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http://dx.doi.org/10.3745/KIPSTB.2009.16-B.3.215

A Study of Virtual Colored Overlay for Dyslexics  

Jang, Young-Gun (청주대학교 IT학부)
Choi, Hoon-Il (청주대학교 IT학부)
Yeon, Che-Yong (청주대학교 IT학부)
Publication Information
The KIPS Transactions:PartB / v.16B, no.3, 2009 , pp. 215-224 More about this Journal
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 existing virtual overlays have some drawbacks which have limited colors and limited control capability over overlapped window by the overlays. Limited colors may prevent optimum color selection and limited control capability can obstruct to transfer keyboard and mouse operation to the overlapped window. In this paper, we implemented an overlay function which controls an overlapped window under the overlay window by using keyboard hooking and tray icon. We propose a method 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 implemented all colors which we can produce colors by using Intuitive Overlays. Test results of the developed virtual overlay show that all mentioned drawbacks of existing virtual overlays were eliminated. Therefore we can employ a result of WRRT to use the developed overlays.
Keywords
Dyslexia; Virtual Colored Overlay; Alpha Value Estimation; Control an Overlapped Window;
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  • Reference
1 Arnold Wilkins, Reading Through Colour, John Wiley & Sons Ltd., 2003
2 최훈일, 장영건, '난독증 학습장애인을 위한 가상 색 오버레이구현과 평가', 제29회 한국정보처리학회 춘계학술발표대회 논문집, 제15권 제1호, pp.171-174, 2008.5
3 Olive Mears, 'Figure/ground, brightness, contrast & reading disabilities', Visible Language, Vol.14, pp.13-29, 1980
4 Smith, L. and Wilkins, A., 'How many colours are necessary to increase the reading speed of children with visual stress? A comparison of two systems', Journal of Research and Reading, 30(3):332-343, Aug., 2007   DOI   ScienceOn
5 Bruce J.W. Evans, Dyslexia & Vision, P81, Whurr Publishers, 2003
6 Marie Line Bosse, Sylviane Valdois and Marie Josephe Tainturier, 'Phonological and visual attentional processing in developmental dyslexia: a French an English Group Study', 6th British Dyslexia Ass. Int. Conf., 2004
7 Helen Irlen, The Irlen Method Colored Overlays and Colored Lenses, http://www.irlen.com, 2006
8 Beverley Steffert, 'Quantitative EEGs of visual dyslexics with coloured glasses under various lighting conditions', 6th British Dyslexia Ass. Int. Conf., 2004
9 Virtual Reading Ruler, http://www.crossboweducation.com/
10 장영건, 박승환, 최훈일, '시각적 정보처리 결함을 완화하는 가상 색 오버레이 구현', 재활복지, 12권 1호, pp.138-159, 2008.4
11 J. F. Blinn, 'Compositing, part 1: Theory', IEEE Computer Graphics & Applications, 14(5):83-87, 1994   DOI   ScienceOn
12 Wilkins AJ et al, Double-masked placebo-controlled trial of precision spectral filters in children who use coloured overlays, Ophthal. Physiol. Opt. 14:365-370, 1994   DOI   ScienceOn
13 Collier's Encyclopedia, Macmillan Educational Company, 1991
14 장영건, '정보기술과 난독증 학습장애', 정보화정책, 12권 2호, pp.13-29, 2005
15 Raid, R.C., Shapley, R. M., 'Spatial structure of cone inputs to receptive fields in primate lateral geniculate nucleus', Nature, Vol.356, pp.716-717, 1992   DOI   ScienceOn
16 John Stein, 'The magnocellular theory of developmental dyslexia', dyslexia, Vol.7, pp.12-36, 2001   DOI
17 Bo Shen, Sethi, I.K., Bhaskaran, V., 'DCT domain alpha blending', ICIP 1998, Vol.1, pp.857-861, Oct., 1998   DOI
18 Irlen, H., 'Successful treatment of learning difficulties', The Annual Convention of the American Psychological Association, Anaheim, California, 1983
19 Color conversion math and formulas, http://www.easyrgb.com/index.php?X=MATH