Visual landmark extraction and recognition for autonomous robot navigation. - Panos E. Trahanias; Savvas Velissaris; Thodoris Garavelos (IROS, 1997)

Visual Recognition of Workspace Landmarks for Topological Navigation. - Panos E. Trahanias; Savvas Velissaris; Stelios C. Orphanoudakis (Auton. Robots, 1999)