3d objects in wat makutkasattriyaram's e-museum: progress, experiences, and applied...

3D Objectsin Wat Makutkasattriyaram's e-Museum:

Progress, Experiences,and Applied Technologies

Rachabodin SuwannakanthiPiyawut SrichaikulChularat TanprasertComputing Research and Development Program,National Electronics and Computer Technology Center (NECTEC),National Science and Technology Development Agency (NSTDA),Ministry of Science and Technology, Thailand.

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Outline

• Wat Makutkasattriyaram• Background of the e-museum project• Applied technologies for 3D creation• Metadata and Web-based application• Progress of the project• Summary and future work

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Outline

• Wat Makutkasattriyaram• Background of the e-museum project• Applied technologies for 3D creation• Metadata and Web-based application• Progress of the project• Summary and future work

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What is Wat Makutkasattriyaram?

Wat Makut is one of the royal temple in Bangkok,Thailand, completed in1868.

photo from http://www.dhammathai.org/

[wat-ma-kut-ka-sat-tri-ya-ram] temple

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Why we created an e-museumfor Wat Makut?

• Numerous murals andcrafts related to the royalfamily and some historicalevents.

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Outline

• Wat Makutkasattriyaram• Background of the e-museum project• Applied technologies for 3D creation• Metadata and Web-based application• Progress of the project• Summary and future work

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Background of the e-museum project

Began in July 2005to celebrate the 50th

birthday of Her RoyalHighness PrincessMaha Chakri Sirindhorn

Her Royal HighnessPrincess Maha Chakri Sirindhorn

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Project Goals

• To preserve, manage, and publicize knowledge of Thaicultural heritage

• To create an online museum in parallel with a real museum

• To gain technical knowledgerelated to 3D object creationand visualization via the web

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e-Museum development componentse-Museum development components

ObjectDigitization

Web-based application construction

Metadata and Database Design

2D objects(digital still photos)

3D objects

Web databaseApplication (LAMP)Virtual museum

Wat Makute-Museum

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Outline

• Wat Makutkasattriyaram• Background of the e-museum project• Applied technologies for 3D creation• Metadata and Web-based application• Progress of the project• Summary and future work

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Applied technologies for 3D creation

Technologies for creating 3D objects in thee-museum are:

3D Laser Scanning(using 3D laser scanner)

Photographic VR(using digital camera)

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Equipments• 3D laser scanning

– 3D Laser scanner– 3D Modeling software– Lighting set– Turntable

• Photographic VR– Digital camera– VR software– Lighting set– Turntable

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3D laser scanning workflow1.

Digitizationand Registration

RealObject

2.Noise Filtering

3.Layers Mergingand Hole Filling

4.Optimization

(Size reduction)

5.Texture Mapping

and Object Exporting3D

Object

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1. Digitization and Registration

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2. Noise Filtering

noise

noise

noise

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3. Layers Merging and Hole Filling

Mergelayers

Fillholes

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4. Optimization (Size reduction)

reduce sizeby reducenumber

of polygons

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5. Texture Mapping andObject Exporting

+Textures have been taken from

a digital camera

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1. Digitization

2. Importing

3. Merging

4. Exporting

Photographic VR workflow

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Take a still shot360 degrees(16 frames)

1. Digitization

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Import images to computer

2. Importing

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Merge all images

3. Merging

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Export to web

4. Exporting

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3D laser scanning vs Photographic VR

horizontal 360 degrees

vertical and horizontal360 degrees

Object rotation

GoodVery goodImage quality

not preservedpreservedPreservation of the original object dimension

1 day/object3 months/objectDevelopment time

About 1 MBAbout 2 MBFile size (for internet delivery)

2 persons4 personsNumber of operation staffs

about 2,000 USDabout 40,000 USDCost of equipments and software

PhotographicVR

3D laserscanning

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Outline

• Wat Makutkasattriyaram• Background of the e-museum project• Applied technologies for 3D creation• Metadata and Web-based application• Progress of the project• Summary and future work

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Metadata and Database Design

• Database structure has been designed based on metadata set for antique and art objects from theFine Arts department, Ministry of Culture, Thailand

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Metadata schemedesigned by the Fine Arts department

1. Accession no.2. Object name3. Previous no4. Art style5. Description6. Condition7. History8. Category9. Sub-category

8. Dimension9. Material10. Periods11. Acquisitions12. Location13. Film no. / CD no.14. Photo no.15. File16. Remarks

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Web-based application construction

• Focused on open source technology–Linux – Operating system–Apache – Web server software–MySQL - DBMS–PHP – programming language

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Outline

• Wat Makutkasattriyaram• Background of the e-museum project• Applied technologies for 3D creation• Metadata and Web-based application• Progress of the project• Summary and future work

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Progress of the project

• Completed 2 objects by using 3D laser scanning technique

• Completed 35 objects by using photographic VR technique

• Finished design and development of the web-based system including data entry of the above objects

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Outline

• About Wat Makutkasattriyaram• Background of the e-museum project• Applied technologies for 3D creation• Metadata and Web-based application• Current progress• Summary and future work

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Summary

• 2 techniques for creating 3D objects– 3D laser scanning– Photographic VR

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Future work

• Reducing development time for 3D laser scanning technique

• Adding 360 degrees vertical rotation feature for Photographic VR technique

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Thank you for your attentionComments and Questions are welcome.