Photogrammetric techniques at Campo Lameiro, Galicia

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Campo Lameiro

Campo Lameiro

[CAA 2015 – session 3C abstract]

We propose photogrammetry as a technique that allow us to create a 3D model, oriented to reduce the different problems of subjectivity that are present in the old systems of registry, and furthermore to study the rock surface without touching it…

by Benito VILAS, Alia VÁZQUEZ, Miguel CARRERO





CAA2015_9043rd International Conference on Computer Applications
and Quantitative Methods in Archaeology (CAA 2015)

Session 3C: Computer and rock art studies:
data collection, interpretation and communication

[March 31 2015, Siena] – abstract


The Use of Photogrammetric Techniques
for Recording the Rock Art Carving
at Campo Lameiro (Galicia, Northern Spain)

There exists so many different methodologies to record the open-air rock art carving. In Galicia researches have used traditionally systems of registry such as night lighting or frottage to try to reproduce the rock art-carving present at the stones, methods that although being very effective are subject to a great subjectivity (Seoane Veiga Yolanda 2005).

Cachada do Tremesal (click to enlarge)

Cachada do Tremesal (click to enlarge)

We propose photogrammetry as a method and technique that allow us to manipulate the pictures taken at the field to create a 3D model that allow us to study the rock art carving as it has contrasted in other places (Diaz Andreu Margarita, 2013). This technique is oriented to reduce the different problems of subjectivity that are present in the old systems of registry, and furthermore this technique allows studying the rock surface without touching it.

A preliminary advance about the use of photogrammetry over the Galician petroglyphs with the use of Radiance Scaling filter (Granier Xavier et al. 2012) confirms the effective use of this technique. In fact, this technique has allowed us to see different motifs that were practically invisible with precedent methodologies.

Benito VILAS, University of Wales Trinity Saint David
Alia VÁZQUEZ, University of Santiago de Compostela
Miguel CARRERO, University of Santiago de Compostela

Rotea do Mendo Central part (click to enlarge)

Rotea do Mendo Central part (click to enlarge)

 


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