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Reducing interference between multiple infra-red depth cameras

  • US 10,049,458 B2
  • Filed: 01/20/2016
  • Issued: 08/14/2018
  • Est. Priority Date: 01/31/2011
  • Status: Active Grant
First Claim
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1. A depth camera system comprising:

  • a plurality of cameras with at least partially overlapping field of views;

    a plurality of sources, each arranged to project a structured light pattern; and

    a controller arranged to control a plurality of source-camera pairs to reduce the interference between projected structured light patterns and to receive signals from each of the cameras for use in depth determination, controlling a plurality of source-camera pairs comprising controlling a plurality of sources and a plurality of cameras, the controller being further arranged to control the movement of a source-camera pair relative to other source-camera pairs such that the structured light pattern projected by the source is fixed relative to the camera.

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