We contribute through this work to the design of a novel variational framework able to match and recognize multiple instances of multiple reference logos in image archives. Reference logos as well as test images, are seen as constellations of local features (interest points, regions, etc.) and matched by minimizing an energy function mixing (i) a ﬁdelity term that measures the quality of feature matching (ii) a neighborhood criterion which captures feature co-occurrence/geometry and (iii) a regularization term that controls the smoothness of the matching solution. We also introduce a detection/recognition procedure and we study its theoretical consistency. Finally, we show the validity of our method through extensive experiments on the challenging MICC-Logos dataset overtaking, by 20%, baseline as well as state-of-the-art matching/recognition procedures.
Context-Dependent Logo Matching and Recognition / Hichem, Sahbi; Lamberto, Ballan; Serra, Giuseppe; Alberto Del, Bimbo. - In: IEEE TRANSACTIONS ON IMAGE PROCESSING. - ISSN 1057-7149. - STAMPA. - 22:3(2013), pp. 1018-1031. [10.1109/TIP.2012.2226046]