Reference mark, method for recognizing reference marks and...

G - Physics – 06 – K

Patent

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G06K 9/32 (2006.01)

Patent

CA 2295222

The invention relates to a reference mark, a method for recognizing reference marks and a method for object measuring. According to the invention, the object is fitted with coded reference marks. Said marks are automatically recognized and decoded by the inventive method for reference mark recognition, whereupon a three-dimensional representation of the object is realized. According to the invention, the method compensates automatically for geometrical and radiometric interferences and generates at least one quality measurement to evaluate the quality of recognition and decoding. The invention particularly enables fast recognition and decoding of large numbers of reference marks and fast measuring of objects.

L'invention concerne une marque de repère, un procédé de reconnaissance de marques de repère et un procédé de mesure d'objets. Selon l'invention, l'objet est doté de marques de repère codées. Ces marques sont automatiquement reconnues par un procédé de reconnaissance de marques de repère puis décodées et une représentation 3D de l'objet est réalisée. Selon l'invention, le procédé compense automatiquement les perturbations géométriques et radiométriques pour la reconnaissance des marques et créée au moins une échelle qualité permettant d'évaluer la qualité de la reconnaissance et du décodage. L'invention permet notamment la reconnaissance et le décodage rapides d'un grand nombre de marques de repère et donc la mesure rapide de grands objets.

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