DOI QR코드

DOI QR Code

Implementation of Mobile Virtual Colored Overlay for People with Scotopic Sensitivity Syndrome

광과민성 증후군자를 위한 태블릿 PC와 스마트폰 용 가상 색 오버레이 구현

  • 장영건 (청주대학교 컴퓨터정보공학과)
  • Received : 2012.10.30
  • Accepted : 2013.01.14
  • Published : 2013.02.28

Abstract

A film colored overlay has been used as an assistive device for dyslexics, Recently, several virtual colored overlays which can be used in computer were developed. But mobile virtual overlay has not been developed yet. In this paper, I implemented a mobile overlay application which is based android operating system and displays a colored overlay of screen all the time while user can freely interact with rest of apps in normal manner by using root window and service. A method is presented to determine the source color of a virtual overlays by estimating alpha value of alpha blending algorithm through measurement of the chromaticity and transmissivity of film overlays and I implemented all colors which are presented by using Intuitive Overlays. Test results of the developed virtual overlay show that all colors of the overlays are almost identical to the colors of Intuitive Overlay by using the chroma meter CS-200A.

색 오버레이는 광과민성 증후군의 증세를 완화시키는 보조도구로 사용되어 왔다. 최근에 컴퓨터에서 사용할 수 있는 몇 종의 가상 색 오버레이가 개발되었으나, 모바일 환경에서 사용할 수 있는 것은 발표된 바 없다. 본 논문에서는 안드로이드의 최상위 윈도우를 활용하여 가상 색 오버레이를 이동시키지 않고 겹쳐진 앱이나 화면을 제어할 수 있는 모바일용 가상 색 오버레이를 구현하였다. 분광측색계를 이용하여 필름 오버레이의 색도 정보와 투과율을 측정하여 가상 색 오버레이에 적용할 색상정보를 추정하는 방법을 제안하였고, Intuitive Overlays에서 표현하는 모든 색상을 구현하였다. 시험 결과 기존의 필름 오버레이를 사용한 것과 동일한 효과를 얻었다.

Keywords

References

  1. Korean Web Content Accessibility Guidelines 2.0, Korean Telecommunication Technology Association, 2009.
  2. Mobile Application Accessibility Guidelines, MOPAS proclamation No.2011-38, Korean Ministry of Public Administration and Security, 2011.
  3. Eric Emerson Schmidt, Chairman of Google "Speed, study Korea", Korea Joonang Daily 2012, 2, 21.
  4. Mears, O. 1980. "Figure/ground, brightness, contrast & reading disabilities". Visible Language, 14, 13-29.
  5. Irlen, H. 1983. "Successful treatment of Learning Disabilities", 1st Annual Convention of the American Psychological Association, Anaheim California.
  6. Young Mi Kim, Hyung Bae Park, Ki Choong Mah, "Survey of the Attention Deficit, Hyperactivity Disorder and Visual Perception in Students who Live in Daejeon city", Korean Journal of Vision Science, 8(1): pp.85-99, 2006.
  7. Virtual Reading Ruler, http://www.crossboweducation.com/
  8. Seung Hwan Park, Hoon Il Choi, Young Gun Jang, "An Implementation of Virtual Colored Overlay to Reduce Visual Information Processing Deficit", Journal of Rehabilitation Research, Vol.12, No.1, pp.138-159, 2008. 4.
  9. Arnold Wilkins, 'Reading Through Colour', John Wiley & Sons Ltd., 2003.
  10. Intuitive overlays dispensing packs, http://www.ioosales.co.uk/html/practice/eye05E.html, 2012.
  11. Color conversion math and formulas, http://www.easyrgb.com/index.php?X=MATH
  12. Ed Burnette, 'Hello, Android: Introducing Google's Mobile Development Platform', 1st Edition, Pragmatic Bookshelf, 2009.