کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4969328 | 1449931 | 2017 | 39 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Robust corner detection using the eigenvector-based angle estimator
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی کامپیوتر
چشم انداز کامپیوتر و تشخیص الگو
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Angle is an intuitive and important property for representing corners. This fact motivates us to present a novel angle-based corner detector, named Eigenvector-based Angle Estimator (EAE). EAE estimates the angle of each point in a contour via computing the eigenvectors of the covariance matrix of boundary points over a small Region of Support (RoS). Since EAE is sensitive to uniform scaling due to the fixed RoS, an enhanced version of EAE named Weighted EAE (WEAE) is proposed. WEAE achieves robustness to uniform scaling by weighting the boundary points using their distances from the target point. Experimental results demonstrate that EAE and WEAE can efficiently achieve promising performance in comparisons with several recent state-of-the-art approaches under two commonly used evaluation metrics, namely, Average Repeatability (AR) and Localization Error (LE).
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Visual Communication and Image Representation - Volume 45, May 2017, Pages 181-193
Journal: Journal of Visual Communication and Image Representation - Volume 45, May 2017, Pages 181-193
نویسندگان
Shizheng Zhang, Dan Yang, Sheng Huang, Xiaohong Zhang, Liyun Tu, Zemin Ren,