A Landform-based Approach for the Representation of Terrain Silhouettes Yann Chevriaux, Eric Saux, and Christophe Claramunt   View Paper (PDF)   Return to Session 8: Image and Shape Analysis - User Interaction Abstract The research proposed in this paper introduces a qualitative approach whose objective is to identify a computational representation of terrain features. The model developed is derived from the horizon and the forms that materialise the frontier between Earth and the sky. This frontier is represented as a silhouette and modelled as a sequence of constituent landforms. These constituent landforms give a complete set of orthogonal and sound primitives that can be used and computed to represent silh ... ©2006 Association for Computing Machinery