Chris Jaynes, Robert Collins, Yong-Qing Cheng, Xiaoguang Wang, Frank Stolle, Howard Schultz, Allen Hanson, and Edward Riseman, "Automatic Construction of Three-Dimensional Models of Buildings," RADIUS: Image Understanding for Imagery Intelligence, O.Firschein and T.Strat, eds, Morgan Kaufmann, 1996, pp. 223-236.
Some of these strateies have a bottom-up flavor and are meant to be applied to fairly large sets of primitive elements in the absence of strong contextual constraints. Top-down strategies, on the other hand, control the combinatoric problem by reducing the size of the input set of elements through the use of appropriate spatial and model-based constraints. Currently we are examining the control and representation issues associated with an automated controller. The utility of these strategies is demonstrated by a set of case studies involving various types of roofs.