Fig. 6From: Unsupervised learning approach to automation of hammering test using topological informationSchematics of the test blocks used for the delamination detection experiments, these blocks present crack of various inclination from the surface: a 15°, b 30° and c 45°. It is worth noticing that these defects were man-made with the intention to closely reproduce field-found delaminations (dimensions specified in mm)Back to article page