The document discusses pocket projectors and their potential uses and applications. Pocket projectors are small, portable projectors that can project large images using LED lights. They allow for mobility and the overlay of images on real objects. Potential applications mentioned include use in augmentation, communication by projecting onto objects tagged with sensors, and collaboration through shared projection. Challenges include limited brightness but new opportunities exist in areas like aware projection that is decoupled from display size and can interact with tagged objects and the physical world.

1. Pocket Projectors All-in-one Solution for Mobility, Augmentation, Communication Ramesh Raskar Senior Research Scientist Mitsubishi Electric Research Labs, Cambridge, MA

2. Ramesh Raskar Mitsubishi Electric Research Labs (MERL) Cambridge, MA, USA Pocket Projectors All-in-one Solution for Mobility, Augmentation, Communication

3. Ultimate Personal Display ? Mitsubishi Electric Pocket Projector DLP based with R , G , B LEDs Instant on, Battery-pack Available Now

6. Small Projector… Estimates and Projections Quoted from Various Sources Big Projections… 142,938,000 131,706,000 Rough Base Totals 55,000,000 50,000,000 Others (ie. RV’s, PDA’s, etc.) (Very rough estimate only) 64,200,000 60,000,000 Gaming Systems 21,893,000 20,161,000 Digital Camera 1,845,000 1,545,000 Portable DVD Players Projected 2006 Sales Projected 2005 Sales Estimated Possible Partner Device for Attachment

16. Pocket Projector Developments iLamps 2002 RFIG Lamps 2003-04 Pocket Projector 2004-05

17. Stabilized Desktop-like Interaction Sensor support What components are needed ?

20. Image Quasi-Stabilization Eliminate hand jitter using inertial sensors+camera

21. Absolute Stabilization Image stays registered with world features

23. Changing Texture and Virtual Lighting Raskar, Welch, Low, Bandyopadhyay, “ Shader Lamps ” (2000)

25. Image Overlay on Objects Raskar, vanBaar, Beardsley et al, Siggraph 2003

28. Maskless Lithography DLP Micro-mirror array Fast parallel operation on optical resists Optical Resists

29. Parallel Switching and Routing at ~100KHz Fixed diffraction grating + Optical switches Optical Networking Gear

30. Pocket Projector = Glorified Remote Control + Glorified Laser Pointer Optical Communication

31. Find tag location using Pocket Projector Photosensing Wireless Tags Many geometric ops R F I R F I D Interactive stabilized projection (Radio Frequency Id & Geometry ) G Siggraph 2004

32. Conventional Passive RFID

34. Prototype Tag RF tag + photosensor

35. Support for handheld projection + RF Reader

36. RFI G : Finding Tag Location and Image Overlay Siggraph 2004

39. Mitsubishi PocketProjector ™ LED-Based DLP ® Projector