TY - CONF AU - Farshad Nourbakhsh AU - Dimosthenis Karatzas AU - Ernest Valveny A2 - DAS PY - 2010// TI - A polar-based logo representation based on topological and colour features BT - 9th IAPR International Workshop on Document Analysis Systems SP - 341–348 N2 - In this paper, we propose a novel rotation and scale invariant method for colour logo retrieval and classification, which involves performing a simple colour segmentation and subsequently describing each of the resultant colour components based on a set of topological and colour features. A polar representation is used to represent the logo and the subsequent logo matching is based on Cyclic Dynamic Time Warping (CDTW). We also show how combining information about the global distribution of the logo components and their local neighbourhood using the Delaunay triangulation allows to improve the results. All experiments are performed on a dataset of 2500 instances of 100 colour logo images in different rotations and scales. SN - 978-1-60558-773-8 UR - http://dx.doi.org/10.1145/1815330.1815374 N1 - DAG ID - Farshad Nourbakhsh2010 ER -