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- W184077970 abstract "The work we want to present here is the realization of a reduced resolution matrix which allows the recognition of metallic objects. These ones must have at least a flat The matrix is built of sixty four eddy currents proximity sensors and it allows to obtain the outline of an object with a good accuracy. The outline of the object which is the matrix will be extracted from the frequency measurements. A gradient method is not sufficient because it is not entirely reliable on the grounds of the very low resolution used. On the other hand, the knowledge of the sensor output when we approach a sheet metal edge in its plan, used both with a comparaison of the nearest neighbours sensor state, can lead to the accurate drawing of the object outline Le travail que nous présentons ici est la réalisation d'une matrice basse resolution qui permet de reconnaître des pieces meétalliques présentant au moins une partie plane. Elle est construite à partir de soixante quatre capteurs magnétiques de proximité à courants de Foucau It. Elle permet d ‘extraire Ie contour d' un objet avec une bonne precision. Celui-ci est obtenu à partir de mesures de fréquence. Une méthode de gradient n'est pas entierement fiable compte tenu de la résolution relativement basse de la matrice. Mais la connaissance de la réponse d'un capteur quand on approche une tale dans son plan, utilisée conjointement avec une comparaison de I'etat des éléments sensibles plus proches voisins permet un tracé correct du contour." @default.
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- W184077970 date "1989-07-01" @default.
- W184077970 modified "2023-10-18" @default.
- W184077970 title "Rapid Recognition of Simple Shape Metallic Objects in Reduced Resolution Images" @default.
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- W184077970 doi "https://doi.org/10.1016/s1474-6670(17)54410-9" @default.
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