<abstract xmlns="http://www.w3.org/1999/xhtml"><p>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.</p></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.

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

Institute of Applied Computer Science Łódź University of Technology, Stefanowskiego 18/22, 90-924 Łódź, Poland

International Journal of Applied Mathematics and Computer Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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...

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

Published Online: Sep 28, 2012

Page range: 695 - 710

DOI: https://doi.org/10.2478/v10006-012-0052-3

Keywords
subpixel accuracy, edge detection, surface property, approximation, Gaussian function

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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

Published Online: Sep 28, 2012

Page range: 695 - 710

DOI: https://doi.org/10.2478/v10006-012-0052-3

Keywordssubpixel accuracy, edge detection, surface property, approximation, Gaussian function

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
subpixel accuracy, edge detection, surface property, approximation, Gaussian function