A Technology Cocktail for a 3D Photo-Realistic Model of a I Century Roman Fountain: Range Scanning, RTI and Physically Based Rendering

Simple item page
dc.contributor.authorBarbosa, Joãoen_US
dc.contributor.authorBernardes, Pauloen_US
dc.contributor.authorAlmeida, Matheusen_US
dc.contributor.authorGomes, Pedroen_US
dc.contributor.authorGonçalves, Ricardoen_US
dc.contributor.authorProença, Albertoen_US
dc.contributor.editorMichael Ashley and Sorin Hermon and Alberto Proenca and Karina Rodriguez-Echavarriaen_US
dc.date.accessioned2014-01-31T15:22:24Z
dc.date.available2014-01-31T15:22:24Z
dc.date.issued2008en_US
dc.description.abstractArchaeology is a science that uses multiple disciplines to ensure the validity of archaeological data and to accurately support theoretical foundations. Archaeology uses computer graphics to create credible virtual representations of archaeological sites and artifacts, which are used for interpretation, research purposes and archiving. Accurate virtual representations of an archaeological site rely on a balanced mixture of techniques, and some are discussed in this communication aplied to a I century roman fountain. Different imaging techniques were integrated - point cloud from a total station, 3D mid-range laser scanning and reflectance transformation imaging (RTI) - where their best features are extracted and combined to get the most accurate data in different scales. A point cloud enables a fair representation of the entire site (macro-scale), including the surrounding environment features. A 3D mid-range scanning captures the surface detail (medium-scale), but it may not be reliable to capture microstructure elements. An RTI technique (such as polynomial texture mapping, PTM) may overcome this limitation, since it can capture the microstructure elements through the surface reflectance properties. A physically based rendering technique (such as the one used by PBRT) can contribute to produce an improved view of an archaeological site, from a virtual 3D model. A collection of open-source software tools is under development to efficiently merge these techniques. This integrated set aims to provide a smooth integration of data gathered on the field, while adequately documenting all processing steps for archival purposes. Obtained results so far are promising and suggest some paths for improvementsen_US
dc.description.seriesinformationVAST: International Symposium on Virtual Reality, Archaeology and Intelligent Cultural Heritageen_US
dc.identifier.isbn978-3-905674-14-9en_US
dc.identifier.issn1811-864Xen_US
dc.identifier.urihttps://doi.org/10.2312/VAST/VAST08/025-032en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): çScatI.3.5Computer GraphicsPhysically based modelingen_US
dc.titleA Technology Cocktail for a 3D Photo-Realistic Model of a I Century Roman Fountain: Range Scanning, RTI and Physically Based Renderingen_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
025-032.pdf
Size:
3.85 MB
Format:
Adobe Portable Document Format
Download
Collections
VAST08: The 9th International Symposium on Virtual Reality, Archaeology and Intelligent Cultural Heritage