In this paper we illustrate a method for automatic reconstruction of models of a piecewise smooth surface. When the object has a complex shape it is very difficult to obtain a good reconstruction and a real-looking representation. If the object has a continuos curvature (convex hull) it is possible to generate a 3D triangular surface employing the Delaunay algorithm, generalized to the 3d-dimensional case. Then if one wants to have a good result in terms of visual display it is necessary to apply another algorithm that produces Bézier splines on a triangular support. Of course, a realistic reconstruction of the object shape needs a high hardware performance to obtain as a final product the display of the interpolated surface (using CAD software). Some applications will be shown by means of examples.
Complex Surface Representation / Crippa, B.; Malinverni, Eva Savina; Tucci, G.. - In: INTERNATIONAL ARCHIVES OF PHOTOGRAMMETRY AND REMOTE SENSING. - ISSN 0256-1840. - STAMPA. - XXXII 6W4:(1998), pp. 125-133. (Intervento presentato al convegno International cooperation and technology transfer tenutosi a Perugia, Italia nel 27-31 ottobre 1997).
Complex Surface Representation
MALINVERNI, Eva Savina;
1998-01-01
Abstract
In this paper we illustrate a method for automatic reconstruction of models of a piecewise smooth surface. When the object has a complex shape it is very difficult to obtain a good reconstruction and a real-looking representation. If the object has a continuos curvature (convex hull) it is possible to generate a 3D triangular surface employing the Delaunay algorithm, generalized to the 3d-dimensional case. Then if one wants to have a good result in terms of visual display it is necessary to apply another algorithm that produces Bézier splines on a triangular support. Of course, a realistic reconstruction of the object shape needs a high hardware performance to obtain as a final product the display of the interpolated surface (using CAD software). Some applications will be shown by means of examples.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
