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GOM – Optical Measuring Techniques Product Overview

Optical Measuring Techniques Applications in Cultural Heritage TOPOMATIKA INFuture2007: “Digital Information and Heritage” Zagreb, 7-9 November 2007. GOM – Optical Measuring Techniques Product Overview. ATOS 3D Digitizer. TRITOP Photogrammetry. PONTOS Dynamic Photogrammetry.

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GOM – Optical Measuring Techniques Product Overview

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  1. Optical Measuring Techniques Applications in Cultural HeritageTOPOMATIKAINFuture2007: “Digital Information and Heritage”Zagreb, 7-9 November 2007

  2. GOM – Optical Measuring Techniques Product Overview ATOS 3D Digitizer TRITOP Photogrammetry PONTOSDynamic Photogrammetry ESPI Speckle Interferometer ARGUS Forming Analysis ARAMIS Deformation Analysis

  3. GOM – Optical Measuring Techniques Product Overview ATOS 3D Digitizer TRITOP Photogrammetry PONTOSDynamic Photogrammetry ESPI Speckle Interferometer ARGUS Forming Analysis ARAMIS Deformation Analysis

  4. ATOS3D Digitizer – Scopes of Applications Industrial Applications • Inspection • Reverse Engineering • Rapid Prototyping Medical Applications • Orthetics • Forensics • Medical Computer Graphics • 3D Character Animation • Internet 3D Product Presentations • Virtual Reality Cultural Applications • Documentation / Research • 3D Copying / Replications • Monitoring

  5. ATOS3D Digitizer Features • Mobile 3D Scanner • Changeable measuring volumes • Robust, compact sensor design • Very fast measuring sequence: under 1 second • Simple operation • Can be used as stand alone digitizer or as ATOS I XL (with TRITOP) • Can be integrated easily in complete measuring set up, on robots or in combination with rotation tables Stereo Camera Technique • Photogrammetric calibration • Self monitoring • Online checks • High detail resolution

  6. ATOS Workflow • Freehanded or automated sensor positioning (robot) • Projection of fringe pattern • Measurement patches consist of up to 4 million 3D points • Automatically transformation of all measurements/different views into object coordinate system

  7. ATOS Workflow • Results • Triangular mesh • Point cloud • Sections

  8. ATOS 3D Digitizer • White-Light-Measuring-System • Non-Invasive (No Laserlight) • Non-Contact

  9. ATOS 3D Digitizer • Variable Measuring Volumes • Object sizes from coin to monument • Adjustable resolution

  10. ATOS 3D Digitizer • Stereo-View-System • Self-Controlling-Calibration • Variable Triangulation Angels (for capturing undercuts) • Fewer measurements necessary

  11. ATOS 3D Digitizer • Non-Cooperative Objects Surface • Different exposure times allow to capture data on dark and bright surfaces • For glossy surfaces, data can be calculated based on the images from one camera only

  12. ATOS 3D Digitizer

  13. ATOS 3D Digitizer • Data handling • Using 64-Bit Technology in combination with Linux-operating-system allows fast handling and computation of large volume data sets

  14. ATOS 3D Digitizer • Mobility • Laptop and TRITOP • Small suitcase for transporting

  15. Documentation of archaeological objectsApoxyomenos • documentation and shape analysis during restoration process after excavation in 1999 near Losinj, a Croatian island • Ancient greece bronze sculpture of Apoxyomenos, 4th century BC • Topomatika d.o.o. used TRITOP and ATOS-System in cooperation with the Croatian Conservation Institute

  16. Documentation of architectural monuments St Jacob’s Cathedral in Šibenik • The Cathedral of St. Jakov (St. Jacob) in Šibenik is a triple nave basilica with three apses and a cupola (height of interior is 32 m). It was consecrated in 1555 • enlisted in UNESCO's world heritage in 2001 • Art-historical and geometrical documentation and shape analysis of sculptures and façade details • Ministry of Culture RH and regional office for conservation in Šibenik

  17. Documentation of architectural monumentsCharlesbridge • Capturing of 3D-Shape of the statues of the Charlesbridge in Prague with TRITOP - and ATOS-Systems by the State Institute for the Care of Culture in cooperation with MCAE Systems s.r.o. in 1999 • Documentation and Monitoring of the 8m high stone statues deriving from 18th century • App. 350 single scans were taken for the Statue of St. Vojtech

  18. Documentation of architectural monumentsMaximilian 1´s Tomb • Art-historical and geometrical documentation during restoration process in 2000-2003 • the 3m x 5m x 5m large cenotaph (empty tomb) was built ca. 1560 and consists of black marble, 24 reliefs of white marble as well as of bronze figures • University of Applied Science Mainz used TRITOP and ATOS-System in cooperation with Landesbaudirektion Tyrol

  19. Deformation Analysis / Deterioration Monitoring • Heads of Maison Tavel, Geneva • Architectorial details, originally painted stone • Deriving from the end of the middle age • Ecole d´íngénieurs de Genève

  20. Deformation Analysis / Deterioration Monitoring • 2D Images allow only a subjective estimation of damage and degradation • The actual scan-data from 2005 were compared to scan-data of plaster moldings from 1911 • Thus a qualitative and quantitative analysis is possible

  21. Reproduction ReproductionSynthetic Resin • Non-invasive 3D-Copying in different materials • For fragile objects, painted surfaces, etc. who are not allowed to be molded traditionally • Scaling in different sizes possible • Non-invasive 3D-Copying in different materials • For fragile objects, painted surfaces, etc. who are not allowed to be molded traditionally • Scaling in different sizes possible • Ecole d´íngénieurs de Genève

  22. ReproductionCNC-Milling • 2 Jaquemarts of Hotel de Ville de Fribourg • Human sized wooden painted statues articulated in order to ring a bell • Placed outside the building • Replacement with copies necessary due to degradation • Ecole d´íngénieurs de Genève

  23. ReproductionCNC-Milling • Statues were scanned by the use of TRITOP and ATOS-Systems • Ecole d´íngénieurs de Genève

  24. ReproductionCNC-Milling • From the gained STL-Data the CAM-Software generate the toolpath for the CNC-Milling Machine • A 4.5 axis milling device machined the statues from a lamellate-stuck larch block • Ecole d´íngénieurs de Genève

  25. ReproductionCNC-Milling Original, 3D-Scan-Data, CNC-Milled wooden copy, painted wooden copy - Ecole d´íngénieurs de Genève

  26. ReproductionFoundry • Reproduction of a gypsum bust of “Schiller” in bronze • Gaining 3D-Data of the gypsum bust • ACTech GmbH

  27. ReproductionFoundry • Using gained STL-Data to create a mold for the bronze foundry • Work in progress • Bronze copy of the bust • ACTech GmbH

  28. Acknowledgements We would like to thank all our involved customers and partners for these projects • Croatian Conservation Institute • University of Applied Science Mainz • Landesbaudirektion Tyrol • GOM mbH

  29. Thank you for your attention info@topomatika.hr www.topomatika.hr

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