Adaptable Vectorisation System Based on Strategic Knowledge and XML Representation Use

1
Adaptable Vectorisation System Based onStrategic
Knowledge and 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_at_univ-rouen.fr
• ² L3I Laboratory, University of La Rochelle,
  17042 La Rochelle, France
• E-mail jmogier_at_univ-lr.fr

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Plan

• Introduction
• Image Processing Library
• Vectorisation Scenario Construction
• XML use in System
• Applications
• Conclusion

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Plan

• Introduction
• Image Processing Library
• Vectorisation Scenario Construction
• XML use in System
• Applications
• Conclusion

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Introduction

• 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

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Plan

• Introduction
• Image Processing Library
• Strategic Knowledge Based System
• XML use in System
• Applications
• Conclusion

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Image Processing Library(1) Pre-Processing

• gray level filtering, binarisation, morphology,
  blob coloring application, noise evaluation

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Image Processing Library(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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Plan

• Introduction
• Image Processing Library
• Strategic Knowledge Based System
• XML use in System
• Applications
• Conclusion

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Strategic Knowledge Based System

• 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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Plan

• Introduction
• Image Processing Library
• Strategic Knowledge Based System
• XML use in System
• Applications
• Conclusion

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XML use in System

• Boundary and structured data levels ? XML
• XML Use
• Graphic representations SVG
• Adaptable result reconstruction XSLT and XML-QL

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Plan

• Introduction
• Image Processing Library
• Strategic Knowledge Based System
• XML use in System
• Applications
• Conclusion

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ApplicationsUtility Map
Plan
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ApplicationsGREC2003 Contest (1)
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ApplicationsGREC2003 Contest (2)
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ApplicationsGREC2003 Contest (3)
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Plan

• Introduction
• Image Processing Library
• Strategic Knowledge Based System
• XML use in System
• Applications
• Conclusion

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Conclusion

• 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