@TechReport{DivoVandBier04,
author = {Oscar Divorra Escoda and Pierre Vandergheynst and Michel Bierlaire },
title = {Video Representation Using Greedy Approximations Over Redundant Parametric Dictionaries},
institution = {Operations Research Group ROSO, Ecole Polytechnique F\'ed\'erale de Lausanne},
number = {RO 2004 0919},
year = {2004}
}