Navigation for blind persons represents a challenge for researchers in vision substitution. In this field, one of the used techniques to navigate is guidance. In this study, we develop a new approach for 3D trajectory following in which the requested task is to track a light path using computer input devices (keyboard and mouse) or a rigid body handled in front of a stereoscopic camera. The light path is visualized either on direct vision or by way of a electro-stimulation device, the Tongue Display Unit, a 12x12 matrix of electrodes. We improve our method by a series of experiments in which the effect of the modality of perception and that of the input device. Preliminary results indicated a close correlation between the stimulated and recorded trajectories.
@article{arxiv.1310.4392,
title = {Electrotactile vision substitution for 3D trajectory following},
author = {Abdessalem Chekhchoukh and Malik Goumidi and Nicolas Vuillerme and Yohan Payan and Nicolas Glade},
journal= {arXiv preprint arXiv:1310.4392},
year = {2013}
}