Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.

Real-world geometry and generative knowledge

: Schiffer, Thomas; Schinko, Christoph; Ullrich, Torsten; Fellner, Dieter W.

ERCIM News (2011), Nr.86, S.15-16
ISSN: 0926-4981
Fraunhofer IGD ()
Fraunhofer Austria ()
generative modeling; procedural modeling; cultural heritage; Forschungsgruppe Semantic Models, Immersive Systems (SMIS)

The current methods of describing the shape of three-dimensional objects can be classified into two groups: composition of primitives and procedural description. As a 3D acquisition device simply returns an agglomeration of elementary objects (eg a laser scanner returns points) a real-world data set is always a - more or less noisy - composition of primitives. A generative model, on the other hand, describes an ideal object rather than a real one. Owing to this abstract view of an object, generative techniques are often used to describe objects semantically. Consequently, generative models, rather than being a replacement for established geometry descriptions (based on points, triangles, etc.), offer a sensible, semantic enrichment.