Legibility evaluation with oculomotor analysis : Combination comparison of font color and background color

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  • SAITO Daisuke
    Center for Hyper Media Research, Graduate School of Engineering, Tokyo Polytechnic University:Research Center for Advanced Technologies, Tokyo Denki University
  • SAITO Keiichi
    Research Center for Advanced Technologies, Tokyo Denki University
  • SAITO Masao
    Research Center for Advanced Technologies, Tokyo Denki University
  • AZUMA Yoshihiko
    Center for Hyper Media Research, Graduate School of Engineering, Tokyo Polytechnic University
  • INUI Masao
    Center for Hyper Media Research, Graduate School of Engineering, Tokyo Polytechnic University

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Other Title
  • 眼球運動解析による可読性評価 : 文字色と背景色の組合せによる比較
  • ガンキュウ ウンドウ カイセキ ニ ヨル カドクセイ ヒョウカ モジショク ト ハイケイショク ノ クミアワセ ニ ヨル ヒカク

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Abstract

In the present days, information society has so rapidly extended that not only young people but also the elderly have to use the Internet to exchange and acquire information. One of the most popular internet services is WWW that is typical visual media. Human visual characteristics, however, change due to age-related clouding of the eye lens. Therefore, it is very likely that aged people overlook important information of web sites when the change of human visibility is ignored. In this report, the silent reading time, the gaze duration and the saccade were measured using point-of-regard measurement for evaluating legibility of the Web site. As the results, the silent reading time and the gaze duration were extended and the saccade was shortened, when the contrast between characters and a background decreased. Moreover, when the contrast decreased, a decreasing ratio of legibility in a negative coloration compared with a positive coloration was increased. Therefore, it was shown that the legibility is high when the contrast between characters and background is high, and a positive coloration is effective.

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