Felix Lustenberger David Beyeler Edo Franzi Peter Seitz Thierry Zamofing A Universal Method for Hierarchical Object Recognition based on Low-Power Vision Sensors. 1209 2007 conf/iscas/2007 ISCAS http://doi.ieeecomputersociety.org/10.1109/ISCAS.2007.378325 db/conf/iscas/iscas2007.html#LustenbergerBFSZ07