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Guardian Stone, Knowth (Images)
There are more than 300 decorated stones in the great tombs of Knowth, the greatest concentration of megalithic art in Europe. Some of the more dramatic designs are on the orthostats in the passages at the approach to the chambers.Orthostat 49; also known as the Guardian Stone, is situated in the eastern passage tomb at Knowth. The stone is decorated with an anthropomorphic figure.SMR No.: ME019-0…
Creator
- The Discovery Programme
Publisher
- The Discovery Programme
Subject
- National Monuments in State Care
- Megalithic Art
- archaeological sites
- archaeology
- national monuments
- megalithic monuments
- Archaeological site
- Archaeology
Type of item
- Image
Medium
- Stone
- Stone
Creator
- The Discovery Programme
Publisher
- The Discovery Programme
Subject
- National Monuments in State Care
- Megalithic Art
- archaeological sites
- archaeology
- national monuments
- megalithic monuments
- Archaeological site
- Archaeology
Type of item
- Image
Medium
- Stone
- Stone
Providing institution
Aggregator
Intermediate provider
Rights statement for the media in this item (unless otherwise specified)
- http://creativecommons.org/licenses/by-nc-nd/4.0/
Rights
- Copyright © The Discovery Programme
Temporal
- Neolithic Period
Places
- Guardian Stone (Orthostat 49) Eastern Tomb, Knowth
Provenance
- Close Range Scanning, Knowth. 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 mmAccuracy 0.1 mmAccuracy over distance 0.03% over 100 cmTexture Resolution 1.3 mpColours 24 bppLight Source flash bulb (no laser)Video frame rate 16 fpsExposure time 0.0002 sPost-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.
Identifier
- http://3dicons.dcu.gr/object/HA/1685
Providing country
- Ireland
Collection name
First time published on Europeana
- 2015-01-28T10:56:42.971Z
Last time updated from providing institution
- 2024-08-19T11:25:33.309Z