A user-adaptive symbol presentation for non-verbal communication

This paper presents the symbol presentation method for Universal Design (UD). Current symbol presentations for UD focus on how to design a simple and perceptible symbol for as many users as possible. As a result, the same symbol is presented to every user and therefore some users with specific attributes (e.g., color-blindness, cultural or physical conditions) can not perceive the symbol appropriately. Thus, we propose the user-adaptive symbol presentation in which optimal components (color, shape and background) for a symbol is automatically selected using Analytic Hierarchy Process (AHP). We also present how compatibility among those components should be taken into account in order to be intuitively perceivable as a whole pictogram. The experimental comparisons show that our proposed user-adaptive symbol presentation has considerable improved satisfaction related to visual effects and distinction of color/shape than the conventional approach.