Title
Orientation space filtering for multiple orientation line segmentation
Abstract
The goal of this paper is to present an appropriate method for the segmentation of lines at intersections (X-junctions) and branches (T-junctions), which can be regarded as local regions where lines occur at multiple orientations. A novel representation called “orientation space” is proposed, which is derived by adding the orientation axis to the abscissa and the ordinate of the image. The orientation space representation is constructed by treating the orientation parameter, to which Gabor filters can be tuned, as a continuous variable. The problem of segmenting lines at multiple orientations is dealt with by thresholding 3D images in the orientation space and then detecting the connected components therein. In this way, X-junctions and T-junctions can be separated effectively. Curve grouping can also be accomplished. The segmentation of mathematically modeled X-, T-, and L-junctions is demonstrated and analyzed. The sensitivity limits of the method are also discussed. Experimental results using both synthesized and real images show the method to be effective for junction segmentation and curve grouping
Year
DOI
Venue
2000
10.1109/34.857000
CVPR
Keywords
Field
DocType
abscissa,image segmentation,filtering
Computer vision,Scale-space segmentation,Pattern recognition,Ordinate,Abscissa,Computer science,Segmentation,Filter (signal processing),Image segmentation,Artificial intelligence,Thresholding,Real image
Journal
Volume
Issue
ISSN
22
5
0162-8828
ISBN
Citations 
PageRank 
0-8186-8497-6
30
2.01
References 
Authors
34
3
Name
Order
Citations
PageRank
Jian Chen1302.01
Y. Sato211213.30
Shinichi Tamura3720517.51