Research And Implementation On Free-Form Deformation Of Point Cloud And Fairing Technology

With the advent of the 3D printing era and the mobile Internet era, people demand for more and more 3D products hugely. And people become more and more inseparable from the mobile devices at the same time. Among them, the reverse engineering technology in the core of the printing technology is paid more attention to, and even becomes one of the important branches in computer vision field. Still studying on mobile devices is also becoming a hot spot of the present research at home and abroad. Point cloud of surface deformation and smoothing is an important part of reverse technology. In this paper, on the basis of reference literatures focus on point cloud deformation related technology are studied and discussed at home and abroad, mainly including point cloud deformation and smoothing processing. Finally implements the mobile platform based on C/S architecture engineering test. Thesis includes the following:1. The paper reviewed the background and significance of subject provides an overview of research related technical background, including reverse technology, research status quo of point cloud deformation and surface fairing, as well as concrete implementation platform required by the relevant software technology.2. The study of the point cloud free deformation related technologies, including free deformation technology and free deformation technique based on point constraints, and then introduces the related characteristics of Gaussian distribution. Then to improve the algorithm in computing speed on mobile device, based on threshold constraint point free deformation is introduced.3.3D model of fairing technology related technologies, including the Laplacian smoothing algorithm, Taubin smoothing algorithm and smoothing algorithm based on the curvature flow. Then the algorithm is improved considering problems of uneven distribution of cusp after 3D image deformed.4. The detail C/S architecture of the system overall design and the realization of each module, including functional requirements analysis, the realization of the server and client related to specific technical details.5. The point cloud of surface deformation and smoothing experiment and debugging test system is introduced in this paper, and the point cloud of surface deformation and smoothing experiment conditions, tools, and related steps. At the same time, the result of the experiment were analyzed and evaluated.