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Procedure for quality inspection of welds based on macro-photogrammetric three-dimensional reconstruction

2015; Elsevier BV; Volume: 73; Linguagem: Inglês

10.1016/j.optlastec.2015.04.011

1879-2545

Manuel Rodríguez‐Martín, S. Lagüela, Diego González‐Aguilera, Pablo Rodríguez‐Gonzálvez,

Thermography and Photoacoustic Techniques

The results of visual inspection of welds depend on the visual ability of inspector. With the optical macro-photogrammetric low-cost procedure proposed in this paper only a digital single lens reflex camera with a macro-lens and a photogrammetric reconstruction software developed by the authors are needed for the generation of accurate and scaled 3D models of welds directly from images taken by a non-expert operator. This result eliminates the need of an in-situ assessment by the inspector, since it can be done directly using the 3D models generated, which the inspector can consult for the performance of all the measurements required by international standards.