Title: Divergence analysis of discrete 2-d shapes
Authors: Brunner, David
Brunnett, Guido
Citation: Journal of WSCG. 2010, vol. 18, no. 1-3, p. 57-64.
Issue Date: 2010
Publisher: Václav Skala - UNION Agency
Document type: článek
URI: http://wscg.zcu.cz/WSCG2010/Papers_2010/!_2010_J_WSCG-2010_1-3.pdf
ISBN: 978-80-86943-89-3
ISSN: 1213–6972 (hardcover)
1213–6980 (CD-ROM)
1213–6964 (online)
Keywords: popis 2D tvarů;bilaterální filtr;skeletonizace;křivkové skeletony
Keywords in different language: 2D shape descriptor;bilateral filter;skeletonizations;curve skeletons
Abstract: In this paper we introduce a second order differential operator in order to partition discrete objects into meaningful parts. One of these parts contains all points of the object’s medial axis which is a widely used shape descriptor. Since aliasing is a fundamental problem for methods based on the boundary of discrete objects we use a bilateral filter to reduce the artefacts significantly. As a result of the partitioning and filtering we obtain a lattice point set (a superset of the medial axis) which is robust against noise and aliasing and which is rotationally invariant. The lattice point set can be used for instance to compute the medial axis or similar shape descriptors.
Rights: © Václav Skala - UNION Agency
Appears in Collections:Number 1-3 (2010)

Files in This Item:
File Description SizeFormat 
Brunner.pdf1,06 MBAdobe PDFView/Open

Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/1262

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.