Research On Three-dimensional Dynamic Model Of The Human Body Based On The Conformal Geometric Algebra

With the increasing popularity of the Internet, personalized costume gets correspondingly more attention. Currently online sales have been accepted by more and more consumers, especially that online sales of clothing products continue increasing in recent years. However, in the process of online shopping, the consumers often cannot verify the size, style and the feeling of the clothing by putting them on. The current online fitting platforms are mostly static, the real effect of putting them on and moving cannot be manifested through these static platforms, thus affecting customer to make decisions. Therefore, the research and development of individualized three-dimensional dynamic body model can provide more convenience for online clothing sales.This paper is a sub-subject about the research on digital clothing, obtain users' individualized body information through various effective methods to establish 3d model of the human body, the mainly work are as follows:(1) Currently, there are many kinds of 3D model animations of the human body, the most popular one is Skinned Mesh. This paper takes in the advantages of Skinned Mesh, picks up the joints of body models, constructs skeleton model, to realize the binding process of skeleton model and skin mesh, achieving the animation of the models through the movement of the skeleton to drive skin mesh to move. Make use of the thoughts of deformation animation, and use radial basis layered approach to deal with the distortion of the skin mesh in the moving process.(2) This paper will apply the geometric algebra to 3D body modeling, and uses it to describe the 3D body model and calculate the results. The advantage of conformal geometric algebra method as quick, simple and high efficient can be fully shown in the calculating process. (3) This paper designed and finally completed 3D virtual human body generation system, and realized the 3D dynamic model of human body, including the system framework, system's internal program design and the realization of each module。Finally, we make a summary to all the work, point out that the theory and application of 3D human body animation model need further in-depth research in the future.