This book constitutes the thoroughly refereed post-proceedings of an i nternational workshop on sensor based intelligent robots held in Dagst uhl Castle, Germany in September/October 1998. The 17 revised full pap ers presented were carefully reviewed for inclusion in the book. Among the topics addressed are robot navigation, motion planning, autonomou s mobile robots, wheelchair robots, interactive robots, car navigation systems, visual tracking, sensor based navigation, distributed algori thms, computer vision, intelligent agents, robot control, and computat ional geometry.