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Finger-Touch based Hangul Input Interface for Usability Enhancement among Visually Impaired Individuals

시각 장애인의 입력 편의성 향상을 위한 손가락 터치 기반의 한글 입력 인터페이스

  • 강승식 (국민대학교 컴퓨터공학부) ;
  • 최윤승 (국민대학교 컴퓨터공학부)
  • Received : 2016.05.20
  • Accepted : 2016.08.04
  • Published : 2016.11.15

Abstract

Virtual Hangul keyboards like Chun-Ji-In, Narat-Gul, and QWERTY are based on eyesight recognition, in which input letter positions are fixed in the smartphone environment. The input method of a fixed-position style is not very convenient for visually impaired individuals. In order to resolve the issue of inconvenience of the Hangul input system, we propose a new paradigm of the finger-touch based Hangul input system that does not need eyesight recognition of input buttons. For the convenience of learning the touch-motion based keyboard, finger touches are designed by considering the shape and frequencies of Hangul vowels and consonants together with the preference of fingers. The base position is decided by the first touch of the screen, and the finger-touch keyboard is used in the same way for all the other touch-style devices, regardless of the differences in size and operation system. In this input method, unique finger-touch motions are assigned for Hangul letters that significantly reduce the input errors.

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