Marko Tscherepanow Frank Zöllner M. Hillebrand Franz Kummert Automatic Segmentation of Unstained Living Cells in Bright-Field Microscope Images. 158-172 2006 MDA http://dx.doi.org/10.1007/978-3-540-70715-8_13 conf/massdata/2008 db/conf/massdata/mda2008.html#TscherepanowZHK06