Although focusing on radar return data for "Echo Tops" and "Merged Reflectivity Composite" maps, these techniques are applicable to any set of planar images.

Find a planar point set the distance between two points of a recent algorithm, VS2010 compile.

Based on geometry and convex set methods, this paper gives systemically the definitions of global and local convexity for planar closed parametric curve, and proves the two definitions are equivalent.