Skeletonization of ribbon-like shapes with new wavelet function

In this paper we propose a new scheme to extract the skeleton of ribbon-like shape with a novel wavelet function. It consists of two phases based on these perfect properties of the new wavelet function; and symmetry analyses of maxima moduli of wavelet transform are given. Midpoints of all pairs of contour elements are connected to generate a skeleton of the shape, which is defined as wavelet skeleton. Four basic criteria for modifying the artifacts of wavelet skeleton are presented. A corresponding algorithm is developed, and the experimental results are shown that this algorithm is capable of extracting exactly the skeleton of ribbon-like shape with different widths as well as different grey-levels.