IMPACT Final Conference - NCSR - Page curl correction

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IMPACT Final conference - NCSR - Page curl correction

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  • IMPACT Final Conference - NCSR - Page curl correction

    1. 1. 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
    2. 2. Page_Curl_Correction _v4 [0|1] [infile] [outfile] parameter [0|1]: 0 -> coarse & fine correction, 1 -> only coarse correction parameter [infile]: Input filename (b/w or gray scale image) parameters [outfile] : Output filename (b/w or gray scale image) + web service implementation IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK
    3. 3. N. Stamatopoulos, B. Gatos, I. Pratikakis, S.J. Perantonis, “ Goal-oriented Rectification of Camera-Based Document Images ”, IEEE Transactions on Image Processing , DOI: 10.1109/TIP.2010.2080280, 2010 IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK <ul><li>A computationally low cost transformation which addresses the projection of a curved surface to a 2D rectangular area </li></ul><ul><li>Fine correction based on text line & word segmentation </li></ul>
    4. 4. IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK
    5. 5. IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK
    6. 6. IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK
    7. 7. Only Coarse Correction Coarse + Fine Correction Av=4.2 Av=4.5 <ul><li>Lot of page curl added to the result </li></ul><ul><li>Some curl added to the result </li></ul><ul><li>Only part of the page curl has been corrected </li></ul><ul><li>Most of the page curl has been corrected </li></ul><ul><li>Page Curl has been corrected </li></ul>IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK 14706 images to test Page Curl Correction
    8. 8. Only Coarse Correction Coarse + Fine Correction Av=3.9 <ul><li>Lot of page curl added to the result </li></ul><ul><li>Some curl added to the result </li></ul><ul><li>Only part of the page curl has been corrected </li></ul><ul><li>Most of the page curl has been corrected </li></ul><ul><li>Page Curl has been corrected </li></ul>Av=3.7 IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK 3009x2 = 6018 images to test page split
    9. 9. IMPACT Page Curl Correction v.4 87.78% (81.98% only coarse correction) BookRestorer 80.87% N. Stamatopoulos, B. Gatos and I. Pratikakis, &quot; A Methodology for Document Image Dewarping Techniques Performance Evaluation &quot;, 10th International Conference on Document Analysis and Recognition (ICDAR'09) , pp. 956-960, Barcelona, Spain, July 2009. IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

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