Abstract
There are two main ways of building 3D models of archaeological objects. The first way is to use photogrammetry by means of image-based modelling systems. The second way is the use of 3D scanners. Both methods have advantages and problems. In this work, we propose a simple way to merge both methods to preserve the best of each method and obtain 3D models with high accuracy and excellent resolution and texture fidelity. Building on the work of other proposals offering an alternative solution, we demonstrate a model with absolute units, where the colour of the texture is calibrated to assure a very good photo finish. Fidelity results produced by RMS estimation of the deviations of the colour patches offer better results for the photo camera than for the cameras in the scanners used. The final model maintains the metric properties of the scanned model, which was our metric reference.
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