Combining Graphical Models and PCA for Statistical Process Control. - Roland Fried; Ursula Gather; Michael Imhoff; Melanie Keller; Vivian Lanius (COMPSTAT, 2002)

Illumination Normalization for Face Recognition - A Comparative Study of Conventional vs. Perception-inspired Algorithms. - Peter Dunker; Melanie Keller (BIOSIGNALS (2), 2008)

Diffusion Filtering for Illumination Invariant Face Recognition- Illumination Approximation with Diffusion Filters within Retinex Context. - Peter Dunker; Melanie Keller (VISAPP (2), 2008)