Hewlett-packard Development Company, L.p.

Hamadi Jamali

David Bradley Short

Otto Kenneth Sievert

Robert D Blanton

In one example, a projection capture system includes: a visible light projector to project a pattern on to a surface of a GUI control object placed on or above a work surface; a visible light camera to capture an image of the pattern projected on to the surface of the control object; and a controller operatively connected to the projector and the camera. Programming on the controller determines (1) a lateral position of the pattern relative to a reference position associated with the work surface based on the pattern image captured by the camera and (2) a height of the pattern above the work surface based on the lateral position of the pattern.

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Escondido, CA, United States of America

Hamadi Jamali