Finding Perceptually Closed Paths in Sketches and Drawings
IEEE Transactions on Pattern Analysis and Machine Intelligence
Digitalization of paper sketches integration of the non digital draft
DPPI '11 Proceedings of the 2011 Conference on Designing Pleasurable Products and Interfaces
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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.