A Tactile Palette to Translate Graphics for the Visually Impaired
نویسندگان
چکیده
Spatial haptic displays, such as electrostatic vibration (electrovibration) based friction displays, augment flat panels and surfaces with spatially arranged tactile content. Such devices can be useful for the visually impaired to translate visual images to tactile ones on demand. In this paper, we explore a tactile palette that consisted of a set of six perceptually distinct tactile stimuli corresponding to six distinct colors. Users with normal vision overlay colors from the palette on the visual image. The overlaid image is rendered on the tactile display using a “color to frequency” mapping algorithm. In this preliminary exploration, we evaluated the use of graphic-to-tactile translation in variety of cases on an electrovibration device.
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