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• W2343014348 abstract "We present a novel level-set tracking framework that incorporates spatial information.For tracking, a new rigid registration method is proposed.For segmentation, a new level-set evolution method is proposed.Our method shows significantly improved performance in tracking non-rigid objects. Level-set is a widely used technique in segmentation-based tracking due to its flexibility in handling 2D topological changes and computational efficiency. Most existing level-set models aim at grouping pixels that have similar features into a region, without consideration of the spatial relationship of these pixels. In this paper, we present a novel level-set tracking method that incorporates spatial information to improve the robustness and accuracy of tracking non-rigid objects. Both tracking and segmentation are performed in a unified probabilistic framework, with additional spatial constraints from a part-based model-the Hough Forests. In the stage of tracking, the rigid motion of the target object is estimated by rigid registration in both the color space and the Hough voting space. Then in the stage of segmentation, some support points are obtained from back-projection, and guide the level-set evolution to capture the shape deformation. We conduct quantitative evaluation on two recently proposed public benchmarks: a non-rigid object tracking dataset and the CVPR2013 online tracking benchmark, involving 61 sequences in total. The experimental results demonstrate that our tracking method performs comparably to the state-of-the-arts in the CVPR2013 benchmark, while shows significantly improved performance in tracking non-rigid objects." @default.
• W2343014348 created "2016-06-24" @default.
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• W2343014348 date "2016-07-01" @default.
• W2343014348 modified "2023-10-12" @default.
• W2343014348 title "Spatially constrained level-set tracking and segmentation of non-rigid objects" @default.
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• W2343014348 doi "https://doi.org/10.1016/j.jvcir.2016.04.009" @default.
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