RFIG/Bokode talk at RFID Journal 2010
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RFIG/Bokode talk at RFID Journal 2010
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Semelhante a RFIG/Bokode talk at RFID Journal 2010
Semelhante a RFIG/Bokode talk at RFID Journal 2010 (20)
Mais de Camera Culture Group, MIT Media Lab
Mais de Camera Culture Group, MIT Media Lab (20)
RFIG/Bokode talk at RFID Journal 2010
- 1. Bokode: Ankit Mohan Camera Culture Group, MIT Media Lab Imperceptible Visual Tags for Camera Based Interaction From a Distance
- 2. Camera Culture Ramesh Raskar We focus on creating tools to better capture and share visual information http://www.cameraculture.info
- 4. RFI G = RF Id + Geometry Find tag location using handheld Projector Photosensing Wireless Tags Many geometric ops Interactive stabilized projection location of photosensitive tags using a hand-held projector
- 5. RFIG prototype setup Tag Modified Projector
- 6. RFI G = RF Id + Geometry
- 8. Prakash: motion capture by space labelling
- 11. ideal barcode invisible to the human eye ; easily decodable by a machine. Bokode
- 12. 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]
- 13. barcode ( spatial) camera sensor
- 14. camera sensor barcode ( space)
- 16. sensor Bokode ( angle) camera
- 18. Bokode f b generate directionally encoded information
- 19. Bokode camera f b capture directionally encoded information f c
- 21. Bokode: any barcode pattern datamatrix code (42,245,123)
- 23. identity from Bokode id = (42,245,123)
- 25. prototype – exploded led: 120 ° view angle, 1350mcd pattern: 15µm resolution lenslet: f=8mm, Φ=3mm cost: ~$5
- 26. capturing Bokodes focus blur (85mm f/1.8; infinity focus) motion blur (50mm f/8; ~2cm motion)
- 28. capturing Bokodes cell-phone camera close to the Bokode (10,000+ bytes of data)
- 29. Bokode f b Bokode image depends on camera angle camera
- 30. Bokode f b f c Bokode image depends on camera angle camera
- 31. camera x y id=42 x=9 y=5 id=42 x=9 y=6 id=42 x=9 y=7 id=42 x=7 y=5 id=42 x=7 y=6 id=42 x=7 y=7 id=42,x=8,y=7 id=42,x=8,y=5
- 32. digital angle from Bokode id = (42, 10,7 )
- 34. traditional AR markers ARToolKit [ Kato and Billinghurst 1999] ARTag [ Fiala 2005] skew of marker
- 37. retro-reflector for passive Bokode
- 38. wide field of view Bokode via Krill eye compound superposition optics [Hiura et al. 2009]
- 40. 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
- 43. multi-user interaction Bokode laser pointers
- 44. near field communication Bokode camera cell phone 1 Bokode camera cell phone 2
- 46. acknowledgements meng heng touch, donald eng, daniel taub grace woo shinsaku hiura quinn smithwick ramesh raskar
- 49. barcode RFID Bokode encoding spatial rf modulation angular decoder camera dedicated reader camera geometry ~ 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
- 51. Barcodes markers that assist machines in understanding the real world
- 54. Bokode camera f b f c less distance more of Bokode imaged
- 55. less distance more of Bokode imaged Bokode camera f b f c
Notas do Editor
- jointly
- Hold it up
- Mention that it works upto ~2 meters with a bokode mask of 15µm resolution and a 85/1.8 lens
- Perspective skew
- Jointly generate and capture 2 microns 4 meters away
- 2 microns 4 meters away
- Mention that it works upto ~2 meters with a bokode mask of 15µm resolution and a 85/1.8 lens