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Basic experimental study on visibility dependence on the signal sign pattern for low vision people

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4 Author(s)
Oguchi, K. ; Inf. Networking Lab., Seikei Univ., Musashino, Japan ; Harasaki, K. ; Terada, S. ; Hanawa, D.

Good visibility is essential to maintaining QoL (Quality of Life). Unfortunately, the world is rapidly aging, and aging degrades vision performance. In order to create future home/campus environments, we clarify the basic attributes of visibility that are needed to support low vision, or vision-impaired people. In an experiment, 30 subjects wear goggles simulating visual disturbances (constriction of the visual field and wall-eye) to determine the maximum distance that permitted successful recognition between the subject and a sign. The signs used here have 5 different patterns, from a simple humanoid to a humanoid plus blinking bricks. Subjects' comments on visibility are also gathered after the distance experiment. The result implies the size of sign needed for vision impaired people in home/campus environments.

Published in:

Telecommunications and Signal Processing (TSP), 2011 34th International Conference on

Date of Conference:

18-20 Aug. 2011