Paper
30 October 2009 Electronic invisible code display unit for group work on life review activity
Kunio Sakamoto, Tomofumi Yamanari
Author Affiliations +
Proceedings Volume 7498, MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications; 74984Z (2009) https://doi.org/10.1117/12.831348
Event: Sixth International Symposium on Multispectral Image Processing and Pattern Recognition, 2009, Yichang, China
Abstract
The authors have researched a support system of the reminiscence and life review activity. This support system consists of an interactive tabletop display and interface system. Many interaction systems are proposed until now. An invisible code is one of the useful technologies for a computer interaction. The invisible codes provide us with an operating environment using a pen-like device. However, this technology is applied to the only paper media. The authors think we want to realize an interaction using the invisible code on an electrical media. In this paper, we propose a method to display invisible codes using LCD panels and to detect a polarized symbol image with a conventional CCD camera.
© (2009) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kunio Sakamoto and Tomofumi Yamanari "Electronic invisible code display unit for group work on life review activity", Proc. SPIE 7498, MIPPR 2009: Remote Sensing and GIS Data Processing and Other Applications, 74984Z (30 October 2009); https://doi.org/10.1117/12.831348
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KEYWORDS
LCDs

Wave plates

Liquid crystals

Polarization

Polarizers

Cameras

Displays

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