The Community for Technology Leaders
Green Image
Issue No. 04 - July-Aug. (2014 vol. 34)
ISSN: 0272-1716
pp: 42-51
Yoichi Ochiai , University of Tokyo
Alexis Oyama , JiseCHI Future Imaging Lab
Takayuki Hoshi , Nagoya Institute of Technology
Jun Rekimoto , University of Tokyo
Specular reflection plays an important role in an image's appearance. However, LCDs don't have sufficient contrast to express specular reflection, and ordinary projector screens only have diffuse-reflection surfaces. A new display system projects ultrasound waves to dynamically change the reflection state of a screen made of a colloidal substance--soap film. The system uses time division multiplexing of the diffuse and specular states to produce realistic appearances. It employs an optical illusion that exploits the characteristics of human sight. Optical measurements and a user study validated this approach's effectiveness.
Reflection, Texture analysis, Acoustics, Optical surface waves, Colloidal lithography, Switches, Computer graphics, Multimedia communication

Y. Ochiai, A. Oyama, T. Hoshi and J. Rekimoto, "The Colloidal Metamorphosis: Time Division Multiplexing of the Reflectance State," in IEEE Computer Graphics and Applications, vol. 34, no. 4, pp. 42-51, 2014.
532 ms
(Ver 3.1 (10032016))