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Velocity-Guided Tracking of Deformable Contours in Three Dimensional Space

  • Reuven Zaritsky
  • Natan Peterfreund
  • Nahum Shimkin
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 1842)

Abstract

This paper presents a 3D active contour model for boundary tracking, motion analysis and position prediction of non-rigid objects, which applies stereo vision and velocity control to the class of deformable contour models, known as snakes. The proposed contour evolves in three dimensional space in reaction to a 3D potential function, which is derived by projecting the contour onto the 2D stereo images. The potential function is augmented by a velocity term, which is related to the three dimensional velocity field along the contour, and is used to guide the contour displacement between subsequent images. This leads to improved spatio-temporal tracking performance, which is demonstrated through experimental results with real and synthetic images. Good tracking performance is obtained with as little as one iteration per frame, which provides a considerable advantage for real time operation.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2000

Authors and Affiliations

  • Reuven Zaritsky
    • 1
  • Natan Peterfreund
    • 2
  • Nahum Shimkin
    • 1
  1. 1.Department of Electrical EngineeringTechnion - Israel Institute of TechnologyHaifaIsrael
  2. 2.Oak Ridge National LaboratoryOak RidgeUSA

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