Abstract: Disclosed herein are methods and systems for generating a fingerprint for verification of a reference object, such as a layer or ply during a composite laminate layup procedure. An exemplary method includes the steps of generating at least one reference image of a reference object; removing lighting effects from the at least one reference image to create at least one processed image; generating a reference fingerprint for the reference object based on the at least one processed image; generating at least one candidate image of a candidate object; generating a candidate fingerprint for the candidate object based on the at least one candidate image; and comparing the candidate fingerprint and the reference fingerprint to determine a correlation. An alert is generated based on the comparison. The alert is indicative that the correlation between the candidate fingerprint and the reference fingerprint exists.

Abstract: A method for drawing a flexible sleeve over an elongated mandrel includes placing a ring within a lumen of the sleeve. A first end of the sleeve is fixed against movement relative to a first end of the mandrel. A first end portion of the sleeve is inverted over a first end portion of the mandrel so as to define a circumferential cuff in the sleeve, and the ring is positioned concentrically within the circumferential cuff. Using, e.g., a magnet, the ring is then urged longitudinally along the mandrel and toward an opposite, second end thereof, such that the sleeve is inverted over at least an outer surface of the mandrel.

Abstract: Disclosed herein are methods and systems for generating a fingerprint for verification of a reference object, such as a layer or ply during a composite laminate layup procedure. An exemplary method includes the steps of generating at least one reference image of a reference object; removing lighting effects from the at least one reference image to create at least one processed image; generating a reference fingerprint for the reference object based on the at least one processed image; generating at least one candidate image of a candidate object; generating a candidate fingerprint for the candidate object based on the at least one candidate image; and comparing the candidate fingerprint and the reference fingerprint to determine a correlation. An alert is generated based on the comparison. The alert is indicative that the correlation between the candidate fingerprint and the reference fingerprint exists.