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| Presentation | 2011-10-19 11:10 A computational model of speed tuned motion detectors in early visual cortex Yukinari Toyota, Akitoshi Hanazawa (Kyutech)  NC2011-47 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Motion detection is an important task for computer vision. Motion detection is also an important task for animals. The underlying neural mechanism of motion detection was thoroughly investigated and some aspects of the mechanism were revealed. If we can use such mechanisms for computer vision, it can be expected to achieve more robust and accurate motion detection, not only the computational understanding of human vision system. In this paper, we propose a model of speed-tuned motion detectors based on previously reported observation of early visual cortex and simple motion detectors. To generate speed selectivity, we combined output of multiple motion detectors and each detector was tuned to a spatiotemporal frequency independently. In experiments, using sine wave gratings and bar stimulas, the slant of spectral receptive field and speed selectivity are confirmed. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Direction selectivity / Speed tuning / Spectral receptive field / Visual cortex / Motion detection model / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 241, NC2011-47, pp. 11-16, Oct. 2011. | |
| Paper # | NC2011-47 | |
| Date of Issue | 2011-10-12 (NC) | |
| 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 | NC2011-47 |
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| Conference Information | |
| Committee | NC |
| Conference Date | 2011-10-19 - 2011-10-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Ohashi Campus, Kyushu Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Implementation of neurocomputing, modeling for human science, and general |
| Paper Information | |
| Registration To | NC |
| Conference Code | 2011-10-NC |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A computational model of speed tuned motion detectors in early visual cortex |
| Sub Title (in English) | |
| Keyword(1) | Direction selectivity |
| Keyword(2) | Speed tuning |
| Keyword(3) | Spectral receptive field |
| Keyword(4) | Visual cortex |
| Keyword(5) | Motion detection model |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Yukinari Toyota |
| 1st Author's Affiliation | Kyushu Institute of Technology (Kyutech) |
| 2nd Author's Name | Akitoshi Hanazawa |
| 2nd Author's Affiliation | Kyushu Institute of Technology (Kyutech) |
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| Speaker | Author-1 |
| Date Time | 2011-10-19 11:10:00 |
| Presentation Time | 25 minutes |
| Registration for | NC |
| Paper # | NC2011-47 |
| Volume (vol) | vol.111 |
| Number (no) | no.241 |
| Page | pp.11-16 |
| #Pages | 6 |
| Date of Issue | 2011-10-12 (NC) |
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