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Automatic Ground-Truth Generation for Skew-Tolerance Evaluation of Document Layout Analysis Methods

9 years 2 months ago
Automatic Ground-Truth Generation for Skew-Tolerance Evaluation of Document Layout Analysis Methods
Generation of ground-truths is of great importance for unbiased performance evaluation of document layout analysis methods. This is especially necessary because many methods are claimed to be skew-tolerant. However, experimental evaluation of this fact is often based only on human subjective judgement and restricted to a few experiments. The main obstacle for obtaining human-independent and more automated performance evaluation is that usually there are only ground-truths for upright images, i.e., images with no skew of text lines, because currently available ground-truthing techniques are too time-consuming. In this paper, we propose a new methodology of automatic generation of ground-truths for skewed images by using the ground-truths available for upright images. This methodology is simple and quite fast because processing is done at the level of small square blocks, but not at pixel level.
Oleg Okun, Matti Pietikäinen
Added 31 Jul 2010
Updated 31 Jul 2010
Type Conference
Year 2000
Where ICPR
Authors Oleg Okun, Matti Pietikäinen
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