Using 3D digital models for the virtual restoration of polychrome in interesting cultural sites |
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| Institution: | 1. Fundación CARTIF, Parque Tecnológico de Boecillo, P. 205, 47151 Boecillo, Valladolid, Spain;2. ETSII, Universidad de Valladolid, Paseo del Cauce, s/n, 47011 Valladolid, Spain;1. Autonomous Systems, CSIRO Computational Informatics, Brisbane, Australia;2. School of Architecture, The University of Queensland, Brisbane, Australia;1. Department of Cartographic Engineering, Geodesy and Photogrammetry, High School of Civil Engineering (UPV), 46022 Valencia, Spain;2. Department of Architectural Projects, High School of Architecture (UPV), 46022 Valencia, Spain;3. Area of Cartographic Engineering, Geodesy and Photogrammetry, Polytechnic High School of Lugo (USC), 27002 Lugo, Spain;1. Departamento de Edafología y Química Agrícola, Facultad Farmacia, Universidad de Santiago de Compostela, 15782 Santiago de Compostela, Spain;2. Color & Vision Group, University Institute of Physics Applied to Sciences and Technologies, University of Alicante, San Vicente del Raspeig, 03690 Alicante, Spain |
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| Abstract: | In most cases, the polychrome paintings that decorated heritage buildings no longer exist or are reduced to mere remnants. These facts decontextualize the sites in their historical and artistic evolution, distort the intention under which they were conceived, and hamper their accomplishment. Current recovery methods are restricted to the stabilization of the remains in their present status, requiring a lot of completely manual work that is expensive and almost unrelated to the use of new technologies. Three-dimensional digitalization and modelling is proved to be the basis for the virtual recovery of paintings in a significant edifice. To do so, an innovative methodology is presented that allows the 3D geometric information of a site (captured using a laser scanner) to be combined with specially designed 2D artistic images. The resulting 3D digital models can then be focused, with high efficiency projectors, on the equivalent area of the original site, and also used as raw material to compose a video-projection without perspective effects to emulate, with due rigour, the primitive appearance, its evolution along time, the effects of the deterioration, or other interesting aspects. The results obtained at Sta. María de Mave (Palencia, Spain) are presented, supporting the potential of this new methodology not only as a scientific way to discuss possible restoration hypotheses with experts or as a didactic tool for narrating the historical evolution of a monument, but also as a spectacular show for tourists. |
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| Keywords: | Digital modelling Texture mapping Digital projection Video mapping 3D virtual painting |
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