Research On Real Time Simulation Method Of Dynamic Virtual Model Fitting Driven By Skeletal Tracking

Virtual fitting system is convenient and can greatly save time and energy,which has become a hot research of virtual simulation technology.At the same time,the flexible attribute of material,human skeletal tracking uncertainty,the complexity of movement have also increased the difficulty of the current virtual fitting.The virtual fitting field can be divided into two research directions among them,generally 2D-mapping method is real-time,but not enough to show the elasticity of the fabric,folds and other physical properties the sense of reality also need to be improved;the static three-dimensional model modeling method is fine,but not with real-time human motion.The realistic and real-time are contradictions in the virtual fitting system,In order to solve is problem,we do the following work:First of all,in order to ensure the rapid construction of three-dimensional model is true,we construct the model of cloth based on physics method,construct triangle mesh as the carrier of mass spring through triangulation method,then add a constraint equation on the basis of cloth,we can use the constraint equation to realize the property of tension,collision and so on,which effectively avoids the time-consuming problem of implicit integration and enhances the authenticity of the cloth and greatly improve the speed of cloth modeling;at the same time,the point cloud data was flexibly used to establish a three-dimensional model of the human model,which can improve the real-time of the experiment;in addition,the ingenious application of ellipsoid bounding box was used to solve the penetration problem among models,which ensures the authenticity of the fitting.Secondly,based on the realization of human movement motion capture technology and skeletal tracking technology,boldly put forward in two ways to realize the human motion,namely the interactive virtual human motion driven by the Kinect and the non interactive virtual human motion driven by the avatar animation sequence,which can greatly enrich the experimental scene and meet the different requirements of users of the virtual fitting system.Again,in order to optimize the experimental results,the method of spherical skin was used in virtual characters to avoid the appearance of skin transition fitting deformation phenomenon,which improved the sense of reality of virtual characters;at the same time,the R value on the domain decomposition was proposed to obtain the body outline,,which reduces the time complexity and get a pure human target;in addition,using the bilateral filtering to deal with the noise and edge contour,which greatly improves the accuracy of identification information by Kinect and ensures the realistic virtual fitting.Finally,we realize the real-time simulation of dynamic virtual characters fitting in two modes in the unity3 d platform,we design and complete several experiments,the experimental results show that this paper successfully realizes the real-time simulation of dynamic virtual characters fitting by Skeletal tracking and achieves realistic and real-time at the same time.