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arXiv · 1705.05074

Cross-modal codification of images with auditory stimuli: a language for the visually impaired

Takahisa Kishino·Sun Zhe·Roberto Marchisio·Ruggero Micheletto
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Abstract

In this study we describe a methodology to realize visual images cognition in the broader sense, by a cross-modal stimulation through the auditory channel. An original algorithm of conversion from bi-dimensional images to sounds has been established and tested on several subjects. Our results show that subjects where able to discriminate with a precision of 95\% different sounds corresponding to different test geometric shapes. Moreover, after brief learning sessions on simple images, subjects where able to recognize among a group of 16 complex and never-trained images a single target by hearing its acoustical counterpart. Rate of recognition was found to depend on image characteristics, in 90% of the cases, subjects did better than choosing at random. This study contribute to the understanding of cross-modal perception and help for the realization of systems that use acoustical signals to help visually impaired persons to recognize objects and improve navigation

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Takahisa Kishino, Sun Zhe, Roberto Marchisio, Ruggero Micheletto. 2017-05-15. Cross-modal codification of images with auditory stimuli: a language for the visually impaired. https://arxiv.org/abs/1705.05074

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