Apparatus for detecting bubbles in coverslip adhesive

G - Physics – 06 – K

Patent

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G06K 9/00 (2006.01)

Patent

CA 2200444

The detection of bubbles in coverslip adhesive. Bubbles (15, 16, 17) in coverslip adhesive may span large areas of the coverslip (14). An automated cytology system (500) acquires 4x gray scale images (22) of the slide (10). Image conditioning (24) is then performed. The conditioned gray scale image (22) is binomially filtered providing a binomial filtered image (34). The gray scale image (22) is subtracted from the binomial filtered image (34) to produce a high pass enhanced image (36). An object mask detection (26) is then performed on the high pass enhanced image (36). Objects are classified to identify bubble edges.

Détection des bulles dans un adhésif de lamelles de recouvrement. Les bulles (15, 16, 17) contenues dans l'adhésif d'une lamelle de recouvrement peuvent recouvrir d'importantes surfaces d'une telle lamelle (14). Un système d'observation cytologique automatisé (500) obtient des images dans l'échelle des demi-teintes (22) à grossissement de 4x sur la lame (10). Le conditionnement des images (24) est ensuite effectué. L'image conditionnée dans l'échelle des demi-teintes (22) est soumise à un filtrage binômial donnant une image binômiale filtrée (34). L'image dans l'échelle des demi-teintes (22) est soustraite de l'image binômiale filtrée (34) pour former une image renforcée par filtrage passe-haut (36). Une détection de masque d'objet (26) est ensuite effectuée sur l'image renforcée par filtrage passe-haut (36). Les objets sont classés pour identifier les bords des bulles.

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