Adaptability of color vision to the decrease of saturation in visual field due to optical and environmental factors

• Project/Area Number: 24760036
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Applied optics/Quantum optical engineering
• Research Institution: Chiba University
• Principal Investigator: MIZOKAMI Yoko 千葉大学, 融合科学研究科(研究院), 准教授 (40436340)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000); Fiscal Year 2014: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000); Fiscal Year 2013: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2012: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
• Keywords: 色覚 / 彩度知覚 / 順応 / 視環境 / 画像 / 視覚心理学 / 視覚心理物理学 / かすみ

Outline of Final Research Achievements

We investigated whether the effect of colorfulness-adaptation is associated with the spatial frequency components and/or the scene recognition of natural images. We also examined whether the colorfulness perception of a scene is stable after adaptation to scenes through an foggy filter. We tested how the colorfulness impression of a test image changed following to adaptation images. Results showed that both spatial frequency components and scene recognition influenced to the adaptation, implying the contribution of mechanisms at the multiple levels of visual processing. The results of colorfulness appearance through foggy filter showed that observers perceived the similar colorfulness to the images even when they looked the images through the optical haze. These suggest that a colorfulness adaptation mechanism works for the saturation change due to optical haze and the colorfulness perception to the scenes is maintained stable under this type of natural change in visual environment.

Research Products

• [Journal Article] 色覚の基礎研究: 適応性と多様性の心理物理 (2014)
  • Author(s): 溝上陽子
  • Journal Title: ヒューマンインタフェース学会誌 Volume: 16 Pages: 247-252
• [Journal Article] 自然画像の空間周波数特性と画像認識が彩度順応に与える影響 (2014)
  • Author(s): 境原 瞬, 溝上 陽子, 矢口 博久
  • Journal Title: Vision Volume: 26 Pages: 27-28
• [Journal Article] 自然画像における空間周波数と彩度順応の関係の検証 (2013)
  • Author(s): 境原 瞬, 溝上 陽子, 矢口 博久
  • Journal Title: 日本色彩学会誌 Volume: 37 Pages: 268-269
  • NAID: 110009612307
• [Presentation] Colorfulness Perception of Natural Images Adjusting to Haze (2015)
  • Author(s): Yuki Takahashi, Yoko Mizokami, and Hirohisa Yaguchi
  • Organizer: The 23rd Symposium of the International Colour Vision Society (ICVS 2015)
  • Place of Presentation: Katahira campus, Tohoku university (宮城県・仙台市)
  • Year and Date: 2015-07-03 – 2015-07-07
• [Presentation] かすみによる彩度知覚の変化 - 彩度マッチングによる検証 - (2014)
  • Author(s): 高橋 有希, 溝上 陽子, 矢口 博久
  • Organizer: 日本色彩学会第２回秋の大会[静岡]’14
  • Place of Presentation: 静岡市清水文化会館 (静岡県・静岡市)
  • Year and Date: 2014-11-15
• [Presentation] Time course of color appearance change on mobile display under illuminance change (2014)
  • Author(s): Hidenori Tanaka, Hirohisa Yaguchi, and Yoko Mizokami
  • Organizer: The 10th Asia-Pacific Conference on Vision (APCV)
  • Place of Presentation: Kagawa International Conference Hall (香川県・高松市)
  • Year and Date: 2014-07-20
• [Presentation] Binocular color perception based on integration of unbalanced monocular color information (2014)
  • Author(s): Takashi Mitsunaga, Yoko Mizokami, and Hirohisa Yaguchi
  • Organizer: The 10th Asia-Pacific Conference on Vision (APCV)
  • Place of Presentation: Kagawa International Conference Hall (香川県・高松市)
  • Year and Date: 2014-07-19
• [Presentation] Relationship between colorfulness adaptation and spatial frequency components in natural image (2012)
  • Author(s): Shun Sakaibara, Yoko Mizokami, Hirohisa Yaguchi
  • Organizer: The 8th Asia-Pacific Conference on Vision (APCV)
  • Place of Presentation: Incheon, Korea
• [Presentation] 自然画像における空間周波数と彩度順応の関係の検証
  • Author(s): 境原 瞬, 溝上 陽子, 矢口 博久
  • Organizer: 日本色彩学会第44回全国大会
  • Place of Presentation: 早稲田大学（東京）
• [Presentation] 自然画像の空間周波数特性と画像認識が彩度順応に与える影響
  • Author(s): 境原 瞬, 溝上 陽子, 矢口 博久
  • Organizer: 日本視覚学会2014年冬季大会
  • Place of Presentation: 工学院大学（東京）
• [Presentation] 視環境に適応する鮮やかさの知覚メカニズム
  • Author(s): 溝上 陽子
  • Organizer: 日本色彩学会 色覚研究会 平成25年度研究発表会
  • Place of Presentation: キャンパス・イノベーションセンター東京
  • Invited
• [Presentation] かすみに対する順応時間が彩度知覚に与える影響
  • Author(s): 高橋 有希, 溝上 陽子, 矢口 博久
  • Organizer: 日本色彩学会第45回全国大会
  • Place of Presentation: 九州大学（福岡）
• [Presentation] Colorfulness adaptation to scenes through optical haze
  • Author(s): Yoko Mizokami, Yukari Iki and Hirohisa Yaguchi
  • Organizer: 12th International Colour Association (AIC) Congress
  • Place of Presentation: Newcastle upon Tyne, UK
• [Presentation] Colorfulness perception adapting to natural scenes
  • Author(s): Yoko Mizokami
  • Organizer: The 8th Asia-Pacific Conference on Vision (APCV)
  • Place of Presentation: Incheon, Korea
  • Invited