Peter Jenke
Anders Hast
Avdelningen för visuell information och interaktion, Institutionen för informationsteknologi, Uppsala universitet, Sweden
Stefan Seipel
Avdelningen för visuell information och interaktion, Institutionen för informationsteknologi, Uppsala universitet, Sweden
Download article
Published in: Proceedings of SIGRAD 2010
Linköping Electronic Conference Proceedings 52:12, p. 71-74
Published: 2010-11-29
ISBN: 978-91-7393-281-3
ISSN: 1650-3686 (print), 1650-3740 (online)
In this paper we describe a method for directly generating triangle strips from unstructured point clouds based on onion peeling triangulation (OPT). It is an iterative reconstruction of the convex hulls of point clouds in the 2D plane; and it uses pairs of subsequent layers to establish triangle strips. We compare the obtained triangulations with the results of Delaunay triangulations in terms of the distribution of the symmetry of obtained triangles and in regard to the number of polygons/vertices emitted. Our initial results show that onion peeling is a straightforward method to directly obtain large triangle strips of point clouds. As expected; the triangulation is not as well behaved as in Delaunay-triangulation [VK07]. In terms of triangle complexity and average strip length OPT is a very favorable triangulation alternative which also lends suitable for the triangulation of 3D point clouds.
[AHMS94] ARKIN E.; HELD M.; MITCHELL J.; SKIENA S.: Hamiltonian triangulations for fast rendering. In Algorithms – ESA ’94; van Leeuwen J.; (Ed.); vol. 855 of Lecture Notes in Computer Science. Springer Berlin / Heidelberg; 1994; pp. 36– 47. 10.1007/BFb0049395. 1
[BRS05] BOUBEKEUR T.; REUTER P.; SCHLICK C.: Surfel stripping. In GRAPHITE ’05: Proceedings of the 3rd internationalconference on Computer graphics and interactive techniques in Australasia and South East Asia (New York; NY; USA; 2005); ACM; pp. 177–186. 1
[Cha85] CHAZELLE B.: On the convex layers of a planar set. IEEE Transactions on Information Theory IT-31; 4 (1985); 509– 517. 1
[GE04] GOPI M.; EPPSTEIN D.: Single-strip triangulation of manifolds with arbitrary topology. Computer Graphics Forum (EUROGRAPHICS) 23; 3 (2004); 371–379. 1
[Tou83] TOUSSAINT G.: Solving geometric problems with the rotating calipers. In Proceedings of IEEE MELECON ’83 (1983); pp. 10–17. 1
[Tou86] TOUSSAINT G.: New results in computational geometry relevant to pattern recognition in practice. In Pattern Recognitionin Practice II (1986); Gelsema E.; Kanal L.; (Eds.); pp. 135–146. 1
[VK07] VAN?E ?C EK P.; KOLINGEROVÁ I.: Comparison of triangle strips algorithms. Computers & Graphics 31; 1 (2007); 100 – 118. 1; 3
