Apparatus and method for detecting a pointer relative to a...

Details Apparatus and method for detecting a pointer relative to a... Apparatus and method for detecting a pointer relative to a...

G - Physics

06

K

G06K 11/06 (2006.01) G06F 3/042 (2006.01)

Patent

CA 2564262

An apparatus (50) for detecting a pointer relative to a touch surface (54, 254, 354) includes at least two spaced imaging assemblies (58) having overlapping fields of view encompassing the touch surface. The imaging assemblies see the touch surface in three-dimensions as a perspective view. The imaging assemblies acquire overlapping images from different locations. A processor (60) receives and processes image data generated by at least one of the imaging assemblies to determine the location of the pointer relative to the touch surface.

L'invention porte sur un appareil (50) de détection de la position d'un pointeur sur une surface tactile (54, 254, 354) comportant au moins deux ensembles d'imagerie (58) présentant des champs visuels superposés englobant la surface tactile. Les ensembles d'imagerie qui voient la surface tactile, en trois dimensions, comme une perspective, capturent des images superposées de différents emplacements, et un processeur (60) reçoit et traite les données d'images produites par l'un au moins des ensembles d'imagerie pour déterminer la position du pointeur sur la surface tactile.

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