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Presented by Mathieu Delalandre CESR Meeting CESR, Tours, France

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Presentation on theme: "Presented by Mathieu Delalandre CESR Meeting CESR, Tours, France"— Presentation transcript:

1 Presented by Mathieu Delalandre CESR Meeting CESR, Tours, France
Work Group CALYPOD graphiCs imAge anaLYsis from Printed Old Document Presented by Mathieu Delalandre CESR Meeting CESR, Tours, France Tuesday, 13th November 2007

2 General Presentation (1/3)
Research Work Group Group of researchers, coming from different laboratories, teams and projects, working toward a common specific research topic. Topic of research Automatic processing of the graphical parts in old printed books (segmentation, pre-processing, matching, OCR, retrieval, …) Objectives: Information Management: to collect, centralize and broadcast information Human Network: to put in relation people and to strengthen collaborations Funding Support: to support the funding initiatives Technological Transfers: to help in the development of “real-life” applications for the end-users ornamental letter headline figure 2

3 General Presentation (2/3)
Busson Sébastien Baudrier Etienne Nicolier Frédéric Landré Jérôme Delalandre Mathieu Karatzas Dimosthenis Lladós Josep Nicolas Stéphane Ramos Oriol Petitjean Caroline Journet Nicholas Salmon Jean-Pierre Coustaty Mickael Brouard Thierry Ogier Jean-Marc Ramel Jean-Yves Sidere Nicolas 3

4 General Presentation (3/3)
Calendar Online 35 documents 20 weblinks 4 test databases 3 softwares 1 wiki November December January February March April May June July August September October 2006 2007 11th June, 1st Meeting (Paris) Starting date of Calypod Group GDR-ISIS “Jeune Chercheur” Application “SILCIL” 5th July, opening of 13th July, 2sd Meeting (La Rochelle) 13th November, 4th Meeting (Tours) Break period ….. 6th November, 3rd Meeting (Paris) August 144 Visits September 196 Visits October 334 Visits 4

5 Research Topics (1/7) Digitalization checking Image Enhancement
Wood Plug Tracking User Driven Visualization Letter Recognition Other Indexing Criteria 5

6 Research Topics (2/7) Digitalization Checking
Several image providers Several digitalization tools Long time process Human supervised Complex plate-form 6

7 Research Topics (3/7) Image Enhancement
Offset Skewing Translation Rotation & Scaling Denoising Degradation 7

8 Research Topics (4/7) Wood-Plug Tracking
Vascosan 1555 Marnef 1576 Printing house plug exchange copy A tool to help in the dating of old books Copyright raises real-time retrieval problems Need a pixel precision level that is a high complexity problem DB query 8

9 Research Topics (5/7) User-Driven Visualization
9

10 Research Topics (6/7) Letter Recognition
The letter type is a precious information to index the images Problematics Color (black, white) Font and Size (small, big, specific, …) Background (almost empty, riched graphics) To define an approach which: deals with the color detection and the letter segentation works without any previous knowledge (ie. one image one letter model) 10

11 Research Topics (7/7) Other Indexing Criteria
1 [99-107] 2 [ ] 125 139 102 99 107 141 133 2 1 Pattern rank Frequency 11

12 Thanks 12


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