Classification of 3D-body Curved Surface Shape of Adult Females in the Extensive Age Group Using Angle Curvatures

For the purpose of custom-made garment design, the 3D-body curved surface shapes of 1,348 females in an extensive age group were investigated using the angle values of three curvatures (Kc, kc, and Hc) by multivariate analysis. The nine 3D shape types (three types in the 30s and 40s age groups, two types in the 50s age group, and one type of the 60s age group) were categorized by using each sum angle value of the elliptical (+Kc), the hyperbolic (–Kc), the convex (+Hc), and the concave (–Hc) curved shapes in ten areas. The different features of the 3D shape types mainly displayed higher or lower convex elliptical and concave hyperbolic curved shapes in the neck, shoulder, chest, sides of trunk, and arms areas. Age also factored into the 3D shape types, and was particularly notable in the differences between the higher convex elliptical curved shape of the 50s and 60s age groups and the lower convex elliptical curved shape of the 30s and 40s age groups in the abdomen, buttocks, and legs areas. Several 3D-body shape types were extracted in the concrete body forms and angle curvature values and were provided as useful information for numerically developing visual designs in custom-made garments.