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Touch screens have made smartphones more dynamic but less accessible to visually impaired people due to the lack of a physical keyboard. This research aimed to develop a Braille-based text input method using a tactile interface on a touch screen, guided by W3C accessibility guidelines and input from a Braille-literate specialist. The result was BrailleÉcran, an Android app with a 3D-printable tactile interface, a customizable settings panel, and a spoken tutorial. Usability tests with ten volunteers showed a typing speed of 2.52 words per minute and an error rate of 2.68

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BrailleÉcran: A Tangible Braille Approach for Smartphone Text Entry

  • 会议论文

  • 发表日期：

    2025年

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  • Fabrizzio Soares,
  • Joyce Siqueira,
  • Mateus M. Luna,
  • Emilia A. Nogueira,
  • Lillian Cristina dos Santos,
  • Juliana G. Faria,
  • Juliana Paula Felix,
  • Joao Soares de Oliveira Neto,
  • Afonso U. Fonseca,
  • Thamer Horbylon Nascimento

摘要

Touch screens have made smartphones more dynamic but less accessible to visually impaired people due to the lack of a physical keyboard. This research aimed to develop a Braille-based text input method using a tactile interface on a touch screen, guided by W3C accessibility guidelines and input from a Braille-literate specialist. The result was BrailleÉcran, an Android app with a 3D-printable tactile interface, a customizable settings panel, and a spoken tutorial. Usability tests with ten volunteers showed a typing speed of 2.52 words per minute and an error rate of 2.68