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Extraction of face image edges with application to expression analysis

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4 Author(s)
Jiatao Song ; Inst. of Inf. & Commun. Eng., Zhejiang Univ., Hangzhou, China ; Zheru Chi ; Jilin Liu ; Hong Fu

This paper presents a new method for the extraction of face image edges and a scheme for facial expression analysis based on the binary edge images (BEIs). Making use of the multi-resolution property of wavelet transform, the edge detection method includes two binarization steps and a noise removing step. Our method provides a robust solution to face image edge extraction, in particular, if changes of lighting conditions are encountered. Experimental results show that different components in a BEI are well separated and pixels of the same face component are connected well. Preliminary experimental results on facial expression analysis on the subsets of AR and Yale face databases show that a satisfactory recognition rate can be achieved when our facial analysis scheme is used for recognizing four action units.

Published in:

Control, Automation, Robotics and Vision Conference, 2004. ICARCV 2004 8th  (Volume:2 )

Date of Conference:

6-9 Dec. 2004

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