Wrapping snakes for improved lip segmentation

Authors:
Matthew Ramage;Euan Lindsay
Affiliations:
Dept. of Mechanical Engineering, Curtin University of Technology, GPO Box U1987, Perth, WA 6845, Australia;Dept. of Mechanical Engineering, Curtin University of Technology, GPO Box U1987, Perth, WA 6845, Australia
Venue:
ICASSP '09 Proceedings of the 2009 IEEE International Conference on Acoustics, Speech and Signal Processing
Year:
2009

Citing 0
Cited 2

Lip reading of hearing impaired persons using HMM

Expert Systems with Applications: An International Journal
Robust AAM-based audio-visual speech recognition against face direction changes

Proceedings of the 20th ACM international conference on Multimedia

Quantified Score

Hi-index	0.00

Visualization

Abstract

A key step in the process of lip-reading is determining the shape of the speaker's lips. This has previously been achieved through an energy method known as “snakes”, however this approach has some limitations. This paper presents an adapted approach called wrapping snakes, where the image forces are modified based on the snake's location and orientation. This modification encourages wrapping snakes to continue along features they have already partially found, overcoming one of the problems of traditional snakes. The use of wrapping snakes allows for more accurate and robust lip segmentation, as well as increasing the speed of the segmentation.