On the Combination of Ridgelets Descriptors for Symbol Recognition Oriol Ramos Terrades author Ernest Valveny author Salvatore Tabbone author 2007 DAG exported from refbase (http://refbase.cvc.uab.es/show.php?record=886), last updated on Wed, 22 Jan 2014 12:52:38 +0100 text DAG @ dag @ RVT2007 Seventh IAPR International Workshop on Graphics Recognition GREC 2007 conference publication 18–20