Local 3D Shape Analysis for Facial Expression Recognition

Ahmed Maalej (1, 2) , Boulbaba Ben Amor (1, 2) , Mohamed Daoudi (1, 2) , Anuj Srivastava (3) , Stefano Berretti (4)

1 LIFL - FOX MIIRE
2 Institut TELECOM/TELECOM Lille1
3 Department of Statistics [Tallahassee, FL]
4 DSI - Dipartimento di Sistemi e Informatica

We investigate the problem of facial expression recognition using 3D face data. Our approach is based on local shape analysis of several relevant regions of a given face scan. These regions or patches from facial surfaces are extracted and represented by sets of closed curves. A Riemannian framework is used to derive the shape analysis of the extracted patches. The applied framework permits to calculate a similarity (or dissimilarity) distances between patches, and to compute the optimal deformation between them. Once calculated, these measures are employed as inputs to a commonly used classification techniques such as AdaBoost and Support Vector Machines (SVM). A quantitative evaluation of our novel approach is conducted on a subset of the publicly available BU-3DFE database.

Mots clés: 3D facial expression recognition; binary classification; shape analysis

Domaines: Vision par ordinateur et reconnaissance de formes [cs.CV]

Ahmed Maalej, Boulbaba Ben Amor, Mohamed Daoudi, Anuj Srivastava, Stefano Berretti. Local 3D Shape Analysis for Facial Expression Recognition. 20th International Conference on Pattern Recognition (ICPR 2010), Aug 2010, Istanbul, Turkey. pp.4129 - 4132. ⟨hal-00662321⟩