DE Conferentie 2004 Julien Noel

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

3D volume digitization and visualization

DIGISENS S.A.BP 278 Savoie Technolac 73375 Le Bourget-du-Lac Cedex-France

Tel :+33(0)4 79 65 89 16email : info@digisens.frwww.digisens.fr/museo

Applications in Cultural Heritage

Julien NOEL

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

DIGISENS S.A.BP 278 Savoie Technolac 73375 Le Bourget-du-Lac Cedex-France

Tel :+33(0)4 79 65 89 16email : info@digisens.frwww.digisens.fr/museo

DIGISENS

Software development for microCT and CT applications :

- Calibration software

- 3D Reconstruction software

- 3D Volume and surface rendering / analysis software

3D CT and microCT solution provider for :

- industries

- universities

- museum’s laboratories

Winner of the European IST Prize (Information Society

Technology) : www.ist-prize.org

First prize of the 2004 SITEM Innovation Award

(International Show of Museographical and Heritage-

oriented Technology)

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

3D Micro Computed Tomography

Principle

Acquisition

Reconstruction

Visualization

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

3D Micro-CT (Micro Computed Tomography) is a non destructive X-ray technique for internal expertise and volume digitization.

Definition

Advantages :

- Volume digitization (volumical data)

- Complete digitization of entire objet, without shaded zone

- Compatible with all material, even black, brillant and transparent surfaces

- Non deteriorative scanning

- High precision (0,005 mm)

- Fast digitizing (1 hour / object)

- Density segmentation

- Real time visualisation

Drawbacks :

- Size limitation

- No color

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

3-D Computed Tomography

X-Ray technology

Digital detector

microCT : Microfocus X-Ray tube

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Principle

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

360 digital radiographs

Cone-Beam reconstruction

Volume rendering (voxels)

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Radiography X Tomography X

2D slice 3D rendering

Tomography X

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

• Back projection

x = A -1 b

2 4 8

16 36 90

Computed Tomography reconstruction

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

e.g Ramp filter

Filtered Back Projection

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

3D digitization and visualisation using microCT,

for

Museums & Research Centers applications

Some examples of 3D digitization with 3D CT technology and volume rendering software

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Surface scanningStructured light

Laser scanning

Multi-spectral

Drawbacks :

- No internal information

- Slow process

- Low details

- Shaded zones

- Can’t work with black, bright or transparent surface

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Human skulls with 3D CT scanning

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Human skull

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Closed wooden box :

how to discover internal and invisible

objects

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Real Picture 3D rendering

(possibility to apply mapping textures)

Grenoble Museum’s collection

African sculpted box. MHNGr.1979.633

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

African sculpted box. MHNGr.1979.633

The internal view with transparency of the wood reveals shellfishes, plants and grains.

In fact it seems to be a shellfish necklace.

Shellfish virtual extraction by selection of an expected range of density.

3D virtual cross-section to discover the inner objects

Grenoble Museum’s collection

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Talisman : discover all about mysterious objects

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Lyon Museum’s collection

Talisman from Madagascar

External volumical view of an african talisman

Segmentation of high density components : 3D view of the hook and dicovery of a pearl.

2D high resolution CT slices of the pearl and the hook

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Talisman from Madagascar

Lyon Museum’s collection3D surface rendering of the hook and the pearl : detailed views and transparent rendering

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Paleolagus Fossil : how to virtually extract bone from

stone

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Grenoble Museum’s Collection

Paleolagus haydeni, Wyoming (USA), oligocène.

Digitalization and 3D volume rendering of a 35 million years fossil.

The aim of microCT scanning is here to study the skull by virtually removing the stone.

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Paleolagus haydeni, Wyoming (USA), oligocène.

Grenoble Museum’s Collection

Virtual extraction of the bone and real time 3D visualization

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Hornet

Very high resolution digitalization applied to

insects – internal 3D anatomy analysis.

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Rodent : classification of the animal by studying internal teeth

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

3D real time cross sections of the teeth to determine the specie

Grenoble Museum’s collection

After comparison with literature schemes, we can classify the specie : this rodent is an Arvicola terrestris

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Ostracod fossil

Real size 2mm

Rabbit’s bone

Junon – Le Louvre

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Computed Tomography of a small clay pompeian head

CT of a cat shaped coffin

CT and reconstruction made by University of Bologna, Physics department

A cat mummy exposed at the Egyptian section of the City Museum of Bologna

It is possible to see the rest of a cat skeleton without opening the coffin.

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Human Mandible and teeth

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

VisioFURL

3D volumical visualization & media for :

Museum Exhibitions

Pedagogical courses

Libraries & Database

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Integration of 3D models into an interactive interface for presentation (exposition) and pedagogy.

VisioFurl

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Research (internal discoveries, fabrication process analysis, species determination …)

Conservative / restorative applications (classification, volume digitalisation of cultural heritage, conservation, restorative applications …)

Exposition (popularisation, demonstration, 3D libraries and database …)

Museums & Research Centers applications

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

How to implement 3D Computed Tomography digitization in Museums, Research laboratories, Universities, or Industries:

Install complete CT and/or microCT equipment with software for scientific analysis (volume rendering) and real time 3-d visualisation (surface/volume rendering)

Rent a CT/µCT equipment for weeks or months in situ

Upgrade any radiographic equipment for 3D CT capabilities

Arnhem - 02 december 2004

J. NOEL - DIGISENS

3D Digitization and visualisation using microCT scanner

Julien NOEL

DIGISENS S.A.12 allée du Lac de GardeBP 278 - Savoie Technolac73375 Le Bourget du Lac CedexTel : +33 (0)4 79 65 89 16Mobile : 33 (0)6 86 61 55 13e-mail : julien.noel@digisens.fr

www.digitalscanservice.com

DIGISENS S.A.BP 278 Savoie Technolac73375 Le Bourget-du-Lac Cedex-France

Tel :+33(0)4 79 65 89 16email : info@digisens.frwww.digisens.fr/museo

Thanks for your attention