Table 1 Shape descriptors for each of the 12 curvature subsets
From: Skin injury model classification based on shape vector analysis
Descriptors d i | Description |
|---|---|
{d 0,…,d 39} | Frequencies of Euclidean distance to other vertices contained in the subset S n with n∈{0,…,11} , counted within boundaries of 40 bins. |
{d 40} | Ratio of maximum and mean distance between vertices [28, 29]. |
{d 41} | Ratio of maximum and median distance between vertices [28, 29]. |
{d 42} | Volume of the convex hull for the vertices set belonging to each curvature domain [30]. |
{d 43} | Surface of the convex hull for the vertices set belonging to each curvature domain [30]. |
{d 44} | |
{d 45} | Total number of vertices [30]. |
{d 46,…,d 55} | Number of vertices within each sphere of a series of differently sized 10 concentric spheres around the origin [31, 32]. |
{d 56,…,d 95} | Fourier transform of the frequency distribution in the curvature histogram [28]. |
{d 96,…,d 105} | Fourier transform of the point distribution in the spheres series [28, 31, 32]. |
{d 106} | Number of hyperbolic points [33]. |