- Volume 43 Issue 11
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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
- Received : 2016.05.20
- Accepted : 2016.08.04
- Published : 2016.11.15
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.
- S. E. Park, S. Y. Moon, H. S. Yoon, D. C. Shin, and H. S. Jeong, "Input Method for Hangul Character and Implementation for Personal Digital Assistant," Proc. of Fall Conference of KIISE, Vol. 21, No. 2, pp. 657-660, 1994. (in Korean)
- W. H. Choi, S. C. Kim, and K. R. Song, "Apparatus and Method for Inputting the Korean Alphabet Based on the Character-Generative Principles of HUNMINJUNGEUM," Patent No. 1999-052648, 1999. (in Korean)
- J. W. Kim, "Apparatus for Inputting Key and Method for Inputting Character by Direction Key," Patent No. 2001-0006208, 2001. (in Korean)
- T. J. Eom, J. B. Lee, and B. K. Kim, "Design of Smart Phone-Based Braille Keyboard System for Visually Impaired People," Journal of Information Security, Vol. 12, No. 1, pp. 63-70, 2012. (in Korean)
- Y. C. Byun, "2011 Survey on Impaired People," Research Report 2011-82, 2012.
- H. Y. Kim, Gesture Recognition Interface by Keyboard Insertion IR Module, Master Thesis, KAIST, 2011. (in Korean)
- D. H. Kim, Y. H. Kwon, and J. H. Kim, "A Hangul Input Interface Using Continuous Gestures and Language Models," Proc. of KCC2005, pp. 586-588, 2005. (in Korean)
- K. Kim and B. Y. Jeong, "Classification of Korean Characters and Frequency of Continual Characters Classification of Korean characters(alphabets) and frequency," Journal of Korea Human Engineering, Vol. 21, No. 2, pp. 1-11, 2002. (in Korean)
- K. Kim, "Standardization of Korean Input Keypad of Mobile Phones," Journal of Consumer Problem Research, Vol. 39, pp. 75-87, 2011. (in Korean)
- http://www.inprisltd.com/, The UpSense Super Invisible Keyboard, 2012.
- Daegu University DKEL Team, "Korean Keyboard App Development for Visually Impaired People," Kyungbook Daily News, 2014. (in Korean)
- H. K. Min, Research on App S/W Usage for Smart Devices by Impaired Students, Research Report, Center for National Special Education, 2011.
- S. M. Kim, N. H. Kim, W. S. Byun, J. H. Choi, and T. S. Kim, "Soft Keyboard application for reducing the mis-typing ratio in the smartphones," Proc. of Fall Conference of KIISE, Vol.38, No.2, pp.89-92, 2011. (in Korean)
- S. Kane, J. Bigham, J. Wobbrock, "Slide Rule: Making Mobile Touch Screens Accessible to Blind People using Multi-touch Interaction Techniques," Proc. of 10th international ACM SIGACCESS conference on Computers and accessibility, pp. 73-80, 2008.
- T. Guerreiro, P. Lagoa, D. Goncalves, and J Jorge, "From Tapping to Touching: Making Touch Screens Accessible to Blind Users," IEEE MultiMedia, Vol. 15, pp. 48-50, 2008. https://doi.org/10.1109/MMUL.2008.88