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Science
23 Sep  2019 1115

"Sound Vision" for the blind

EU scientists have developed navigation technology, transforming the visual objects in the sounds and vibrations.

stick test with such functions were held in the University of Bucharest. "The system includes a number of three-dimensional cameras that continuously scans the environment -. Very fast, 20 times a second received information is processed by the visual computing algorithms user gets audible snap, computer generated He literally hears the objects through the vibration on.. zone, "- said professor Alyn Moldovenu.
At the disposal of the blind - three-dimensional sound and tactile feedback to the device on his belt. The intensity of sound varies depending on the distance to the object.

The new app allows the blind to recognize not only the material world around, but also to read the signs. Just press the button - the user immediately hear the playback written: pharmacy, supermarket or subway station. The system identifies the most important objects on the way the visually impaired - it can be a staircase, doors, moving around people. Every change in the environment immediately recognized by the device.

Runar Unnporsson engineer adds: "Normally, the blind can only recognize it, it touches a cane, all that a meter or more above their heads, they are no longer available as a prototype Our expanding their field of interaction with objects."

The new technology solution should take into account not only the expected obstacles, but also sudden changes - the transition from light to shadow, rain, noise around, says Professor Simon Caraiman: "Outdoors, we rely on data from two stereo cameras, they simultaneously scan the environment we all the time. we remember that it is a vital technology, it can not fail, "forgetting" to signal the pit, for example. "
Project Sound of Vision, patronized by the European Union started in 2015 with the participation of researchers from 5 countries. Currently, scientists are improving the system in the hope of bringing it to market within 2 years.

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