Digisketch: taming anoto technology on LCDs

The Anoto technology uses a non-repetitive pattern printed on paper to enable a camera-equipped pen to locate its absolute position on that pattern. This technology is also used on projection screens to create large-sized interactive areas, but suffers from the drawbacks such as shadow casting or space requirements. Up to now, no implementation exists that enables a tracking on LCdisplays using the Anoto technology. Thus, we introduce Digisketch, which uses special films that can be applied to LC-displays, to back and front projections, or to glass, allowing pattern recognition for the pen’s camera. After describing the technical development of a prototype, we compare this new possibility of using Anoto compatible surfaces with other traditional tracking systems for LCscreens. Keywords Optical tracking, pattern recognition, user study, pen tracking, LCD, Anoto

• Type: Conference
• Year: 2010
• Where: EICS
• Authors: Ramon Linus Hofer, Andreas Kunz
• Keywords: Anoto Technology, EICS 2010, Large-sized Interactive Areas, Pattern Recognition