@inproceedings{erdogan2013group,
title={Group sparsity based sparse coding for region covariances},
author={Erdogan, Hasan Tugrul and Erdem, Esra and Erdem, A Tanju},
booktitle={Signal Processing and Communications Applications Conference (SIU), 2013 21st},
pages={1--4},
year={2013},
organization={IEEE}
}