Title: Object contours in virtual conceptual sketches – modelling of perception

Authors: S. Roth-Koch

Addresses: Fraunhofer Institute for Manufacturing Engineering and Automation IPA, Stuttgart, Germany

Abstract: The virtual product model in its different stages is an essential pre-requisite for the virtual modelling of processes and their virtual simulation. Product design starts with conceptual design including the concepts for shape and function – the gestalt. In this stage, the conceptual designers work on fuzzy product data applied to perception modelling and shape creating. Fuzziness means different aspects: the shape of the product is interpreted in scribbles which define the appearance and the function of the product representing a |frozen movement| more than the object contour itself. In this paper we will suppose a method to create virtual object contour models out of scribbles that construe the perception of the subject. The mathematical basis for the later virtual sketches is given by interval fuzzy-splines. The method combines an image-based modelling system with usual Computer-Aided Design (CAD) modelling strategies.

Keywords: conceptual design; computer-aided design; CAD; sketch recognition; virtual modelling; object contours; perception modelling; product design; contour models; fuzzy data.

DOI: 10.1504/IJCAT.2007.015712

International Journal of Computer Applications in Technology, 2007 Vol.30 No.3, pp.157 - 162

Available online: 10 Nov 2007 *

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