Database Management and Innovative Applications for Imaging Museum Laboratories Ruven Pillay, C2RMF

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Database Management and Innovative Applications
for Imaging Museum LaboratoriesRuven Pillay,
C2RMF
Sauveur Prague, 31 May 2 June 2006
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C2RMF

• Research and Restoration Centre
• Created in 1931
• Mission to scientifically study, document and
  preserve works of art from all French museums

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EU Projects

• 11 projects within the ESPRIT, IMPACT, RAPHAEL,
  IST and e-CULTURE frameworks since 1989

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Project Themes

• Advanced Digital Imaging
• Image Analysis
• 3D Imaging/Modeling
• Technical Vocabularies and Ontologies
• Database Management

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Digital Imaging

• Large historical scientific photo-archive dating
  back to 1931
• NARCISSE project in 1989 scanning of
  photographic archives at 6,000 x 8,000 pixels

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Multispectral Imaging

• VASARI project
• 7 filter camera (400-700nm)
• 10,000 x 10,000 pixel resolution
• High colour accuracy of 1dE in CIELab colour
  space
• Custom image processing software, VIPS, developed
  to handle large images resused in subsequant
  projects

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Multispectral Imaging

• CRISATEL project
• Portable camera
• Higher resolution 20,000 x 12,000 pixels
• Sweeping light system minimizes damage to painting

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Multispectral Imaging

• 13 interferential dichroic filters 400nm - 1000nm

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Spectral Reconstruction

• Pigment Identification
• Illuminant simulation

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3D Imaging

• ACOHIR project
• Panoramic view
• Colour calibrated

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Panoramic Sequences

• Visible panorama
• X-ray panorama

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3D Modeling

• SCULPEUR project
• Hardware from ACOHIR
• Volumetric mapping via silhouette extrusion

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High Definition Models
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3D Scanning of Paintings

• Laser-based

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3D Scanning of Paintings
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Visualization

• VISEUM project
• Exchange of images between institutions
• Tiled Pyramidal TIFF
• Client only requests viewable area
• Tiles dynamically JPEG compressed and then sent
  to viewer
• Fast viewing with low memory requirements

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How it works
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How it works
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Content Based Retreival

• ARTISTE project
• Image recognition
• Classification by colour coherence, spatial
  distribution etc
• Possible Uses
• Correlate artists to colours used or shapes
• Analysis of artist styles
• Technique analysis eg knife, brush
• Inscription characterisation eg signatures,
  motifs
• Ageing features eg lacuna, cracks, repaints
• Extended to 3D models in SCULPTEUR project

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Ontologies Semantic Web

• NARCISSE first database
• CRISTAL technical vocabulary definitions and
  translations into 10 languages
• SCULPTEUR CIDOC mapping

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Project Fusion

• Bring project results together
• EROS Multilingual and semantically mapped
  Database
• Remote viewing of
• multispectral images
• 3D panoramas
• 3D models
• Search by image similarity
• Database itself becomes a scientific tool for
  original research

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EROS Database
20,000 paintings
40,000 objects
10,000 reports, articles etc
15,000 chemical analyses
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Dissemination

• Open Source
• software licenced under GPL where possible
• Allows the work to live on after end of project
• VIPS Image processing
• http//vips.sf.net
• IIPImage Remote visualization
• http//iipimage.sf.net

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Thank You