Coded target and photogrammetry method using such targets

Details Coded target and photogrammetry method using such targets Coded target and photogrammetry method using such targets

G - Physics

01

C

G01C 11/00 (2006.01) G01C 15/02 (2006.01)

Patent

CA 2502993

The invention relates to a coded target which is used in photogrammetry. According to the invention, the coded target is circular and consists of at least two concentric coding rings comprising at least two equal angular sections which are disposed around a central area. Said central area comprises a central, homogeneously-coloured disk which is surrounded by a complementarily-coloured ring which is, in turn, surrounded by a ring of the same colour as the central disk. The invention also relates to a photogrammetry method which can be used for the automatic detection and identification of such targets.

La présente invention concerne codée utilisée en photogrammétrie, qui est circulaire et comporte au moins deux anneaux de codage concentriques d'au moins deux secteurs angulaires égaux, disposés autour d'une zone centrale comportant un disque central de couleur homogène entouré d'un anneau de couleur complémentaire, lui-même entouré d'un anneau de même couleur que le disque central. La présente invention concerne également un procédé de photogrammétrie permettant de détecter et d'identifier automatiquement de telles cibles.

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