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Journal of Deaf Studies and Deaf Education Advance Access originally published online on July 6, 2005
The Journal of Deaf Studies and Deaf Education 2005 10(4):390-401; doi:10.1093/deafed/eni037
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© The Author 2005. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oupjournals.org

Empirical Articles

Perception of Sign Language and Its Application to Visual Communications for Deaf People

Laura J. Muir and Iain E. G. Richardson

Image Communication Technology Group, The Robert Gordon University, Aberdeen, United Kingdom

Video communication systems for deaf people are limited in terms of quality and performance. Analysis of visual attention mechanisms for sign language may enable optimization of video coding systems for deaf users. Eye-movement tracking experiments were conducted with profoundly deaf volunteers while watching sign language video clips. Deaf people are found to fixate mostly on the facial region of the signer to pick up small detailed movements associated with facial expression and mouth shapes. Lower resolution, peripheral vision is used to process information from larger, rapid movements of the signer in the video clips. A coding scheme that gives priority to the face of the signer may be applied to improve perception of video quality for sign language communication.

Correspondence should be sent to Laura J. Muir or Iain E. G. Richardson, Image Communication Technology Group, The Robert Gordon University, Schoolhill, Aberdeen, United Kingdom (e-mail: l.muir{at}rgu.ac.uk or i.g.richardson{at}rgu.ac.uk).

Received May 18, 2004; revised November 1, 2004; accepted March 14, 2005


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