based on a residual-based approach, while the shape restoration method utilizes a 3D shape model generated by incorporating a set of geometrical rules defined by expert Byzantine style iconographers. Texture restoration is based on the recursive Principal Component Analysis (PCA) technique so that combinations of colors learned from a training set are applied to the damaged icon regions. All modules, developed as part of this framework, are incorporated into a user-friendly application that can be used by amateurs or professional Byzantine icon restorers and conservators. The potential of the developed tool has been validated through a quantitative experimental process and a user-based evaluation. Springer Science+Business Media New York, 2014 Damage detection nationallicence Shape restoration nationallicence Texture restoration nationallicence Expert system nationallicence Icon restoration nationallicence Statistical appearance models nationallicence Maronidis A. Visual Media Computing Lab, Department of Multimedia and Graphic Arts, Cyprus University of Technology, 31 Archbishop Kyprianos Street, P. O. Box 50329, 3603, Lemesos, Cyprus aut Voutounos C. Visual Media Computing Lab, Department of Multimedia and Graphic Arts, Cyprus University of Technology, 31 Archbishop Kyprianos Street, P. O. Box 50329, 3603, Lemesos, Cyprus aut Lanitis A. Visual Media Computing Lab, Department of Multimedia and Graphic Arts, Cyprus University of Technology, 31 Archbishop Kyprianos Street, P. O. Box 50329, 3603, Lemesos, Cyprus aut Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/21(2015-11-01), 9747-9770 1380-7501 74:21<9747 2015 74 11042 https://doi.org/10.1007/s11042-014-2149-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11042-014-2149-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Maronidis A. Visual Media Computing Lab, Department of Multimedia and Graphic Arts, Cyprus University of Technology, 31 Archbishop Kyprianos Street, P. O. Box 50329, 3603, Lemesos, Cyprus aut NATIONALLICENCE 700 1- Voutounos C. Visual Media Computing Lab, Department of Multimedia and Graphic Arts, Cyprus University of Technology, 31 Archbishop Kyprianos Street, P. O. Box 50329, 3603, Lemesos, Cyprus aut NATIONALLICENCE 700 1- Lanitis A. Visual Media Computing Lab, Department of Multimedia and Graphic Arts, Cyprus University of Technology, 31 Archbishop Kyprianos Street, P. O. Box 50329, 3603, Lemesos, Cyprus aut NATIONALLICENCE 773 0- Multimedia Tools and Applications Springer US; http://www.springer-ny.com 74/21(2015-11-01), 9747-9770 1380-7501 74:21<9747 2015 74 11042