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Reseach Article

Vanishing Point Detection by Clustering on the Normalized Unit Sphere

by Qiang He, Chee-hung Henry Chu
International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Volume 65 - Number 10
Year of Publication: 2013
Authors: Qiang He, Chee-hung Henry Chu
10.5120/10961-5927

Qiang He, Chee-hung Henry Chu . Vanishing Point Detection by Clustering on the Normalized Unit Sphere. International Journal of Computer Applications. 65, 10 ( March 2013), 22-28. DOI=10.5120/10961-5927

@article{ 10.5120/10961-5927,
author = { Qiang He, Chee-hung Henry Chu },
title = { Vanishing Point Detection by Clustering on the Normalized Unit Sphere },
journal = { International Journal of Computer Applications },
issue_date = { March 2013 },
volume = { 65 },
number = { 10 },
month = { March },
year = { 2013 },
issn = { 0975-8887 },
pages = { 22-28 },
numpages = {9},
url = { https://ijcaonline.org/archives/volume65/number10/10961-5927/ },
doi = { 10.5120/10961-5927 },
publisher = {Foundation of Computer Science (FCS), NY, USA},
address = {New York, USA}
}
%0 Journal Article
%1 2024-02-06T21:18:29.680721+05:30
%A Qiang He
%A Chee-hung Henry Chu
%T Vanishing Point Detection by Clustering on the Normalized Unit Sphere
%J International Journal of Computer Applications
%@ 0975-8887
%V 65
%N 10
%P 22-28
%D 2013
%I Foundation of Computer Science (FCS), NY, USA
Abstract

In this paper, we give a new vanishing point detection algorithm, called the normalized unit sphere. By normalizing homogeneous coordinates in the original image space, we transform image points onto a normalized unit sphere. Further, we transform straight lines in image space into circles on normalized unit sphere. As a result, the vanishing point detection is implemented by searching the intersections of circles on the normalized unit sphere. This algorithm not only bounds the search space but treats the finite vanishing points and the vanishing points at infinity with the same way. The experimental results on synthetic and real data show good performance of this algorithm.

References
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Index Terms

Computer Science
Information Sciences

Keywords

Vanishing Point Detection Normalized Unit Sphere Canny Edge Detector Least-Square Method K-means Method