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Color-to-speech sensory substitution device for the visually impaired

McMorrow, Gabriel and Wang, Xiaojun and Whelan, Paul F. (1997) Color-to-speech sensory substitution device for the visually impaired. In: Machine Vision Applications, Architectures, and Systems Integration VI 1997, 15-16 October 1997, Pittsburgh, USA.

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A hardware device is presented that converts color to speech for use by the blind and visually impaired. The use of audio tones for transferring knowledge of colors identified to individuals was investigated but was discarded in favor of the use of direct speech. A unique color-clustering algorithm was implemented using a hardware description language (VHDL), which in-turn was used to program an Altera Corporation's programmable logic device (PLD). The PLD maps all possible incoming colors into one of 24 color names, and outputs an address to a speech device, which in-turn plays back one of 24 voice recorded color names. To the author's knowledge, there are only two such color to speech systems available on the market. However, both are designed to operate at a distance of less than an inch from the surface whose color is to be checked. The device presented here uses original front-end optics to increase the range of operation from less than an inch to sixteen feet and greater. Because of the increased range of operation, the device can not only be used for color identification, but also as a navigation aid.

Item Type:Conference or Workshop Item (Paper)
Event Type:Conference
Uncontrolled Keywords:computer vision; image analysis; color; sensory substitution; clustering; VHDL; speech;
Subjects:Computer Science > Image processing
DCU Faculties and Centres:Research Initiatives and Centres > Research Institute for Networks and Communications Engineering (RINCE)
Published in:Proceedings of SPIE Volume 3205. . SPIE.
Official URL:
Copyright Information:Copyright 1997 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
ID Code:4667
Deposited On:03 Jul 2009 13:41 by DORAS Administrator. Last Modified 26 Oct 2017 16:48

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