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| Presentation | 2014-10-10 14:30 Construction of the optical-flow-sensing visual function using bacteriorhodopsin Katsuyuki Kasai, Yoshihiro Haruyama, Toshiki Yamada, Makoto Akiba, Takahiro Kaji, Yukihiro Tominari, Shukichi Tanaka (NICT), Yoshiko Okada-Shudo (UEC), Akira Otomo (NICT)  OME2014-43 Link to ES Tech. Rep. Archives: OME2014-43 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Bacteriorhodopsin (bR) is a photoreceptor membrane protein extracted from the cell membrane of Halobacterium salinarum which lives in saline lakes. Irradiation of bacteriorhodopsin on the interface of electrodes and the electrolyte generates a time-differential photocurrent, which generates a signal that responds only to changes in the intensity of light without the need for an external power supply. This unique functional response is similar to that seen in retinal neurons. The bR-based bipolar photosensor consists of the bR thin films patterned on two ITO plates and the electrolyte solution. This bipolar photocell functions as a basic unit of edge detection. It is also possible to create bR variants with different photoresponse characteristics through genetic recombination technology, and we can develop photosensors that detect optical flow (the velocity field of objects that move relative to one another) through a combination of these variants with the bipolar structure. The visual information system found in insects has been optimized in the course of evolution to instantaneously perceive information on the movement of objects around the insect, or its own movement, and it uses optical flow as visual information. The insect mimetic sensor, which simulates optical flow detection in insect visual systems, is applicable to control of autonomous moving robots. This paper reports on construction of the optical-flow sensing visual function using the bR bipolar photosensor array with bR-D96N and wild type. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Bacteriorhodopsin / optical flow / photosensor / insect mimetic sensor / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 114, no. 241, OME2014-43, pp. 33-37, Oct. 2014. | |
| Paper # | OME2014-43 | |
| Date of Issue | 2014-10-03 (OME) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | OME2014-43 Link to ES Tech. Rep. Archives: OME2014-43 |
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| Conference Information | |
| Committee | OME |
| Conference Date | 2014-10-10 - 2014-10-10 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka University Nakanoshima Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Organic devices and sensors, etc. |
| Paper Information | |
| Registration To | OME |
| Conference Code | 2014-10-OME |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Construction of the optical-flow-sensing visual function using bacteriorhodopsin |
| Sub Title (in English) | |
| Keyword(1) | Bacteriorhodopsin |
| Keyword(2) | optical flow |
| Keyword(3) | photosensor |
| Keyword(4) | insect mimetic sensor |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Katsuyuki Kasai |
| 1st Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 2nd Author's Name | Yoshihiro Haruyama |
| 2nd Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 3rd Author's Name | Toshiki Yamada |
| 3rd Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 4th Author's Name | Makoto Akiba |
| 4th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 5th Author's Name | Takahiro Kaji |
| 5th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 6th Author's Name | Yukihiro Tominari |
| 6th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 7th Author's Name | Shukichi Tanaka |
| 7th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
| 8th Author's Name | Yoshiko Okada-Shudo |
| 8th Author's Affiliation | The University of Electro-Communications (UEC) |
| 9th Author's Name | Akira Otomo |
| 9th Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
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| Speaker | Author-1 |
| Date Time | 2014-10-10 14:30:00 |
| Presentation Time | 25 minutes |
| Registration for | OME |
| Paper # | OME2014-43 |
| Volume (vol) | vol.114 |
| Number (no) | no.241 |
| Page | pp.33-37 |
| #Pages | 5 |
| Date of Issue | 2014-10-03 (OME) |
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