Infrared markers on paper
These infrared markers are passive — they are illuminated by ambient light. They can be coated on various substrates: paper, plastic, ceiling tiles, floor tiles, metal, wood, etc. The hidden infrared patterns can be detected using standard near infrared (NIR) cameras.
Ceiling Tiles
They can be easily installed just like regular ceiling tile and can be repositioned if need to.
Floor Tiles
Use some of these to replace a small fraction of your existing floor tiles and you can have landmarks in your offices, stores, museums, libraries, airports, etc., just like the fiducial markers in the Amazon warehouses.
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