METHODS AND PLANTS FOR LOCATING POINTS ON COMPLEX SURFACES
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United States of America Patent
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Aug 19, 2021
app pub date -
Jun 11, 2019
filing date -
Jun 12, 2018
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Abstract
A method for localizing defects on a complex surface of an object may include: realizing an acquisition assembly with an electromagnetic wave emission device and an optoelectronic device for detecting electromagnetic waves reflected by the complex surface; defining a scan path at a distance from the complex surface; and during a defect search procedure: moving the acquisition assembly along the path; defining instants during the moving of the acquisition assembly at which the acquisition assembly acquires an image of the complex surface as a two-dimensional pixel matrix of the optoelectronic device; storing consecutive two-dimensional pixel matrices obtained along the path; storing coordinates of the acquisition assembly along the scan path and associating the coordinates with respective two-dimensional matrices of the consecutive two-dimensional pixel matrices; locating detects in the consecutive two-dimensional pixel matrices; and/or determining spatial coordinates of the defects detected in the matrix using a linear or linearizable transformation.
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