Digital Archive of Cultural Heritages - Three Dimensional Modeling of Cultural Heritages and its use for Educational Purposes -

1
Digital Archive of Cultural Heritages- Three
Dimensional Modeling of Cultural Heritages and
its use for Educational Purposes -

• Atsushi Nakazawa, Takeshi Oishi, Jun Takamatsu,
• Kiminori Hasegawa, Katsushi Ikeuchi
• IKEUCHI Laboratory
• Institute of Industrial Science, The University
  of Tokyo
• http//www.cvl.iis.u-tokyo.ac.jp/
• TAKEMURA Laboratory
• Cybermedia Center, Osaka Univesity
• http//www.ime.cmc.osaka-u.ac.jp/

2
Modeling from Reality
3
Digital Archive Project for Cultural Heritages

• Develop methods for acquiring accurate digital
  models of cultural heritage in all the world.
  (University of Tokyo)
• Use for conservation and restoration.
• Create computer graphics and open to the public
  through a virtual museum on the Internet.
• Use the acquired digital data for education.
• (Osaka University)
• History, Art, Literature, Languages.

4
Visual Information of Cultural Properties
1. Geometry (Shape)
2. Photometry (Surface colors, Textures)
4. Time Sequence (Motion)
3. Environment (Lighting Conditions, Shadows)
5
Research Issues

• Geometry (Object Shape)
• Laser Range Sensors for 3D Modeling.
• Alignment and merging method for large amount of
  data.
• Digital restoration of original states.
• Time Sequence (Human Motion)
• Video / Motion Capture
• Motion structure analysis and motion synthesis.
• Presentation by Humanoid Robots.
• Educational Applications
• Distribute digital data for mobile environment.
• Mobile 3D displays.

6
Research Issues

• Geometry (Object Shape)
• Laser Range Sensors for 3D Modeling.
• Alignment and merging method for large amount of
  data.
• Digital restoration of original states.
• Time Sequence (Human Motion)
• Video / Motion Capture
• Motion structure analysis and motion synthesis.
• Presentation by Humanoid Robots.
• Educational Applications
• Distribute digital data for mobile environment.
• Mobile 3D displays.
• Digital Library
• Three Dimensional Model of Cultural Heritages all
  the World.

7
Laser Range Scanners
Scanner
Object
time ?t
distance d ?t c/2 c light speed
8
Scanned Range Images
Several range images acquired from different
viewpoints.
9
Registration of Several Range Images
10
Merge the Aligned Range Images

• Voxel based merging method by using PC Cluster

11
Complete 3D Digital Model of Large Scale
Cultural Heritages
12
Ubiquitous Learning Projecthttp//www.ulan.jp/
New Project by 3 Universities Nagoya
University, Information Tech. Center Kyoto
University, Academic Center for
Computing and Media Studies. Osaka
University, Cybermedia Center
Display HMD
VR Model
Lecture
Direct Communication
Course Management System
3D Model Data Accounting Lecture Info..
Mobile Terminals
13
Conclusion

• The digital archiving technologies for cultural
  heritages
• 3D Geometry Modeling
• 3D Restoration Technique
• Applications for Educational Purposes
• Please visit the website
• Katsushi Ikeuchi Lab.
• http//www.cvl.iis.u-tokyo.ac.jp/
• ULAN (Ubiquitous Learning) Project
• http//www.ulan.jp/