Activity Driven Non-linear Diffusion for Colour Image Segmentation. - Patrick de Smet; Rui Luís Vieira Pires Marques Pires; Danny De Vleeschauwer (NMBIA, 1998)

Activity driven nonlinear diffusion for color image watershed segmentation. - Patrick de Smet; Rui Luís V. P. M. Pires; Danny De Vleeschauwer; Ignace Bruyland (J. Electronic Imaging, 1999)

Watershed segmentation and region merging. - Rui Luís V. P. M. Pires; Patrick de Smet; Wilfried Philips (VCIP, 2004)