Camille Monnier Steve Holden Magnús Snorrason Vitaly Ablavsky Sequential Correction of Perspective Warp in Camera-based Documents. 394-398 2005 conf/icdar/2005 ICDAR http://doi.ieeecomputersociety.org/10.1109/ICDAR.2005.216 db/conf/icdar/icdar2005.html#MonnierHSA05