Abstract
Many valuable archaeological artefacts have the size of a few centimetres or less. The production of relevant documentation of such artefacts is mainly limited to subjective interpretation and manual drawing techniques using a magnifier. Most of the laser scanners available for the archaeological purposes cannot reach sufficient space resolution to gather all relevant features of the artefact, such as the shape, the relief, the texture and any damage present. Digital photogrammetric techniques make measuring with high accuracy possible and such techniques can be used to produce the relevant archaeometric documentation with a high level of detail. The approaches for shooting a good macro photograph (in the photogrammetric sense) will be explored and discussed as well as the design of a calibration test-field and the self-calibration methods suitable for macro photogrammetry. Finally, the method will be tested by producing a photorealistic 3D-model of an ancient figurine.
Highlights
3D-digitalisation technology nowadays is demanding task for almost every museum, which wants to improve present documentation of artefacts kept and presented to visitors
Archaeometry benefits from many hardware and software solutions, dedicated to digitising archaeological artefacts, there are still many challenges in producing of top-quality 3D-model of particular artefacts, concerning its shape, size, transparency, and reflectivity (Guidi et al, 2013)
The importance and feasibility of photogrammetry are growing continuously, and now is the best alternative method for 3Ddigitizing of archaeological artefacts, because of following important features: the accuracy and level of details are strictly controlled by imaging scale and quality of the camera
Summary
3D-digitalisation technology nowadays is demanding task for almost every museum, which wants to improve present documentation of artefacts kept and presented to visitors. Beside restoration and valorisation purposes, 3D-models are often intended to be used as virtual artefacts stored in digital libraries These can be reached from a remote site by world wide web technologies, be accessible for exploration and investigation without space/time limits, usually provoked by museum's daily routines. Archaeometry benefits from many hardware and software solutions, dedicated to digitising archaeological artefacts, there are still many challenges in producing of top-quality 3D-model of particular artefacts, concerning its shape, size, transparency, and reflectivity (Guidi et al, 2013). Such issues motivate scientists to find new approaches concerning the methodology of 3D-digitising and 3D-modelling (Remondino et al 2013) as well as the new software solutions (Remondino et al 2012). Just a few centimetres per dimension or even less, are by 3D-digitalisation out of scope, because the laser
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