Paper Info
Title
Fast Intersection-Free Offset Surface Generation From Freeform Models With Triangular Meshes
Abstract
A fast offset surface generation approach is presented in this paper to construct intersection-free offset surfaces, which preserve sharp features, from freeform triangular mesh surfaces. The basic spirit of our algorithm is to sample a narrowband signed distance-field from the input model on a uniform grid and then employ a contouring algorithm to build the resultant offset mesh surface from the signed distance-field. Four filters are conducted to generate the narrowband signed distance-field around the offset surface in a very efficient way by alleviating computation redundancies in the regions far from the offset surfaces. The resultant mesh surfaces are generated by a modified dual contouring algorithm which relies on accurate intersections between the grid edges and the isosurfaces. A hybrid method is developed to prevent the expensive bisection search in the configurations that the analytical solutions exist. Our modified intersection-free dual contouring algorithm is based on convex-concave analysis, which is more robust and efficient. The quality and performance of our approach are demonstrated with a number of experimental tests on various examples.
Year
DOI
Venue
2011
10.1109/TASE.2010.2066563
IEEE T. Automation Science and Engineering
Keywords
Field
DocType
Surface reconstruction,Solid modeling,Computational modeling,Narrowband,Solids,Three dimensional displays,Mathematical model
Mathematical optimization,Polygon mesh,Narrowband,Computer science,Algorithm,Contouring,Geometry,Mesh generation,Offset (computer science),Grid,Triangle mesh,Computation
Journal
Volume
Issue
ISSN
8
2
1545-5955
Citations 
PageRank 
References 
19
0.78
16
Authors
2
Name
Order
Citations
PageRank
Shengjun Liu111613.79
Charlie C. L. Wang21280100.10