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https://hdl.handle.net/2440/67312
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Type: | Conference paper |
Title: | Level set tracking with dynamical shape priors |
Author: | Zhou, X. Li, X. Hu, W. |
Citation: | 2008 IEEE International Conference on Image Processing : ICIP 2008 : Proceedings: pp.1540-1543 |
Publisher: | IEEE |
Publisher Place: | Online |
Issue Date: | 2008 |
ISBN: | 9781424417643 |
Conference Name: | IEEE International Conference on Image Processing (15th : 2008 : San Diego, California) |
Statement of Responsibility: | Xue Zhou, Xi Li and Weiming Hu |
Abstract: | Dynamical shape priors are curical for level set-based non- rigid object tracking with noise, occlusions or background clutter. In this paper, we propose a level set tracking framework using dynamical shape priors to capture contours changes of an object in a periodic action sequence. The framework consists of two stages - off-line training and on-line tracking. During the off-line training stage, a graph- based dominant set clustering (DSC) method is applied to learn a shape codebook with each codeword representing a certain shape mode. Then a codeword transition matrix is learnt to characterize the temporal correlations of contours of an object. During the on-line tracking stage, we fuse the knowledge of shape priors and current observations, and adopt maximum a posteriori (MAP) estimation to predict the current shape mode. The experimental results on synthetic and real video sequences demonstrate the effectiveness of our method. |
Keywords: | Tracking level set markov model dynamical shape priors |
Rights: | ©2008 IEEE |
DOI: | 10.1109/ICIP.2008.4712061 |
Published version: | http://dx.doi.org/10.1109/icip.2008.4712061 |
Appears in Collections: | Aurora harvest 5 Computer Science publications |
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