Experimentation of a three-focal photogrammetric survey system as non invasive technique for analysis and monitoring of painting surfaces decay condition

This is a contribution to the process of monitoring and evaluation of frescoes laser cleaning, quantitative pictorial material loss detection, and qualitative data acquisition, necessary to evaluate the state of conservation of pictured surfaces (decay typologies, physical characteristics, morphology, etc.), useful to manage conservation interventions. We wished to verify the efficiency of an innovative survey system, based on the acquisition and processing of multi-view high quality images sequences, as an innovative and non invasive inquiry instrument that can support traditional techniques (like visual and instrumental analysis) in collecting colorimetric and morphologic data of paintings needing restoration, and for superficial decay kinetics analysis. © 2011 Taylor & Francis Group, London.