IMPACT Final Conference - NCSR - Character segmentation

IMPACT Tools Developed by NCSR IMPACT Final Conference 2011 24-25 October 2011, London, UK B. Gatos Computational Intelligence Laboratory Institute of Informatics and Telecommunications National Center for Scientific Research ( NCSR ) "Demokritos" GR-153 10 Agia Paraskevi, Athens, Greece

0.21 0.91 Character_Segmentation_v3 [WordImageFilename] [XMLOutputFilename] parameter [WordImageFilename]: An image containing a word parameter [XMLOutputFilename] : several character segmentation variations encoded following the XML schema of IBM used in TR3 (Adaptive OCR) IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

Merged characters Broken characters Overlapped characters Noise IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

Segmentation variations encoded following the XML schema used in TR3 N. Nikolaou, M. Makridis, B. Gatos, N. Stamatopoulos, N. Papamarkos, " Segmentation of historical machine-printed documents using Adaptive Run Length Smoothing and skeleton segmentation paths ", Image and Vision Computing, Vol. 28 , Issue 4, pp. 590-604, 2010.
Calculation of the inner/outer skeleton
Classification of the skeleton parts
Detection of feature points
Construct all possible segmentation paths that result to characters with width in the limit of [MinC*LettH, MaxC*LettH]. For the MinC and MaxC parameters the following pairs are used: (0.3, 0.4). (0.4, 0.5), (0.5, 0.6), (0.6, 0.7), (0.7, 0.8), (0.8, 0.9). As a result we have several segmentation variations with and without applying noise removal. Confidence is based on the difference between Average and Dominant Ratio of Height to Width.

0.61 0.79 0.85 0.98 0.94 IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

0.83 0.63 0.73 0.89 0.90 IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

0.61 0.79 0.94 Evaluation of the result with the highest confidence IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

0.61 0.79 0.94 Evaluation of the best possible result IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

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IMPACT Final Conference - NCSR - Character segmentation

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