Tracking of facial features using deformable triangles

P. P. Pradeep; Paul F. Whelan

doi:10.1117/12.463680

19 March 2003 Tracking of facial features using deformable triangles

P. P. Pradeep, Paul F. Whelan

Proceedings Volume 4877, Opto-Ireland 2002: Optical Metrology, Imaging, and Machine Vision; (2003) https://doi.org/10.1117/12.463680
Event: OPTO Ireland, 2002, Galway, Ireland

Abstract

In this paper we present a novel algorithm to track the facial features using a deformable triangle model. The face is modeled as an isosceles triangle connecting the eyes and lips which are called as features of interest (FoI). A maximum likelihood estimator is used to estimate the position of such a triangle in the image sequences by maximizing the correlation value of the feature template in the image and also the probability that the resulting structure represents a face structure. A method is proposed to remove the noise in the obtained structure by projecting it into a shape subspace of isosceles triangles. Burst error in tracking is removed by using a Kalman filter. The algorithm can successfully locate and track the facial features on two sets of video sequences obtained in the laboratory under normal lighting condition with a cluttered background.

Citation Download Citation

P. P. Pradeep and Paul F. Whelan "Tracking of facial features using deformable triangles", Proc. SPIE 4877, Opto-Ireland 2002: Optical Metrology, Imaging, and Machine Vision, (19 March 2003); https://doi.org/10.1117/12.463680

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