Carolina Toledo Ferraz Luis Gustavo Nonato José Alberto Cuminato An Edge-Preserving Multigrid-Like Technique for Image Denoising. 126-137 2006 conf/iciar/2006-1 ICIAR (1) https://doi.org/10.1007/11867586_12 db/conf/iciar/iciar2006-1.html#FerrazNC06