An experimental system for auditory image representations

An experimental system for the conversion of images into sound patterns was designed to provide auditory image representations within some of the known limitations of the human hearing systems possibly as a step towards the development of a vision substitution device for the blind. The application o...

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Bibliographic Details
Published in:IEEE transactions on biomedical engineering 1992-02, Vol.39 (2), p.112-121
Main Author: Meijer, P.B.L.
Format: Article
Language:English
Subjects:
Acoustics
Analog-Digital Conversion
Application software
Auditory system
Batteries
Biomedical Engineering - methods
Cameras
Computer Systems
Hearing - physiology
Humans
Image converters
Image Enhancement
Image Processing, Computer-Assisted
Image representation
Models, Theoretical
Oscillometry
Power dissipation
Prototypes
Signal Processing, Computer-Assisted
Sound
Vision Disorders - rehabilitation
Vision, Ocular
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Summary:An experimental system for the conversion of images into sound patterns was designed to provide auditory image representations within some of the known limitations of the human hearing systems possibly as a step towards the development of a vision substitution device for the blind. The application of an invertible (one-to-one) image-to-sound mapping ensures the preservation of visual information. The system implementation involves a pipelined special-purpose computer connected to a standard television camera. A novel design and the use of standard components have made for a low-cost portable prototype conversion system with a power dissipation suitable for battery operation. Computerized sampling of the system output and subsequent calculation of the approximate inverse (sound-to-image) mapping provided the first convincing experimental evidence for the preservation of visual information in sound representations of complicated images.< >
ISSN:0018-9294
1558-2531
DOI:10.1109/10.121642