MULTI-SCALE METHOD FOR MEASURING THE SHAPE, MOVEMENT AND/OR DEFORMATION OF A STRUCTURAL PART SUBJECTED TO STRESSES BY CREATING A PLURALITY OF COLORIMETRIC SPECKLED PATTERNS

摘要

The invention essentially relates to a method for measuring the movement and/or deformation of a study part subjected to an outside stress, said method implementing a device for acquiring colour digital images and image correlating means, characterised in that it comprises the following steps: · acquiring (250) a plurality of colour digital images of the surface of the study part using the colour digital image acquisition device while an outside stress is applied to said study part, · processing (260) the colour digital images acquired during the step for acquiring a plurality of colour digital images so as to show contrasting details on variable scales.