System and method for characterizing 2-dimensional shapes by compactness measurements

摘要

A method of classifying a shape in a digitized image includes determining a normalized compactness C_DN for an object in said image from the formula $C_{\mathrm{DN}}=\frac{\mathrm{Tn}-P}{\mathrm{Tn}-4\sqrt{n}},$ wherein T is the connectivity of the object, n is the number of pixels in the object, and P is the length of the perimeter of the object, and classifying said object based on its normalized compactness value.