Title :
Fast Medial Axis Transform for Planar Domains With General Boundaries
Author :
Pinto, Filipe ; Freitas, C.
Author_Institution :
Inst. de Inf., Univ. Fed. do Rio Grande do Sul, Rio Grande, Brazil
Abstract :
The medial axis, also known as symmetry axis, is a special type of skeleton that has a number of interesting properties. It is a powerful tool in applications involving pattern recognition, image analysis, path planning and mesh generation, to name a few. Since the proposal and definition of the medial axis, in 1967, much effort has been done to develop fast and accurate methods for calculating the medial axis transform. Fast and exact solutions were found for planar domains enclosed by simple polygons, however, domains with curved boundaries are still a terrain for further research. This paper presents a new algorithm for approximating the medial axis of general planar domains that is much faster than previous approaches. The algorithm is based on a new but very simple form of representing the medial axis.
Keywords :
mesh generation; path planning; shape recognition; fast medial axis transform; general boundaries; image analysis; mesh generation; path planning; pattern recognition; planar domains; Computer graphics; Fires; Image analysis; Image processing; Image segmentation; Mesh generation; Path planning; Pattern recognition; Proposals; Shape; curved boundaries; medial axis; shape description;
Conference_Titel :
Computer Graphics and Image Processing (SIBGRAPI), 2009 XXII Brazilian Symposium on
Conference_Location :
Rio de Janiero
Print_ISBN :
978-1-4244-4978-1
Electronic_ISBN :
1550-1834
DOI :
10.1109/SIBGRAPI.2009.21