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Automated Region of Interest Retrieval of Metallographic Images for Quality Classification in Industry
Journal Title Advances in Electrical and Electronic Engineering
Journal Abbreviation AEEE
Publisher Group Technical University of Ostrava (VSB)
Website http://advances.utc.sk/index.php/AEEE
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Title Automated Region of Interest Retrieval of Metallographic Images for Quality Classification in Industry
Authors Kotas, Petr; Praks, Pavel; Valek, Ladislav; Zejkovic, Vesna; Vondrak, Vit
Abstract The aim of the research is development and testing of new methods to classify the quality of metallographic samples of steels with high added value (for example grades X70 according API). In this paper, we address the development of methods to classify the quality of slab samples images with the main emphasis on the quality of the image center called as segregation area. For this reason, we introduce an alternative method for automated retrieval of region of interest. In the first step, the metallographic image is segmented using both spectral method and thresholding. Then, the extracted macrostructure of the metallographic image is automatically analyzed by statistical methods. Finally, automatically extracted region of interests are compared with results of human experts.  Practical experience with retrieval of non-homogeneous noised digital images in industrial environment is discussed as well.
Publisher Faculty of Electrical Engineering and Computer Science
Date 2012-03-31
Source Advances in Electrical and Electronic Engineering Vol 10, No 1 (2012): March
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