- vol.13, no.1, 1994-03-15
Two methods of describing women's two-dimensional and three-dimensional (3D) body shape, and the related simulation studies are stated. The both methods fit a shape model to surface data of a woman, and utilize the obtained model parameters for shape description. In the first method the model is derived by adaptive subdivision of the body surface into tiny subregions that approximate the surface with high precision, and its parameters are the locations of vertices of the subregions. The second method is based on a B-spline surface fitting to the body surface. The coordinates of the resulting control points are the model parameters. Average body shape can easily be given by averaging corresponding parameter values over many women. Abdominal shape change during pregnancy is represented in the principal component space of body shape and possibility of shape change simulation is stated. The body surface can be transformed into planar development through the 3D B-spline model and related to designing patterns of a brassiere. Skin structure and color are also modeled to simulate real skin texture and to map it on the 3D model surface generated by the second method.