Detection of Surface Breaking Cracks Using Flying Line Laser Thermography: A Canny-Based Algorithm

In this work, we introduce a new algorithm for effectual crack detection using flying line laser thermography, based on the well-known Canny approach. The transforms input thermographic sequence into an edge map. Experimental measurements are performed metallic component that contains surface breaking cracks due to industrial use. specimen is tested thermography at different scanning speeds and powers. Results obtained with proposed additionally compared previously established spot thermography. Canny-based can be used in automated systems non-destructive testing.