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A survey of subpixel edge detection methods for images of heat-emitting metal specimens Cover

A survey of subpixel edge detection methods for images of heat-emitting metal specimens

Open Access
|Sep 2012

Abstract

In this paper the problem of accurate edge detection in images of heat-emitting specimens of metals is discussed. The images are provided by the computerized system for high temperature measurements of surface properties of metals and alloys. Subpixel edge detection is applied in the system considered in order to improve the accuracy of surface tension determination. A reconstructive method for subpixel edge detection is introduced. The method uses a Gaussian function in order to reconstruct the gradient function in the neighborhood of a coarse edge and to determine its subpixel position. Results of applying the proposed method in the measurement system considered are presented and compared with those obtained using different methods for subpixel edge detection.

DOI: https://doi.org/10.2478/v10006-012-0052-3 | Journal eISSN: 2083-8492 | Journal ISSN: 1641-876X
Language: English
Page range: 695 - 710
Published on: Sep 28, 2012
Published by: University of Zielona Góra
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2012 Anna Fabijańska, published by University of Zielona Góra
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.