Enhanced snake model and modified H∞ for lips contour detection and tracking

S W Chin; K P Seng; Li-Minn Ang

doi:10.1109/ICCAIE.2010.5735017

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Enhanced snake model and modified H∞ for lips contour detection and tracking

Conference paper

Peer reviewed

Enhanced snake model and modified H∞ for lips contour detection and tracking

S W Chin, K P Seng and Li-Minn Ang

2010 International Conference on Computer Applications and Industrial Electronics, ICCAIE 2010, pp.659-664

International Conference on Computer Applications and Industrial Electronics (ICCAIE 2010), 2010 (Kuala Lumpur, Malaysia, 05-Dec-2010–07-Dec-2010)

Institute of Electrical and Electronics Engineers

2010

DOI: https://doi.org/10.1109/ICCAIE.2010.5735017

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Abstract

Active contour model

H∞ filter

Lips contour detection

Lips tracking

Lyapunov stability theory

Watershed

Contour detection

External force

Feature point

Simulation result

Snake model

Tracking capability

Tracking errors

Tracking system

An automatic lips contour detection and tracking using an enhanced snake model and modified is presented in this paper. For the conventional snakes, the resultant contour would be converged wrongly if the initial snake point is situated far from the lip edges, or with the existence of the tongue and teeth. Consequently, a new external force based on watershed approach is proposed and absorbed into the conventional snake model to deal with the presence of tongue and teeth. Furthermore, a modified tracking system is proposed to keep track on the succeeding lips feature points as the initialization of the snake model to detect the lips contour. The modification of the conventional is based on the LST to assure that the proposed tracking approach is always stable and as the time approaches to infinity, the tracking error would be converged to zero. With both the modified that offer a better tracking capability compared to the conventional and the enhanced snakes model with the watershed based external force, the proposed system provide a more precise snakes convergence to the final desired lips contour and the overall simulation results have shown an appreciable performance.

Details

Title: Enhanced snake model and modified H∞ for lips contour detection and tracking
Authors: S W Chin (Author) - University of Nottingham Malaysia Campus
K P Seng (Author) - University of Nottingham Malaysia Campus
Li-Minn Ang (Author) - University of Nottingham Malaysia Campus
Publication details: 2010 International Conference on Computer Applications and Industrial Electronics, ICCAIE 2010, pp.659-664
Conference details: International Conference on Computer Applications and Industrial Electronics (ICCAIE 2010), 2010 (Kuala Lumpur, Malaysia, 05-Dec-2010–07-Dec-2010)
Publisher: Institute of Electrical and Electronics Engineers
Date published: 2010
DOI: 10.1109/ICCAIE.2010.5735017
ISBN: 9781424490547
Organisation Unit: University of the Sunshine Coast, Queensland; School of Science, Technology and Engineering; Engage Research Lab
Language: English
Record Identifier: 99513800502621
Output Type: Conference paper

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