An Aeronautical Temporal GIS for Post-Flight Assessment of Navigation Performance. - Robert Knighton; Christophe Claramunt (Trans. GIS, 2001)

Ridge-branch-based blood vessel detection algorithm for multimodal retinal images. - Ying Li; Natalie Hutchings; Robert Knighton; Giovanni Gregori; Brandon Lujan; John G. Flanagan (Image Processing, 2009)

Ridge-based retinal image registration algorithm involving OCT fundus images. - Ying Li; Giovanni Gregori; Robert Knighton; Brandon Lujan; Philip J. Rosenfeld; Byron L. Lam (Image Processing, 2011)