Arnold Irschara Christopher Zach Horst Bischof 1-8 2007 ICCV https://doi.org/10.1109/ICCV.2007.4409216 https://doi.ieeecomputersociety.org/10.1109/ICCV.2007.4409216 https://www.wikidata.org/entity/Q66709320 conf/iccv/2007 db/conf/iccv/iccv2007.html#IrscharaZB07