1. Ansaldi, S., De Floriani, L., Falcidieno, B.: Geometric modeling of solid objects by using a face adjacency graph representation. In: ACM SIGGRAPH Computer Graphics, vol. 19, no. 3, pp. 131–139. ACM, July 1985
2. Bertrand, G.: Simple points, topological numbers and geodesic neighborhoods in cubic grids. Pattern Recogn. Lett. 15, 1003–1011 (1994)
3. Lecture Notes in Computer Science;DE Cardoze,2006
4. Costanza, E., Robinson, J.: A region adjacency tree approach to the detection and design of fiducials. In: Video, Vision and Graphics, pp. 63–99 (2003)
5. Cucchiara, R., Grana, C., Prati, A., Seidenari, S., Pellacani, G.: Building the topological tree by recursive FCM color clustering. In: Object Recognition Supported by User Interaction for Service Robots, vol. 1, pp. 759–762. IEEE, August 2002