A Particle Filter Based Non-Rigid Contour Tracking Algorithm with Regulation
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چکیده
This paper presents an active contour tracking algorithm based on the particle filter for a non-rigid object in cluttered scenes. We decompose the non-rigid contour tracking problem into three parts as transition estimation, deformation detection, and shape regulation. We use an affine transform dynamic model and employ the particle filter to estimate the parameters. We generate a probabilistic map of deformation for reshaping the object contour, followed by a projection step to constrain the contour in a shape subspace. Our experiments show that the proposed algorithm significantly improves the performance of non-rigid contour tracking, especially when the background scene is heavily cluttered.
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