PT Unknown
AU Marçal Rusiñol
   Dimosthenis Karatzas
   Josep Llados
TI Spotting Graphical Symbols in Camera-Acquired Documents in Real Time
BT 10th IAPR International Workshop on Graphics Recognition
PY 2013
AB 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.
ER