The Extraction of Circles from Arcs Represented by Extended Digital Lines

Euijin KIM, Miki HASEYAMA, Hideo KITAJIMA

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Summary :

This paper presents a new fast and robust circle extraction method that is capable of extracting circles from images with complicated backgrounds. It is not based on the Hough transform (HT) that requires a time-consuming voting process. The proposed method uses a least-squares circle fitting algorithm for extracting circles. The arcs are fitted by extended digital lines that are extracted by a fast line extraction method. The proposed method calculates accurate circle parameters using the fitted arcs instead of evidence histograms in the parameter space. Tests performed on various real-world images show that the proposed method quickly and accurately extracts circles from complicated and heavily corrupted images.

Publication
IEICE TRANSACTIONS on Information Vol.E88-D No.2 pp.252-267
Publication Date
2005/02/01
Publicized
Online ISSN
DOI
10.1093/ietisy/e88-d.2.252
Type of Manuscript
PAPER
Category
Image Processing and Video Processing

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