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Evaluation of Information Presentation Methods for a Wearable Braille Display
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 Title & Authors
Evaluation of Information Presentation Methods for a Wearable Braille Display
Jung, Ki-Hyo; Lee, Min-Jeong; Chang, Joon-Ho; You, Hee-Cheon;
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Objective: The present study evaluated information presentation methods applicable to a wearable Braille display in terms of performance and satisfaction measures. Background: A Braille display wearable at a finger can improve accessibility of information for the blind by presenting information in real time. Method: A Braille display with six pins operated by DC servomotors was developed to simulate four information presentation methods(active, stationary, simultaneous, and sequential methods). An evaluation experiment was conducted with 16 participants(8 normal and 8 blind participants) by using three objective measures(reaction time, RT, unit: sec; recognition time, CT, unit: sec; correct response percentage, CP) and two subjective measures(overall satisfaction, OS; perception easiness, PE) with a 7-point scale. Results: The average RTs and CTs of the active and stationary methods were significantly shorter than those of the simultaneous and sequential methods for the blind participants. Also, the average CPs, OSs, and PEs of the active and sequential methods were significantly higher than those of the stationary and simultaneous methods. Conclusion: The active and sequential methods were preferred to the other methods for the blind. Application: The performance characteristics identified in the present study for the four braille display methods can be utilized to develop an effective wearable Braille display system.
Wearable Braille display;Information presentation method;Performance evaluation;
 Cited by
Amemiya, T., Yamashita, J., Hirota, K. and Hirose, M., "Virtual Leading Blocks for the Deaf-blind: A Real-time Way-finder by Verbal- Nonverbal Hybrid Interface and High-density RFID Tag Space", Proceedings of the 2004 Virtual Reality, Chicago, IL, USA, 2004.

Choi, H. R., Lee, S. W., Jung, K. M., Koo, J. C., Lee, S. I., Choi, H. G., Jeon, J. W. and Nam, J. D., "Tactile Display as a Braille Display for the Visually Disabled", Proceedings of 2004 IEEE/RSJ International Conference on Intelligent Robots and Systems, Sendai, Japan, 2004.

Choi, H., Kim, B., Park, H. and Song, J., "Development of a Braille Display using Piezoelectric Linear Motors", SCIE-ICASE International Joint Conference, Busan, South Korea, 2006.

Johnson, K. J., The roles and functions of cutaneous mechanoreceptor. Neurobiology, 455-461, 2001.

Kim, Y. M. and Ryu, J. H., "Information Display by Wearable Pneumatic Tactile Interface". Proceedings of 2005 HCI international conference, Las Vegas, NV, USA, 2005.

Kyung, K. U., Ahn, M., Kwon, D. S. and Srinivasan, M. A., "Perceptual and Biomechanical Frequency Response of Human Skin: Implication for Design of Tactile Displays", Proceedings of the 1st Joint Eurohaptics Conference and Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems, Pisa, Italy, 2005.

Lai, H. and Chen, Y., A study on the blind's sensory ability. International Journal of Industrial Ergonomics, 36, 565-570, 2006. crossref(new window)

Lass, N. J., Speech and Hearing Science: selected readings. MSS Information Corporation. New York. 1974.

Lee, B., ATM is fear for blind. Hankyoreh Newspaper. Retrieved December 16, 2005 from, 2005.

Minister of Health and Welfare, Summary of Laws related Accommodation Improvements for Disabled, Aged, and Pregnant Population. Rehabilitation Supporting Department in Minister of Health and Welfare, 1999.

Moy, G., Wagner, C. and Fearing, R. S., "A Compliant Tactile Display for Teletaction", Proceedings of 2000 ICRA. IEEE International Conference on Robotics and Automation, Piscataway, NJ, USA, 2000.

Sadato, N., Okada, T., Kubota, K. and Yonekura, Y., Tactile discrimination activates the visual cortex of the recently blind naive to Braille: a functional magnetic resonance imaging study in humans, Neuroscience Letters, 359, 49-52, 2004. crossref(new window)

Son, S., Kyung, K., Yang, G. and Kwon, D., Study of human tactile sensing characteristics using tactile display system, Journal of Control, Automation, and Systems Engineering, 11(5), 451-456, 2005. crossref(new window)

Stevens, J. C., Aging and spatial acuity of touch. Journal of Gerontology, 47(1), 35-40, 1992.

Verrillo, R. T. and Gesheider, G. A., Perception via the Sense of Touch in Tactile Aids for the Hearing Impaired. In Summers, I. R. (Ed). Tactile Aids for the Hearing Impaired. Willey, John & Sons, 1992.