Application of 3D digital image correlation to track displacements and strains of canvas paintings exposed to relative humidity changes
- 12 March 2014
- journal article
- Published by Optica Publishing Group in Applied Optics
- Vol. 53 (9) , 1739-1749
Abstract
This paper introduces a methodology for tracking displacements in canvas paintings exposed to relative humidity changes. Displacements are measured by means of the 3D digital image correlation method that is followed by a postprocessing of displacement data, which allows the separation of local displacements from global displacement maps. The applicability of this methodology is tested on measurements of a model painting on canvas with introduced defects causing local inhomogeneity. The method allows the evaluation of conservation methods used for repairing canvas supports.Keywords
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