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1 Lagadic - Visual servoing in robotics, computer vision, and augmented reality IRISA-D5 - SIGNAUX ET IMAGES NUMÉRIQUES, ROBOTIQUE, Inria Rennes – Bretagne Atlantique , CRISAM - Inria Sophia Antipolis - Méditerranée 2 FLUMINANCE - Fluid Flow Analysis, Description and Control from Image Sequences CEMAGREF, Inria Rennes – Bretagne Atlantique

Abstract : This paper presents an optimal parametric active contour method based on Fourier descriptors to detect and track a contour from a sequence of images in real-time. The advan- tage of this approach is that not only convex but also concave contours can be considered. We also propose a method to ini- tialize the active contour using only three user-s clicks in the first image of the sequence and to automatically re-initialize it when possible topological changes are detected during the tracking. Moreover, the algorithm is implemented on GPU to ensure the real-time tracking performance.





Autor: Tao Li - Alexandre Krupa - Christophe Collewet -

Fuente: https://hal.archives-ouvertes.fr/



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