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Evidence-based object tracking via global energy maximization

Evidence-based object tracking via global energy maximization
Evidence-based object tracking via global energy maximization
This paper described a robust algorithm for arbitrary object tracking in long image sequences. This technique extends the dynamic Hough transform proposed in our earlier work to detect arbitrary shapes undergoing affine motion. The proposed tracking algorithm processes the whole image sequence globally. First, the object boundary is represented in lookup-table form, and we then perform an operation that estimates the energy of the motion trajectory in the parameter space. We assign an extra term in our cost function to incorporate smoothness of deformation. The object is actually rigid, so by 'deformation' we mean changes due to rotation or scaling of the object. There is no need for training or initialization, and an efficient implementation can be achieved with coarse-to-fine dynamic programming and pruning. The method, because of its evidence-based nature, is robust under noise and occlusion.
185-188
IEEE
Carter, J. N.
e05be2f9-991d-4476-bb50-ae91606389da
Lappas, P.
67163f13-e443-47e5-b384-6606c49909d2
Damper, R. I.
6e0e7fdc-57ec-44d4-bc0f-029d17ba441d
Carter, J. N.
e05be2f9-991d-4476-bb50-ae91606389da
Lappas, P.
67163f13-e443-47e5-b384-6606c49909d2
Damper, R. I.
6e0e7fdc-57ec-44d4-bc0f-029d17ba441d

Carter, J. N., Lappas, P. and Damper, R. I. (2003) Evidence-based object tracking via global energy maximization. In, 2003 International Conference on Multimedia and Expo. ICME '03. Proceedings (Cat. No.03TH8698). International Conference on Multimedia and Expo (ICME '03) (06/07/03 - 09/07/03) IEEE, pp. 185-188. (doi:10.1109/ICME.2003.1221279).

Record type: Book Section

Abstract

This paper described a robust algorithm for arbitrary object tracking in long image sequences. This technique extends the dynamic Hough transform proposed in our earlier work to detect arbitrary shapes undergoing affine motion. The proposed tracking algorithm processes the whole image sequence globally. First, the object boundary is represented in lookup-table form, and we then perform an operation that estimates the energy of the motion trajectory in the parameter space. We assign an extra term in our cost function to incorporate smoothness of deformation. The object is actually rigid, so by 'deformation' we mean changes due to rotation or scaling of the object. There is no need for training or initialization, and an efficient implementation can be achieved with coarse-to-fine dynamic programming and pruning. The method, because of its evidence-based nature, is robust under noise and occlusion.

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More information

Published date: 18 August 2003
Additional Information: Organisation: IEEE Address: Toronto, Canada
Venue - Dates: International Conference on Multimedia and Expo (ICME '03), , Baltimore, MD, United States, 2003-07-06 - 2003-07-09
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 258150
URI: http://eprints.soton.ac.uk/id/eprint/258150
PURE UUID: 4443d668-7e51-4044-9371-dea72fabb87f

Catalogue record

Date deposited: 06 Aug 2003
Last modified: 17 Mar 2024 03:11

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Contributors

Author: J. N. Carter
Author: P. Lappas
Author: R. I. Damper

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