Fundamentals of digital image processing
Fundamentals of digital image processing
Face Detection in Color Images
IEEE Transactions on Pattern Analysis and Machine Intelligence
Lip feature extraction using red exclusion
VIP '00 Selected papers from the Pan-Sydney workshop on Visualisation - Volume 2
Determining facial expressions in real time
ICCV '95 Proceedings of the Fifth International Conference on Computer Vision
An Approach to Statistical Lip Modelling for Speaker Identification via Chromatic Feature Extraction
ICPR '98 Proceedings of the 14th International Conference on Pattern Recognition-Volume 1 - Volume 1
Robust Real-Time Face Detection
International Journal of Computer Vision
A Novel Motion Based Lip Feature Extraction for Lip-Reading
CIS '08 Proceedings of the 2008 International Conference on Computational Intelligence and Security - Volume 01
Computer Vision: Algorithms and Applications
Computer Vision: Algorithms and Applications
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Estimation of the area of mouth opening from a video of the speaker's face and processing of the simultaneously recorded speech signal can be used for estimation of vocal tract shape during speech production. A technique is presented to estimate the area of mouth opening, using a processing based on contrast enhancement with multi-threshold binarization and connected component detection for reducing the errors in estimating the vertical opening due to the presence of teeth and tongue in mouth opening. The method is tested on vowel utterances from 12 speakers.