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A shape representation based on concave and convex area along a closed curve is presented. Curvature estimation is done to the input curve and searched for its critical points. Splitting the critical ...

5 State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan, China Introduction: The formation of bars and pools, characterized by concave and convex bed ...

FIGURE 1. An epithelial structure that is typically composed of connected concave and convex with opposite directions form an s-shaped curve that can be termed “reverse curve.” It can be considered as ...

They have horizontal zinc-clad balconies with convex curved ends that play against the concave curves of the brick-clad street wall,” notes Bates Smart.