F. Matusek, M. Kampel:
"Shadow Detection based on Chromaticity and Intensity Thresholding";
Talk: 11th Computer Vision Winter Workshop 2006, Telc, Czech Republik; 2006-02-06 - 2006-02-08; in: "Proceedings of the 11th Computer Vision Winter Workshop", (2006), ISBN: 80-239-6530-1; 148 - 152.