A study of the template for detecting contrast in the human visual system
| Project/Area Number |
20530655
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Experimental psychology
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| Research Institution | Iwate University |
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Principal Investigator |
AKUTSU Hiromi Iwate University, 教育学部, 教授 (10374860)
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| Research Collaborator |
KUSANO Tsutomu 東京大学, インテリジェント・モデリング・ラボラトリー, 特任研究員
CHIDA Akira 高砂香料株式会社, 研究員
DENNIS M.Levi University of California Berkeley, School of Optometry, Professor
STANLEY A.Klein University of California Berkeley, School of Optometry, Professor
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Fiscal Year 2010: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 実験系心理学 / 認知科学 / 視覚 / 空間周波数 / パターンの検出 / off-frequency / 空間的重み付け関数 / 視覚情報処理 |
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| Research Abstract |
To understand the mechanisms of contrast detection in human visual system, we investigated the characteristics of the template for detecting contrast patterns. A detection template in the spatial frequency domain was similar to a test pattern when uniform noises were added to the test pattern. When a step function noises were added to a test pattern, the template of observers were skewed to a higher contrast area of the noise frequencies. The effect of learning was limited in changing the shape of the template, and there were individual differences.
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Report
(4 results)
Research Products
(4 results)
