Decorated Cross Slab 142, Clonmacnoise (Dynamic Light Movie)
Early christian decorated cross slab now on display at the visitors centre Clonmacnoise. Contains a three line cross with a circular expansion containing a triskelion, and looped terminals with key-pattern (Macalister, 1909).
Inscription: OROIT DO MAELMH?CH?L
Translation: Pray for Maelmh?ch?l
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Metadata
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Information
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Source
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The Discovery Programme |
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Contacts
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Mr Anthony Corns
Technology Manager
The Discovery Programme
63
Merrion Square
Dublin
D2
Dublin
Dublin
Ireland
+353 1 639 3039
+353 1 639 3710
info@discoveryprogramme.ie
The Discovery Programme
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Copyright Credit Line
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Copyright © The Discovery Programme |
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Europeana Rights
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Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND) |
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Spatial
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Clonmacnoise
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Protection Type
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National Monuments in State Care |
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Start Date
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400 |
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End Date
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800 |
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Period Name
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Early Christian Period |
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Materials
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Stone |
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Heritage Asset Type
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Decorated grave slab |
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Metadata
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Information
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Thumbnail
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Name
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Dynamic lighting video of Cross Slab 142 3D Model, Clonmacnoise |
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Description
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Dynamic lighting video of Cross Slab 142 3D Model, Clonmacnoise, Ireland |
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Type
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Movie |
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Format
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mov |
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Copyrights
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Copyright © The Discovery Programme
Creative Commons - Attribution, Non-Commercial, No Derivatives (BY-NC-ND)
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Link
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Landing Page
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Metadata
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Information
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Name
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Close Range Scanning |
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Description
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The Artec EVA scanner is used to generate high resolution models of surfaces with small scale detail. The Artec EVA uses structured light to record. A forensics tent is used to create a controlled lighting environment and ensure measurement can proceed regardless of the weather when used outdoors. Scanning is undertaken with the fastest speed setting (15 frames per second) and with a minimum 400 mm depth of field. The data is recorded with sufficient overlap between scans to ensure easy registration.
Resolution 0.5 mm
Accuracy 0.1 mm
Accuracy over distance 0.03% over 100 cm
Texture Resolution 1.3 mp
Colours 24 bpp
Light Source flash bulb (no laser)
Video frame rate 16 fps
Exposure time 0.0002 s
Post-processing is done in Artec Studio 9 software: individual scans are edited, aligned, before a final surface is generated using global registration, fusion, and a small objects filter algorithm. If required, a textured surface can also be created. The model is exported from Artec Studio 9 as an .obj file. For dissemination purposes a 3D pdf of the model is generated using Geomagic Studio 2012. |
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Purpose
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Measured survey |
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Techinques
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Photogrammetric scanning,Modelling |
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Equipment
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Artec Studio 9.2,HP Computer,Artec EVA |
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Actor
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Gary Devlin, Individual, Geo-surveyor |
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Actor
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Robert Shaw, Individual, Senior Geo-surveyor |
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Actor
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Anthony Corns, Individual, Technology Manager |
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Actor
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Patrick Griffin, Individual, 3D Modeller |
