Research Of The Key Technologies Of Electronic Fitting System Based On3D Measurement

With the development of computer technology，include software and hardware,thedemand for the3D garment CAD, virtual wearing and digital of garment customizationtechnology is increasing clearly. Its basic research has been fully commenced with initialresults.The paper is based on the geometry theory which is related to digital of3D garment,using computer graphics technology, realize electronic fitting system which is based on3Dnon-contact measurement.First of all, based on laser triangulation theory and use of non-contact measurementdevice for mannequin, it has been required for the point cloud data. Using3D data processingsoftware to preprocess the point cloud data, including the deletion of scattered data,coordinate transformation operation, on the basis of that to determine surface characteristiccurves as well as its feature points coordinates of the mannequin, laid the foundation for thefollowing study. After acquired the ideal point cloud data, based on the theory and methods oftriangulation of scattered data, realize3D human modeling. Based on research the methods ofthe composed developable surface, use of characteristic curves, constructed the developablesurfaces of the garment surface, achieve with realistic3D garment design.At the specific procedures, using Visual C++6.0as development platform, applicationof the basic MFC class library, realize electronic fitting system’s interface. With the PGM (M)standard female mannequin, as well as fitness clothing as an example, based on the theory of3D modeling and the mathematical model of3D,with OpenGL for graphics developmenttools, application C++language programming, establish3D model of human clothing.Realize3D electronic fitting system through using modeling, conversion, light processing,color processing, animation and other advanced function of OpenGL.The paper makes the train of thought in the field of theory analyse, on the base of datasurvey, in the medium of computer graphics. It constructed the3D human body and garment,and realize its visualization, makes the theory and practice become ones unite.