A method using uniform yellowing pigmentation to model the color perception of the elderly people
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As the usage of color images in presenting information via Web sites and smartphone applications increases, the color perception loss may affect the accuracy of the information when it is presented to elderly people. The earlier study considered non-uniform yellowing pigmentation model to mimic the color perception loss of elderly people. Recently, two clinical studies have shown that uniform yellowing pigmentation occurs on the human crystalline lens. In this paper, we propose a mathematical model using uniform yellowing pigmentation to mimic the color perception experienced by elderly people. The uniform yellowing pigmentation is formed using the measured transmittance functions of the LCD display and the spectral transmission factor. The uniform yellowing pigmentation formed is in agreement with the results of the clinical studies. Moreover, subjective evaluation showed that the results from the proposed method are closer to the clinical data and showed improvement when compared to the results from the non-uniform yellowing pigmentation method.
KeywordsUniform yellowing pigmentation Elderly color perception Color image Elderly people
We are deeply thankful to our volunteers. We would also like to thank the anonymous reviewers for their valuable comments and suggestions.
- 3.Fairchild, M.D.: Color appearance models. Wiley, London (2005)Google Scholar
- 5.Gibson, J.E., Fairchild, M.D.: Colorimetric characterization of three computer displays (LCD and CRT). Munsell Color Science Laboratory Technical Report (2000)Google Scholar
- 7.Hassan, M.F., Kugimiya, T., Tanaka, Y., Tanaka, K., Paramesran, R.: Comparative analysis of the color perception loss for elderly people. In: Asia-Pacific Signal and Information Processing Association (APSIPA) Annual Summit and Conference, pp. 1176–1181 (2015)Google Scholar
- 9.Mohadis, H.M., Ali, N.M.: A study of smartphone usage and barriers among the elderly. In: 3rd International Conference on User Science and Engineering (i-USer), pp. 109–114 (2014)Google Scholar
- 17.Said, F.S., Weale, R.A.: The variation with age of the spectral transmissivity of the living human crystalline lens. Gerontologia 3(37), 213–231 (1959)Google Scholar
- 22.Tanaka, Y., Tanaka, K., Yokoyama, S., Nakamura, H., Ichikawa, K., Tanabe, S.: An improved simulation method of color perception by elderly people based on measured luminescence spectrum and color constancy relaxation. J. Inst. Image Electr. Eng. Jpn. 40(1), 86–95 (2011)Google Scholar
- 26.Winn, B., Whitaker, D., Elliott, D.B., Phillips, N.J.: Factors affecting light-adapted pupil size in normal human subjects. Investig. Ophthalmol. Vis. Sci. 35(3), 1132–1137 (1994)Google Scholar