TY - CHAP AU - Marçal Rusiñol AU - Dimosthenis Karatzas AU - Josep Llados ED - Bart Lamiroy ED - Jean-Marc Ogier PY - 2014// TI - Spotting Graphical Symbols in Camera-Acquired Documents in Real Time T2 - LNCS BT - Graphics Recognition. Current Trends and Challenges SP - 3 EP - 10 VL - 8746 PB - Springer Berlin Heidelberg N2 - In this paper we present a system devoted to spot graphical symbols in camera-acquired document images. The system is based on the extraction and further matching of ORB compact local features computed over interest key-points. Then, the FLANN indexing framework based on approximate nearest neighbor search allows to efficiently match local descriptors between the captured scene and the graphical models. Finally, the RANSAC algorithm is used in order to compute the homography between the spotted symbol and its appearance in the document image. The proposed approach is efficient and is able to work in real time. SN - 0302-9743 SN - 978-3-662-44853-3 UR - http://dx.doi.org/10.1007/978-3-662-44854-0_1 N1 - DAG; 600.045; 600.055; 600.061; 600.077 ID - Marçal Rusiñol2014 ER -