Labial teeth and gingiva color image segmentation for gingival health-state assessment. - Timo Eckhard; Eva M. Valero; Juan Luis Nieves (CGIV, 2012)

Improved Spectral Density Measurement from Estimated Reflectance Data with Kernel Ridge Regression. - Timo Eckhard; Maximilian Klammer; Eva M. Valero; Javier Hernández-Andrés (ICISP, 2014)