The Research Of Feature-based Parametric Garment Human Body Modeling

In recent years, with the repaid development of the internet and e-commerce, the garment MTM manufacture and the virtual try-on become the future trend of the garment industry. The individualized customization of garment industry have huge commercial opportunities. Currently, the problem that urgent to be resolved in the invidualized customization industry is how to model 3D individualized and integrate it with garment CAD . The problem arouses many research institutions and garment industry's great attention, and become one of the research focuses. The traditional individual 3D virtual human modeling method has drawbacks of mass data and complex post-processing. It does not suit the Web application. According to these drawbacks ,the research presented in this thesis proposes a novel real-time approach of 3D human parameterized modeling based on feature .According to the principle in Anthropometry, Anatomyand Aesthetics, considering the distribution of feature points and feature curves on the body surface, the method integrates feature design with parametric design.The hierarchy parameter drive mechanism is researched using the hierarchy parameter drive design thought. The parameter drive mechanism based on human proportion and Mathematical Statistics Method on Anthropometry database is proposed, and the parametric human modeling with some key measurements is realized.The modeling method of human cross-sections and feature curves that simulated by the hyperelliptic curves or the combination of hyperelliptic curves is researched. With the the NURBS surface fitting technology, the model of torso and limbs are made. The thesis analyses the process of feature points choice, the computation of NURBS surface control net according to feature points, NURBS surface fitting and researchs the technology about how to splice the torso surface and limb surface fairing. A prototype parametric model system based on feature is designed and developed. The applications on MTM, virtual try-on and virtual human motion with the model method are also researched on the system.In the end, the thesis summarizes the research work and gives perspectives of technology and application of the project.