The CEA is developing new advanced imaging algorithms for non-destructive testing (NDT), in particular for the inspection of nuclear welds. These parts are complex in terms of both their geometry and the description of their material properties. Lack of knowledge of these characteristics results in the production of images with a low signal-to-noise ratio, compromising defect detection and characterization. The aim is to build on previous work carried out in the lab, based on an adaptation of estimated material properties, in order to explore the limits of this approach and develop new tools that will enable this technology to be applied to a concrete industrial situation.