Corner detection using Chebyshev fitting-based continuous curvature estimation

Extensive contour-based corner detection methods have been proposed to estimate the curvature of a planar curve and most of them estimated it in digital spaces. However, the curvature should be intuitively continuous. Presented is a novel approach which addresses the corner detection issue by employ...

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Bibliographic Details
Published in:Electronics letters 2015-11, Vol.51 (24), p.1988-1990
Main Authors: Zhang, Shizheng, Yang, Dan, Huang, Sheng, Tu, Liyun, Zhang, Xiaohong
Format: Article
Language:English
Subjects:
Chebyshev approximation
Chebyshev polynomial fitting
continuous curvature estimation
contour‐based corner detection
Corner detection
Corners
Curvature
curve fitting
digital space
discrete curvature estimation
edge detection
Estimates
Image and vision processing and display technology
Mathematical analysis
planar curve
polynomial approximation
Polynomials
Shape
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Summary:Extensive contour-based corner detection methods have been proposed to estimate the curvature of a planar curve and most of them estimated it in digital spaces. However, the curvature should be intuitively continuous. Presented is a novel approach which addresses the corner detection issue by employing the Chebyshev polynomial fitting to estimate the curvature in a continuous way. Experimental results demonstrate that the approach achiever a promising performance in comparison with three representative corner detectors based on discrete curvature estimation and two other state-of-the-art methods.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2015.2491