IMPACT Final Conference - NCSR - Wordspotting

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

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

[object Object],[object Object],[object Object],[object Object],[object Object],IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

[object Object],[object Object],[object Object],[object Object],IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

Features based on word profile projections Features based on zones Hybrid features by projections and zones ,[object Object],IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK x y x y y=y t Upper Boundary Lower Boundary x y x y x y

Features by centers of masses ,[object Object],IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

[object Object],(a) Synthetic query word (b) Initial ranking of segmented words. The highlighted words denote correct words selected by the user (c) Ranking after user’s feedback. (a) (b) (c) IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

A. L. Kesidis, E. Galiotou, B. Gatos and I. Pratikakis, “ A word spotting framework for historical machine-printed documents ”, International Journal on Document Analysis and Recognition, DOI: 10.1007/s10032-010-0134-4, pp. 1-14, 2010. A. L. Kesidis, E. Galiotou, B. Gatos, A. Lampropoulos, I. Pratikakis, I. Manolessou and A. Ralli, " Accessing the content of Greek historical documents ", 3rd Workshop on Analytics for Noisy Unstructured Text Data (AND'09), pp. 55-62, Barcelona, Spain, July 2009 IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

[object Object],[object Object],[object Object],IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK Search Word Spotting Query by Example Free Text Query User management + settings Guest √ √ √ Administrator √ √ √ √ √

IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK Query by Keyword Query by Example Free Text OFFLINE PREPARATION – ADMINISTRATIVE TASKS Page segmentation and features extraction Admin Admin Admin Keywords definition Admin Letter templates definition Admin Admin Word Spotting by User ’ s feedback Admin ONLINE USAGE Searching All Users All Users All Users

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

[object Object],[object Object], (a) (b) Average precision vs recall diagrams of word spotting in relation to feature extraction methods for (a) Book A and (b) Book B. IMPACT Tools Developed by NCSR - IMPACT Final Conference 2011, 24-25 October, London, UK

[object Object],[object Object], (a) (b) Average precision vs recall diagrams of word spotting in relation to the user’s feedback involvement for (a) Book A and (b) Book B . 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

IMPACT Final Conference - NCSR - Wordspotting

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