Serena Morigi Lothar Reichel Fiorella Sgallari An Edge-Preserving Multilevel Method for Deblurring, Denoising, and Segmentation. 426-438 2009 SSVM http://dx.doi.org/10.1007/978-3-642-02256-2_36 conf/scalespace/2009 db/conf/scalespace/ssvm2009.html#MorigiRS09