輝度画像を用いた視認性評価法―ＬＥＤ表示や３次元物体にも適用可能な汎用的視認性評価法―

DOI Web Site Web Site 被引用文献4件 参考文献15件

書誌事項

タイトル別名
  • Visibility Evaluation Method with Luminance Image
  • キド ガゾウ オ モチイタ シニンセイ ヒョウカホウ LED ヒョウジ ヤ 3ジゲン ブッタイ ニ モ テキヨウ カノウ ナ ハンヨウテキシニンセイ ヒョウカホウ
  • ―LED表示や3次元物体にも適用可能な汎用的視認性評価法―

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抄録

Proposed in this paper is a visibility evaluation method applicable for any complicated situation. It is applicable, if a luminance image with a target is obtained, to any kind of targets, namely both luminous and reflective targets, to any shape of targets, to targets with non-uniform luminance, and to targets with any complicated luminous background. This method is based on the multi-channel model of our visual system and uses an orthogonal wavelet transform with symlet 6 as the mother wavelet. The method can generate a Visibility Evaluation Image from a luminance image with a target, based on the contrast sensitivity functions of various average luminances. VEI illustrates the visual edges of any objects in the luminance image. The value indicated in the VEI can be represented by using multiples of the threshold level and by using the subjective visibility levels. The VEI for a person with a specific visual performance can be generated if his/her contrast sensitivity functions are provided.

収録刊行物

  • 照明学会誌

    照明学会誌 94 (2), 100-107, 2010

    一般社団法人 照明学会

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