Abstract
Approximately 80% of the visually impaired are composed of individuals with low vision. As people with low vision have residual visual acuity, light guidance has been deemed effective. Thus, the authors have developed a light-emitting block that is placed at the entrance to a pedestrian crosswalk to support the visually impaired at night. Generally, blinking light is accepted as a method to selectively distinguish a target light source from an ambient light source. However, on/off blinking lights, such as those used at a road construction site at night, are unsuitable for normal road environments. Therefore, the authors focused on fade-in/fade-out blinking, which gradually brightened and darkened, suppressing inappropriate visual stimulation. Therefore, this study aimed to search for blinking cycles and patterns that ensured visibility while suppressing light stimulation and reducing discomfort.
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References
Stoelzel, C.R., Huff, J.M., Bereshpolova, Y., Zhuang, J., Hei, X., Alonso, J.-M., Harvey, A.: Hour-long adaptation in the awake early visual system. J. Neurophysiol. 114(2), 1172–1182 (2015)
Abolafia, J.M., Vergara, R., Arnold, M.M., Reig, R., Sanchez-Vives, M.V.: Cortical auditory adaptation in the awake rat and the role of potassium currents. Cereb Cortex 21(5), 977–990 (2011)
Keller, A.J., et al.: Stimulus relevance modulates contrast adaptation in visual cortex. eLife 6, e21589, 1–12 (2017)
Ikeda, N., Takahashi, K., Yamamoto, G., Kimura, Y., Ito, S., Sato, K., Fujisawa, S.: Verification of LED blocks used at crosswalk entrances for persons with visually impairment. Assistive Technol. Res. Ser. 33, 982–987 (2013)
Ikeda, N., et al.: Visibility of LED blocks mounted on crosswalk boundaries for low visual capacity, assistive technology. Stud. Health Technol. Inf. (Stud. Health Tech. Informat.) 217, 512–517 (2015)
Nagahama, H., et al.: Proof experiment of LED block equipped with projections to locate travel direction for blind and vision impaired persons. In: Proceedings of the AHFE2016 International Conference on Human Factors in Transportation, pp. 159–169, Orlando, July 2016
Okada, T., et al.: Research on blinking-luminescence travel support for visually impaired persons. In: Proceedings of the AHFE 2017 International Conference on Human Factors in Transportation, Los Angeles, pp. 319–324, July 2017
Acknowledgments
This research is being carried out with the support of JSPS Grant-in-Aid for Scientific Research (C) (General) 20K12736. We would like to express our gratitude here.
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Fujisawa, S. et al. (2021). Visual Guidance by Blinking Light of LED Block for Individuals Affected with Low Vision. In: Ahram, T.Z., Falcão, C.S. (eds) Advances in Usability, User Experience, Wearable and Assistive Technology. AHFE 2021. Lecture Notes in Networks and Systems, vol 275. Springer, Cham. https://doi.org/10.1007/978-3-030-80091-8_50
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DOI: https://doi.org/10.1007/978-3-030-80091-8_50
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