Prototype system enables the visually impaired to ‘see’ the world with sound

If you’re lucky enough to have perfect eye sight, it is incredibly difficult to imagine what the world is like for a visually impaired person. There have been some astounding breakthroughs in the development of new technologies to assist the blind which aim to replicate the function of the eye, but this project takes a totally different approach. The Cognitive Aid System for Blind People (CASBLiP) uses lasers and digital video images to create a three-dimensional acoustic map which, when relayed through headphones, enables users to "see" the world with sound.

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