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Basic Test Framework for the Evaluation of Text Line Segmentation and Text Parameter Extraction
Technical Faculty Bor, V.J. 12, University of Belgrade, 19210 Bor, Serbia
Department of Informatics, Zeleni Bulevar 35, Mining and Metallurgy Institute, 19210 Bor, Serbia
Technical College Niš, Aleksandra Medvedeva 20, 18000 Niš, Serbia
* Author to whom correspondence should be addressed.
Received: 9 April 2010; in revised form: 13 May 2010 / Accepted: 14 May 2010 / Published: 25 May 2010
Abstract: Text line segmentation is an essential stage in off-line optical character recognition (OCR) systems. It is a key because inaccurately segmented text lines will lead to OCR failure. Text line segmentation of handwritten documents is a complex and diverse problem, complicated by the nature of handwriting. Hence, text line segmentation is a leading challenge in handwritten document image processing. Due to inconsistencies in measurement and evaluation of text segmentation algorithm quality, some basic set of measurement methods is required. Currently, there is no commonly accepted one and all algorithm evaluation is custom oriented. In this paper, a basic test framework for the evaluation of text feature extraction algorithms is proposed. This test framework consists of a few experiments primarily linked to text line segmentation, skew rate and reference text line evaluation. Although they are mutually independent, the results obtained are strongly cross linked. In the end, its suitability for different types of letters and languages as well as its adaptability are its main advantages. Thus, the paper presents an efficient evaluation method for text analysis algorithms.
Keywords: OCR; document engineering; text line segmentation; text features; testing
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Brodić, D.; Milivojević, D.R.; Milivojević, Z. Basic Test Framework for the Evaluation of Text Line Segmentation and Text Parameter Extraction. Sensors 2010, 10, 5263-5279.
Brodić D, Milivojević DR, Milivojević Z. Basic Test Framework for the Evaluation of Text Line Segmentation and Text Parameter Extraction. Sensors. 2010; 10(5):5263-5279.
Brodić, Darko; Milivojević, Dragan R.; Milivojević, Zoran. 2010. "Basic Test Framework for the Evaluation of Text Line Segmentation and Text Parameter Extraction." Sensors 10, no. 5: 5263-5279.