	US 12,141,961 B2
	Methods and associated systems for determining compliance of a part having an uneven profile with a reference drawing
Patrick Beauchemin, Québec (CA)
Assigned to VISIONX INC., Pointe-Claire (CA)
Appl. No. 17/776,196
Filed by VISIONX INC., Pointe-Claire (CA)
PCT Filed Nov. 13, 2020, PCT No. PCT/CA2020/051551 § 371(c)(1), (2) Date May 11, 2022, PCT Pub. No. WO2021/092696, PCT Pub. Date May 20, 2021.
Claims priority of provisional application 62/934,776, filed on Nov. 13, 2019.
Prior Publication US 2022/0392042 A1, Dec. 8, 2022
Int. Cl. G06T 7/00 (2017.01); G06T 7/33 (2017.01); G06T 7/62 (2017.01)

CPC G06T 7/001 (2013.01) [G06T 7/0006 (2013.01); G06T 7/337 (2017.01); G06T 7/62 (2017.01); G06T 2200/24 (2013.01); G06T 2207/30164 (2013.01)]

18 Claims

1. A method for determining compliance of a part with a reference drawing and according to a predefined tolerance, the part having an uneven profile comprising roots and crests, the method comprising:

providing an image of the part;

overlaying the image of the part with the reference drawing;

aligning the reference drawing with the image of the part;

determining, on the image of the part, a position of at least one of the roots and crests along the uneven profile of the part;

associating each position of said at least one of the roots and crests with a corresponding measurement point; and

for each measurement point:

determining a distance between the image of the part and the reference drawing;

determining whether the distance falls within the predefined tolerance; and

outputting the outcome of the determination.