Blind person with GPS navigation system

Blind person with GPS navigation system

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This image is part of the feature Blind Navigation

Credit: HANK MORGAN/SCIENCE PHOTO LIBRARY

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Caption: Navigation aid for the blind. Blind man Reginald Golledge testing the Personal Guidance System - an electronic navigational aid for blind people. The position of the user is determined by a GPS satellite navigation receiver, and the direction in which they are facing by an electronic compass. These data are compared with a computer-based digital map. The computer calculates the position of landmarks relative to the user, and synthesizes an identifying word (such as 'Library') for each. These words are fed into stereo earphones so the user can hear them coming from their correct relative locations. This system was developed at the University of California at Santa Barbara.

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Keywords: assistive technology, blind, blind man, blind person, blindness, disabilities, disability, gps receiver, healthcare, medical, medicine, navigation, navigation system, personal guidance system, satellite navigation, sight loss

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