A Novel Space-Time Representation on the Positive Semidefinite Cone for Facial Expression Recognition

ICCV 2017 Anis KacemMohamed DaoudiBoulbaba Ben AmorJuan Carlos Alvarez-Paiva

In this paper, we study the problem of facial expression recognition using a novel space-time geometric representation. We describe the temporal evolution of facial landmarks as parametrized trajectories on the Riemannian manifold of positive semidefinite matrices of fixed-rank... (read more)

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