Ralf Dragon Christian Becker Bodo Rosenhahn Jörn Ostermann Reading from Scratch - A Vision-System for Reading Data on Micro-structured Surfaces. 402-411 2009 DAGM-Symposium http://dx.doi.org/10.1007/978-3-642-03798-6_41 conf/dagm/2009 db/conf/dagm/dagm2009.html#DragonBRO09