An improved mean shift tracking method based on nonparametric clustering and adaptive bandwidth
| Title | An improved mean shift tracking method based on nonparametric clustering and adaptive bandwidth |
| Publication Type | Conference Papers |
| Year of Publication | 2008 |
| Authors | Zhuolin Jiang, Li S-F, Jia X-P, Zhu H-L |
| Conference Name | Machine Learning and Cybernetics, 2008 International Conference on |
| Date Published | 2008/07// |
| Keywords | adaptive bandwidth, appearance model, bandwidth matrix, Bhattacharyya coefficient, color information, color space partitioning, image colour analysis, iterative procedure, kernel bandwidth parameter, kernel density estimate, log-likelihood function, mean shift tracking method, modified weight function, nonparametric clustering, Object detection, object representation, object tracking, pattern clustering, similarity measure, spatial layout, target candidate, target model, tracking |
| Abstract | An improved mean shift method for object tracking based on nonparametric clustering and adaptive bandwidth is presented in this paper. Based on partitioning the color space of a tracked object by using a modified nonparametric clustering, an appearance model of the tracked object is built. It captures both the color information and spatial layout of the tracked object. The similarity measure between the target model and the target candidate is derived from the Bhattacharyya coefficient. The kernel bandwidth parameters are automatically selected by maximizing the lower bound of a log-likelihood function, which is derived from a kernel density estimate using the bandwidth matrix and the modified weight function. The experimental results show that the method can converge in an average of 2.6 iterations per frame. |
| DOI | 10.1109/ICMLC.2008.4620880 |