fre 2645 grec 2003 : 30 july, 2003 adaptable vectorisation system based on strategic knowledge and...
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Grec 2003 : 30 July, 2003
FRE 2645
Adaptable Vectorisation System Adaptable Vectorisation System Based onBased on
Strategic Knowledge Strategic Knowledge and XML Representation Useand XML Representation Use
Delalandre Mathieu¹, Saidali Youssouf¹, Ogier Jean-Marc², Trupin Eric¹
¹ PSI Laboratory, University of Rouen, 76 821 Mont Saint Aignan, France
E-mail: {mathieu.delalandre ; youssouf.saidali ; eric.trupin}@univ-rouen.fr
² L3I Laboratory, University of La Rochelle, 17042 La Rochelle, France
E-mail: [email protected]
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PlanPlan
Introduction Image Processing Library Vectorisation Scenario Construction XML use in System Applications Conclusion
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PlanPlan
Introduction Image Processing Library Vectorisation Scenario Construction XML use in System Applications Conclusion
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IntroductionIntroduction
Vectorisation Purpose:
Applications: Technical document interpretation, Symbol recognition, Chinese handwriting recognition
Vectorisation system: Two parts : image processing part and system knowledge use: descriptive “grammar” and strategic “supervision”
VectorisationGraphic data (vector, circle,
curve)
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PlanPlan
Introduction Image Processing Library Strategic Knowledge Based System XML use in System Applications Conclusion
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Image Processing Library:Image Processing Library:(1) Pre-Processing(1) Pre-Processing
gray level filtering, binarisation, morphology, blob coloring application, noise evaluation
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Image Processing Library:Image Processing Library:(2) Vectorisation Processing(2) Vectorisation Processing
skeletonisation, contouring, run decomposition, region decomposition, direct vectorisation “sparse pixel”, object simplification, polygonisation, circle and curve fitting, pruning, merging, …
3 levels: Image: image image Boundary: image structured data Structured data: structured data structured data
(image ; structured data) image
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PlanPlan
Introduction Image Processing Library Strategic Knowledge Based System XML use in System Applications Conclusion
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Strategic Knowledge Based Strategic Knowledge Based SystemSystem
scenario execution and construction with a graphic user interface
scenarios are saved into a base (re-use) Y. Saidali, S. Adam, J.M. Ogier, E. Trupin, J. Labiche, “Knowledge
Representation and Acquisition for Engineering Document Analysis”, Graphics Recognition (GREC), 2003.
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PlanPlan
Introduction Image Processing Library Strategic Knowledge Based System XML use in System Applications Conclusion
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XML use in SystemXML use in System
Boundary and structured data levels XML XML Use:
Graphic representations: SVG
Adaptable result reconstruction: XSLT and XML-QL
XML process Final XML result
XMLfile
XMLfile
XMLfile
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PlanPlan
Introduction Image Processing Library Strategic Knowledge Based System XML use in System Applications Conclusion
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PlanPlanApplications:Applications:Utility MapUtility Map
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Applications:Applications:GREC2003 Contest (1)GREC2003 Contest (1)
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Applications:Applications:GREC2003 Contest (2)GREC2003 Contest (2)
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Applications:Applications:GREC2003 Contest (3)GREC2003 Contest (3)
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PlanPlan
Introduction Image Processing Library Strategic Knowledge Based System XML use in System Applications Conclusion
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ConclusionConclusion
Resume: System based on two parts:
Image Processing part Pre Processing Vectorisation Processing
System part based on strategic knowledge use XML representation of Data
Interests: Easily Adaptability to new Applications Searching the better recognition strategy
Perspective: Complete recognition tests