Fitting, Comparison, and Alignment of Trajectories on Positive Semi-Definite Matrices with Application to Action Recognition

1 Aug 2019Benjamin SzczapaMohamed DaoudiStefano BerrettiAlberto Del BimboPietro PalaEstelle Massart

In this paper, we tackle the problem of action recognition using body skeletons extracted from video sequences. Our approach lies in the continuity of recent works representing video frames by Gramian matrices that describe a trajectory on the Riemannian manifold of positive-semidefinite matrices of fixed rank... (read more)

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