Methodological considerations of integrating portable digital technologies in the analysis and management of complex superimposed Californian pictographs: From spectroscopy and spectral imaging to 3-D scanning

Robinson, David Wayne orcid iconORCID: 0000-0002-0729-5011, Baker, Matthew J., Bedford, Clare, Perry, Jennifer, Wienhold, Michelle, Bernard, Julienne, Reeves, Dan, Kotoula, Eleni, Gandy, Devlin et al (2015) Methodological considerations of integrating portable digital technologies in the analysis and management of complex superimposed Californian pictographs: From spectroscopy and spectral imaging to 3-D scanning. Digital Applications in Archaeology and Cultural Heritage, 2 (2-3). pp. 166-180. ISSN 22120548

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Official URL: http://dx.doi.org/10.1016/j.daach.2015.06.001

Abstract

How can the utilization of newly developed advanced portable technologies give us greater understandings of the most complex of prehistoric rock art? This is the questions driving The Gordian Knot project analysing the polychrome Californian site known as Pleito. New small transportable devices allow detailed on-site analyses of rock art. These non-destructive portable technologies can use X-ray and Raman technology to determine the chemical elements used to make the pigment that makes the painting; they can use imaging techniques such as Highlight Reflective Transformation Imaging and dStretch© to enhance their visibility; they can use digital imagery to disentangle complex superimposed paintings; and they can use portable laser instruments to analyse the micro-topography of the rock surface and integrate these technologies into a 3-D environment. This paper outlines a robust methodology and preliminary results to show how an integration of different portable technologies can serve rock art research and management.


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