论文信息 - On Reconstructing 3D Feature Boundaries

On Reconstructing 3D Feature Boundaries

AbstractRaw point data collected by 3D scanning techniques are usually rendered by building an interpolating robust polygonal mesh. This approach is accurate and fast but provides no means for large scale subsequent modifications. Only local interactive or non-interactive tools are provided that are usually targeted to correcting small imperfections and eliminating noise effects. CAD applications require robust and editable CAD models to support processes such as reproduction, design modification and redesign. In this paper we present a curve approximation method used in a feature-based approach to building feature-based CAD models from 3D point clouds. This approach is based on discovering features on the point cloud by detecting local changes in the morphology of the point cloud. This results in a number of regions that represent object features. The boundaries of the features are approximated by a collection of piecewise cubic rational Bezier curves that best fit the detected border point cloud and are...

Ioannis Fudos | Vasiliki Stamati | I. Fudos | V. Stamati

[1] Helmut Pottmann,et al. Fitting B-spline curves to point clouds by curvature-based squared distance minimization , 2006, TOGS.

[2] Vasiliki Stamati,et al. A feature based approach to re-engineering objects of freeform design by exploiting point cloud morphology , 2007, Symposium on Solid and Physical Modeling.

[3] In-Kwon Lee,et al. Curve reconstruction from unorganized points , 2000, Comput. Aided Geom. Des..

[4] Gábor Renner,et al. Method of shape description for mechanical engineering practice , 1982 .

[5] H. Yau,et al. Reverse engineering of complex geometry using rational B-splines , 1997 .

[6] Angel Cobo,et al. Bézier Curve and Surface Fitting of 3D Point Clouds Through Genetic Algorithms, Functional Networks and Least-Squares Approximation , 2007, ICCSA.

[7] David C. Gossard,et al. Multidimensional curve fitting to unorganized data points by nonlinear minimization , 1995, Comput. Aided Des..

[8] Helmut Pottmann,et al. Approximation with active B-spline curves and surfaces , 2002, 10th Pacific Conference on Computer Graphics and Applications, 2002. Proceedings..

[9] Jiing-Yih Lai,et al. Unconstrained and constrained curve fitting for reverse engineering , 2007 .

[10] Simon Flöry,et al. Constrained curve fitting on manifolds , 2008, Comput. Aided Des..

[11] Josef Hoschek,et al. Fundamentals of computer aided geometric design , 1996 .