1. Image Sequences — ten (octal) years — from phenomenology towards a theoretical foundation;Nagel;Int. J. Pattern Recognition and Artif. Intell.,1988
2. A critical survey of image analysis methods;Pavlidis,1986
3. Development in knowledge-based vision for obstacle detection and avoidance;Olin,1987
4. Detecting obstacles in range imagery;Daily,1987
5. How an ambulant observer can construct a model of the environment from the geometrical structure of the visual inflow;Koenderink,1978