Title
Thinning algorithms based on quadtree and octree representations
Abstract
Thinning is a critical pre-processing step to obtain skeletons for pattern analysis. Quadtree and octree are hierarchical data representations in image processing and computer graphics. In this paper, we present new 2-D area-based and 3-D surface-based thinning algorithms for directly converting quadtree and octree representations to skeletons. The computational complexity of our thinning algorithm for a 2-D or a 3-D image with each length N is respectively O(N^2) or O(N^3), which is more efficient than the existing algorithms of O(N^3) or O(N^4). Furthermore, our thinning algorithms can lessen boundary noise spurs and are suited for parallel implementation.
Year
DOI
Venue
2006
10.1016/j.ins.2005.04.001
Inf. Sci.
Keywords
Field
DocType
hierarchical data representation,existing algorithm,boundary noise,critical pre-processing step,image processing,length n,octree representation,3-d image,computer graphics,computational complexity,quadtree,pattern analysis,computer graphic,hierarchical data,skeleton,octree
Thinning,Computer science,Image processing,Artificial intelligence,Hierarchical database model,Computer graphics,Sparse voxel octree,Discrete mathematics,Computer vision,Algorithm,Computational complexity theory,Octree,Quadtree
Journal
Volume
Issue
ISSN
176
10
0020-0255
Citations 
PageRank 
References 
8
0.51
17
Authors
3
Name
Order
Citations
PageRank
Wai-Tak Wong11148.64
Frank Y. Shih2110389.56
Te-Feng Su3347.55