Reverse correlation analysis of chromatic contrast perception based on chromatic mechanism models

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  • 色覚メカニズムモデルに基づく色コントラスト知覚特性の逆相関解析(視聴覚の基礎と応用,マルチモーダル,感性情報処理,一般)
  • 色覚メカニズムモデルに基づく色コントラスト知覚特性の逆相関解析
  • シキカク メカニズムモデル ニ モトズク イロ コントラスト チカク トクセイ ノ ギャクソウカン カイセキ

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Description

Chromatic representations in the visual system beyond the cone-opponent level are still unclear. We applied the classification image (CI) method to examine the effects of heterochromatic noise on perception of chromatic contrast. The obtained data were analyzed by logistic regression on the basis of chromatic mechanism models, not just by the typical CI analysis procedure. The stimulus was a superposition image of two uniformly colored squares at left and right (a signal image) and a multicolored texture (a noise image) whose colors were randomly chosen. Observers judged the relative chromatic contrast of the two signal squares on different noise textures. The model analysis suggested that the cardinal-mechanisms model was enough to explain our experiment data just by adjusting the relative sensitivities between the mechanisms.

Journal

  • ITE Technical Report

    ITE Technical Report 37.55 (0), 13-16, 2013

    The Institute of Image Information and Television Engineers

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