2017 Fiscal Year Final Research Report
Protein-based visual receptive fields for image processing
| Project/Area Number |
15K00226
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Perceptual information processing
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| Research Institution | The University of Electro-Communications |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
KASAI Katsuyuki 情報通信研究機構, 主任研究員 (90359084)
WARANABE Masayoshi 電気通信大学, 大学院情報理工学研究科, 教授 (00175697)
TANAKA Kazuo 電気通信大学, 大学院情報理工学研究科, 教授 (00227125)
TAKAHASHI Hiroki 電気通信大学, 大学院情報理工学研究科, 准教授 (80262286)
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| Research Collaborator |
TANABE Tokimasa
MUKAI Takayuki
OSAWA Shuhei
FUKAZAWA Hikaru
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 光合成タンパク質 / バクテリオロドプシン / 網膜神経節細胞 / 一次視覚野単純細胞 / 受容野 / 空間フィルタリング |
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| Outline of Final Research Achievements |
The limited range in which the visual system neurons respond is called a receptive field and is composed of an excitation area and a suppression area showing a potential response of different polarity to the light stimulus. In this study, a photosynthetic protein, bacteriorhodopsin was used as it was, spatial filters that mimic only the structure of receptive fields were prepared and applied to analog image processing. The positive and negative polarity reversal differential responses exhibited by the electrochemical cell are replaced with excitation and repression response of the receptive field, and the element is realized by a very simple method of selectively patterning on the opposite transparent electrode and covering with the mask pattern. Using these image processing elements, real-time image feature detection and comparison with an animal 's electrophysiological response were demonstrated.
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| Free Research Field |
知覚情報処理
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