Christie Digital Systems USA, Inc.

Randy Spruyt

Mark Lamm

Chad Faragher

John Otto Vieth

Ryan Thomas Morris

Colin Bartlett Yardley

A device, system and method for generating a mapping of projector pixels to camera pixels and/or object positions using alternating patterns is provided. A device controls a projector to project, while a camera acquires frames thereof, in a sequence: alternating patterns; and structured light patterns, the alternating patterns comprising first and second predetermined patterns projected before and/or after the structured light patterns. The device determines, using the frames as coordinated with the alternating patterns, one or more functions relating respective indices of the alternating patterns and the frames, on one or more of a camera pixel-by-pixel basis and a camera scan-line-by-scan-line basis. The device generates, and stores at a memory, a mapping of projector pixels to one or more of camera pixels and positions on an object in the overlapping fields-of-view, based on relating the frames with the structured light patterns using the one or more functions.

Device, system and method for generating a mapping of projector pixels to camera pixels and/or object positions using alternating patterns

A device, system and method for subliminally projecting structured light patterns is provided. A computing device alters at least a portion of a plurality of content bitplanes to subtract a structured light bitplane therefrom, such that pixels of the structured light bitplane and the plurality of content bitplanes, when altered, sum to a same respective brightness as corresponding pixels of the plurality of content bitplanes before alteration. A a projector projects the structured light bitplane and the plurality of content bitplanes having the structured light bitplane subtracted therefrom. A camera captures images of the structured light bitplane as projected by the projector, for example to calibrate the projector.

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Waterloo, Canada

Randy Spruyt