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Automated analyses of degradations


If the digital acquisition of a monument aims in the first place at exhaustively determine its geometry, current sensors and data processing software also facilitate the extraction of information related to the different pathologies of degradation of the digitized surfaces. The cartographies thus generated can be used by restorers and curators.

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Facade reproduced in 3D of Lausanne Cathedral (VD), colourisation of the points from photographs
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Roughness analysis
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Roughness analysis: we can see the erosion, the holes or the missing parts appear
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Intensity analysis: help understand crusts, sediments and patinas
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Thematic analysis by colour: creation of RGB maps
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Thematic analysis by colour: help understand des chromatic alterations
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Thematic analysis by colour: help understand crusts and sediments on the surface
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Thematic analysis by colour: help understand mosses and lichens
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Typologies of the detected degradations ordered according to the glossary of the ICOMOS