Bokode is an imperceptible visual tag that encodes directional information for camera-based interaction from a distance. It uses an invisible barcode pattern to the human eye but can be decoded by a machine. When captured by a camera, the angle and position of the Bokode within the image allows extraction of encoded data as well as the camera's angle relative to the Bokode. This enables applications such as surface interaction, multi-user interaction, and augmented reality without requiring direct line of sight.
1. Bokode: ankit mohan, grace woo, shinsaku hiura, quinn smithwick, ramesh raskar camera culture group, MIT media lab imperceptible visual tags for camera based interaction from a distance
5. visible light barcodes space [UPC Code, QR Code, Data Matrix Code, Shot Code, Microsoft Tag, …] angle Bokode – this paper standard camera focused at infinity + time [IR remote, Sony ID CAM]
36. wide field of view Bokode via Krill eye compound superposition optics [Hiura et al. 2009]
37.
38. barcode RFID Bokode encoding spatial rf modulation angular decoder camera dedicated reader camera geometry no no yes physical size ~ cm ~ cm ~ mm cost ~ free ~ $0.05 ~ $0.05 (currently $5) range ~ cm ~ cm ~ m (with large aperture lens) line of sight yes no yes