Device for realizing dusty seed on material to be examined by stereocorrelation of images to measure deformations of material, has support constituting dusty seed with irregular patterns and uniform distribution on material

摘要

The device has a flat support provided with a set of openings i.e. stencil key set, that is different in shapes, sizes and orientations from one another. The support constitutes a dusty seed with irregular patterns (M10-M13) and uniform distribution on a material to be examined. The openings of the support are arranged in a non-aligned manner, where the openings of the support comprise an irregular spacing with respect to one another. The support is made of flexible plastic material i.e. paper. An independent claim is also included for a method for measuring deformations of a material by stereocorrelation of images.