Method for characterising a part
AssigneesSafran Aircraft Engines, Centre National De La Recherche Scientifique, Ecole Normale Superieure De Cachan
InventorsJulien Schneider, Francois Hild, Hugo Leclerc, Stephane Roux
Life of this patent
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Abstract
A method of characterizing a part including obtaining an X-ray tomography image of the part and then a step of correlating the image with a reference wherein the correlation step includes searching among a predefined set of X-ray tomography image transformations for a transformation that minimizes the difference between the image and the reference in order to characterize the inside of the part.
Claims17
A method of characterizing a part, the method comprising a step of obtaining an X-ray tomography image of the part and then a correlation step of correlating said image of the part with a reference comprising an image of a standard part differing from the part, wherein the correlation step comprises applying each of a predefined set of X-ray tomography image transformations to the image of the part to produce transformed images, determining respective differences between the transformed images and the reference, and searching among the predefined set of X-ray tomography image transformations for a transformation that minimizes a difference between the image of the part and the reference in order to characterize an inside of said part and determine a topological difference between the image of the part and the reference to find defects in the part.
Dependencies are inferred from the claim text.