@inproceedings{Rodner08:DBF,
author = {Erik Rodner and Herbert Süße and Wolfgang Ortmann and Joachim Denzler},
booktitle = {IAPR Workshop on Document Analysis Systems},
title = {Difference of Boxes Filters Revisited: Shadow Suppression and Efficient Character Segmentation},
pages = {263-269},
year = {2008},
}