Open Access

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

EURASIP Journal on Advances in Signal Processing20022002:793184

DOI: 10.1155/S1110865702203121

Received: 26 July 2001

Published: 26 June 2002

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 https://static-content.springer.com/image/art%3A10.1155%2FS1110865702203121/MediaObjects/13634_2001_Article_900_IEq1_HTML.gif 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.

Keywords

video segmentation region-based active contour parametric active contour B-spline interpolation

Authors’ Affiliations

(1)
I3S Laboratoire, UPRES-A 6070 CNRS, Université de Nice-Sophia Antipolis

Copyright

© Precioso and Barlaud 2002