Classification Features of 3D-body Curved Surface Shapes of Adult Males in the Extensive Age Group Using Angle Curvatures

From the perspective of 3D custom-made garment design, the 3D-body curved surface shapes of 1,144 males in an extensive age group (18 to 86 years old) were investigated using the angle values of three curvatures (Kc, kc, and Hc) by multivariate analysis. From the 3D data, fourteen 3D-body shape types were categorized using the sum angle values of each of the elliptical (+Kc), the hyperbolic (-Kc), the convex (+Hc), and the concave (-Hc) curved surface shapes of ten areas. There was one body type in the 20s group, three in each of the 30s, younger 40s, elder 40s groups, 50s groups, and one in the 60s group. The curvature values and the curvature color map of the 3D-body surfaces clearly displayed the difference in height between the convex elliptic curved surfaces in the abdomen, buttocks, and legs areas due to the change with age.