A framework for user-assisted sketch-based fitting of geometric primitives
Contributo in Atti di convegno
Data di Pubblicazione:
2010
Citazione:
A framework for user-assisted sketch-based fitting of geometric primitives / D. Portelli, F. Ganovelli, M. Tarini, P. Cignoni, M. Dellepiane, R. Scopigno - In: 18th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, WSCG 2010 - In Co-operation with EUROGRAPHICS, Full Papers Proceedings[s.l] : Václav Skala - UNION Agency, 2010. - pp. 115-122 (( Intervento presentato al 18. convegno WSCG 2010 - 18th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision tenutosi a Plzen, cze nel 2010.
Abstract:
In this paper, we present a user-assisted sketch-based framework to extract hi-level primitives (e.g. columns or staircases) from scanned3D models of an architectural complex. The framework offers a unified level of representation of the hi-level primitives, so that new types of primitives can be easily added as plug-ins to the main engine. Primitives are fitted with a user-assisted procedure: the user suggests the approximate location of the primitive by means of simple mouse gestures, sketched over a rendering of the model. The viewpoint that was selected prior to the sketching is also taken in consideration as hints on the orientation and size of the primitive. The engine performs a GPU assisted fitting and the result is shown in real time to the user. Ad-hoc gestures cause the system to add and fit groups of primitive in one go (e.g. a column complex, or a sequence of windows).
Tipologia IRIS:
03 - Contributo in volume
Keywords:
3D segmentation; Fitting geometric primitives
Elenco autori:
D. Portelli, F. Ganovelli, M. Tarini, P. Cignoni, M. Dellepiane, R. Scopigno
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Link al Full Text:
Titolo del libro:
18th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, WSCG 2010 - In Co-operation with EUROGRAPHICS, Full Papers Proceedings