Panel paintings are complex structures which have a physical response to variations of relative humidity sometimes leading to damage. Curators and conservators regularly make condition reports to describe the evolution of the artworks state over time. To better understand anddescribe the causes for deterioration of wooden panels, an experiment was s et up in the Fabre Museum, Montpellier (France) in 2016. An hermetic humidity-controlled display case housed the painting whilst measurements of the deformation and strains on both sides of the panel were recorded using a double stereovision device which consisted of four cameras positioned on the walls of a museums exhibition room. The main objectives of this continuous monitoring project were to minimize the deterioration of the panel, to elaborate the best possible conservation treatment, to advise on the design of an auxiliary cradle, and to participate in the current reflections on climatic regulation in museums to reduce energy consumption.