Title :
The Colloidal Metamorphosis: Time Division Multiplexing of the Reflectance State
Author :
Ochiai, Yuya ; Oyama, Akira ; Hoshi, T. ; Rekimoto, Jun
Author_Institution :
Univ. of Tokyo, Tokyo, Japan
Abstract :
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.
Keywords :
light reflection; liquid crystal displays; optical films; optical projectors; optical variables measurement; screens (display); time division multiplexing; ultrasonic waves; LCD; colloidal metamorphosis; colloidal substance-soap film; diffuse-reflection surface; display system; optical illusion; optical measurement; projector screen; time division multiplexing; ultrasound wave; Acoustics; Colloidal lithography; Computer graphics; Multimedia communication; Optical surface waves; Reflection; Switches; Texture analysis; computer graphics; display; dynamic BRDF screen; graphics; material; multimedia; texture;
Journal_Title :
Computer Graphics and Applications, IEEE
DOI :
10.1109/MCG.2014.41
