Automatic reconstruction of silhouettes using B-splines

Authors:
Sonja Glas;Gabriel Recatalá;Michael Sorg
Affiliations:
Institute for Real-Time Computer Systems, Technische Universität Müchen, Munich, Germany;Robotic Intelligence Lab., Universitat Jaume I, Castellón, Spain;Institute for Real-Time Computer Systems, Technische Universität Müchen, Munich, Germany
Venue:
SCIA'03 Proceedings of the 13th Scandinavian conference on Image analysis
Year:
2003

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Abstract

A complete method for automated 2D reconstruction of object silhouettes by B-splines is proposed. The first step is the automated initialisation of the B-spline. A new method is developed that uses the shape information of the object's outline. The second and third steps are the methods for controlling (corresponding) and fitting (improving) the initial B-spline. These three steps complete the automated 2D representation, To show the quality of the automatically generated final B-spline a benchmark is presented where the spline approximation is compared to the ideal case in which the outline of the object is a B-spline. it will be shown that the presented method produces a highly accurate B-spline approximation of the silhouette.