Atsushi Nakazawa, Takeshi Oishi, Jun Takamatsu, Kiminori Hasegawa, Katsushi Ikeuchi

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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/

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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 - PowerPoint PPT Presentation

Transcript of Atsushi Nakazawa, Takeshi Oishi, Jun Takamatsu, Kiminori Hasegawa, Katsushi Ikeuchi

Page 1: Atsushi Nakazawa, Takeshi Oishi, Jun Takamatsu,  Kiminori Hasegawa, Katsushi Ikeuchi

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 LaboratoryInstitute of Industrial Science, The University of Tokyo

http://www.cvl.iis.u-tokyo.ac.jp/

TAKEMURA LaboratoryCybermedia Center, Osaka Univesityhttp://www.ime.cmc.osaka-u.ac.jp/

Page 2: Atsushi Nakazawa, Takeshi Oishi, Jun Takamatsu,  Kiminori Hasegawa, Katsushi Ikeuchi

Modeling from Reality

Real object

VR model

digital sensors

Algorithm

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• 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.

Digital Archive Project for Cultural Heritages

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Visual Information of Cultural Properties

1. Geometry (Shape) 2. Photometry (Surface colors, Textures)

4. Time Sequence (Motion)3. Environment (Lighting Conditions, Shadows)

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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.

Page 6: Atsushi Nakazawa, Takeshi Oishi, Jun Takamatsu,  Kiminori Hasegawa, Katsushi Ikeuchi

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.

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Laser Range Scanners

time ⊿t

Scanner

distance d = ⊿t ・ c/2 c : light speed

Object

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Scanned Range Images

Several range images acquired from different viewpoints.

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Registration of Several Range Images

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Merge the Aligned Range Images• Voxel based merging method by using PC Cluster

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Complete 3D Digital Model of Large Scale Cultural Heritages

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Ubiquitous Learning Projecthttp://www.ulan.jp/

Course Management SystemCourse Management System

Lecture

3D Model DataAccountingLecture Info..

VR Model

New Project by 3 Universities: Nagoya University, Information Tech. Center Kyoto University, Academic Center for Computing and Media Studies. Osaka University, Cybermedia Center

Direct Communication

DisplayHMD

Mobile Terminals

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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/