Mont’e Scan
| Autor: | Fabio Marton, Emilio Merella, Alberto Jaspe Villanueva, Ruggero Pintus, Fabio Bettio, Enrico Gobbetti |
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| Rok vydání: | 2015 |
| Předmět: |
Masking (art)
Laser scanning Computer science business.industry Process (computing) Conservation Computer Graphics and Computer-Aided Design Computer Science Applications Visualization Flash (photography) Computer graphics (images) Clutter Color data Computer vision Artificial intelligence business Digitization Information Systems |
| Zdroj: | Journal on Computing and Cultural Heritage. 8:1-23 |
| ISSN: | 1556-4711 1556-4673 |
| DOI: | 10.1145/2644823 |
| Popis: | We propose an approach for improving the digitization of shape and color of 3D artworks in a cluttered environment using 3D laser scanning and flash photography. To separate clutter from acquired material, semiautomated methods are employed to generate masks used to segment the range maps and the color photographs. This approach allows the removal of unwanted 3D and color data prior to the integration of acquired data in a 3D model. Sharp shadows generated by flash acquisition are easily handled by this masking process, and color deviations introduced by the flash light are corrected at the color blending step by taking into account the geometry of the object. The approach has been evaluated in a large-scale acquisition campaign of the Mont’e Prama complex. This site contains an extraordinary collection of stone fragments from the Nuragic era, which depict small models of prehistoric nuraghe (cone-shaped stone towers), as well as larger-than-life archers, warriors, and boxers. The acquisition campaign has covered 37 statues mounted on metallic supports. Color and shape were acquired at a resolution of 0.25mm, which resulted in more than 6,200 range maps (about 1.3G valid samples) and 3,817 photographs. |
| Databáze: | OpenAIRE |
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