Research On Fast And Realistic 3D Geometric Modeling And Reconstruction Of Human Body

As a basic task in the field of computer graphics,computer vision,etc.acquiring human body surface 3D geometry information has very extensive application value in virtual reality,textile and garment,three dimensional measuring,etc.For 3D human body scans and data acquisition,Kinect for Windows is minted by Microsoft has a significant advantage in collecting the depth of the human body surface information and color images real-time,it is very suitable for establishing a low cost and convenient human body 3D scans and reconstruction system,because its low cost,compact structure,and the less influence of texture and lighting.In this paper,a human body 3D scanning system which can scan and acquire high-precision data is constructed by using multiple Kinect cameras,and the 3D model of human body surface is reconstructed with the data acquired by the system.Therefore,the main research work in this paper is as follows:A single Kinect obtains the poor quality of the human body’s three-dimensional data,while the use of multi-Kinect access to data between the equipments will have mutual interference problem,this article based on three Kinect designed a system that can improve access to data quality and avoid interference.In the process of reconstruction of the model,the problem of error accumulation in the reconstruction of the model with non-rigid registration method is proposed.In this paper,a globally optimized strategy is adopted to eliminate the influence of errors.After optimization,the registration effect of three-dimensional model is better.Aiming at the problem of defect and degeneration and self-intersection of three-dimensional human body model,in this paper,a new method to repair the defects of the mesh model is proposed.The topological relation of the original input model is repaired by topology reconstruction,and the swap/collapse strategy is adopted to deal with the degenerate triangles and self-intersection problem,which improves the geometric correction of the polygon mesh.After the repair is completed,the result is a single topological space mesh model,at the same time,the topological structure defect is repaired,and the degradation and self-intersection defect of the model are effectively eliminated.Finally,in the application of human body 3D reconstruction model,this paper attempts to track human pose real-time based on the specific human template model in 3D virtual fitting technology.In this paper,three improved strategies are proposed to improve the posture tracking.The improved posture tracking method can track the posture of the tester more accurately and maintain the same topology structure with time going.