Apparatus and methods for determining the three-dimensional...

Details Apparatus and methods for determining the three-dimensional... Apparatus and methods for determining the three-dimensional...

G - Physics

06

K

G06K 9/74 (2006.01)

Patent

CA 2196563

A method and apparatus for mapping depth of an object (22) in a preferred arrangement uses a projected light pattern to provide a selected texture to the object (22) along the optical axis (24) of observation. An imaging system senses (32, 34) first and second images of the object (22) with the projected light pattern and compares the defocused of the projected pattern in the images to determine relative depth of elemental portions of the object (22).

Procédé et appareil de représentation de l'épaisseur d'un objet (22). Selon une disposition préférée, une configuration de lumière projetée donne une texture choisie à l'objet (22) le long de l'axe optique (24) d'observation. Un système d'imagerie détecte (32, 34) une première et une deuxième image de l'objet (22) à l'aide de la configuration de lumière projetée et compare la défocalisation de la configuration projetée dans les images pour déterminer l'épaisseur relative de parties élémentaires de l'objet (22).

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