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B-Spline Active Contour with Handling of Topology Changes for Fast Video Segmentation

Abstract

This paper deals with video segmentation for MPEG-4 and MPEG-7 applications. Region-based active contour is a powerful technique for segmentation. However most of these methods are implemented using level sets. Although level-set methods provide accurate segmentation, they suffer from large computational cost. We propose to use a regular B-spline parametric method to provide a fast and accurate segmentation. Our B-spline interpolation is based on a fixed number of points depending on the level of the desired details. Through this spatial multiresolution approach, the computational cost of the segmentation is reduced. We introduce a length penalty. This results in improving both smoothness and accuracy. Then we show some experiments on real-video sequences.

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Correspondence to Frederic Precioso.

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Precioso, F., Barlaud, M. B-Spline Active Contour with Handling of Topology Changes for Fast Video Segmentation. EURASIP J. Adv. Signal Process. 2002, 793184 (2002). https://doi.org/10.1155/S1110865702203121

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  • DOI: https://doi.org/10.1155/S1110865702203121

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