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| Presentation | 2012-05-23 13:25 Edge blur of approaching object affects time to contact Shouta Yosimura, Nobuyuki Hirose, Shuji Mori (Kyushu Univ.)  HCS2012-30 HIP2012-30 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This study examined effects contour blur of an approaching object on time-to-contact (TTC) estimation. In Experiment 1, we measured estimated TTC of circular stimulus with and without blurred contour. Gaussian filter was used to change gradually the luminance around the contour and manipulated the degree of blur. The results showed that TTC estimation increased with increasing the degree of blur. This led us to hypothesize that perceptual velocity of approaching object decreases with increasing the degree of blur, resulting in larger estimation of TTC. In Experiment 2, we measured the perceptual velocity of blurred stimulus as the matched velocity of non-blurred stimulus and examined the effects of contour blur on perceptual velocity. The results showed that the perceptual velocity slowed down with increasing the degree of contour blur, supporting our hypothesis. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | TTC / Contour / Gauss Filter / Binocular Stereopsis / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 46, HIP2012-30, pp. 217-221, May 2012. | |
| Paper # | HIP2012-30 | |
| Date of Issue | 2012-05-15 (HCS, HIP) | |
| 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 | HCS2012-30 HIP2012-30 |
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| Conference Information | |
| Committee | HCS HIP HI-SIGCOASTER |
| Conference Date | 2012-05-22 - 2012-05-23 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Industry Support Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Communication Enhancing and Human Communications |
| Paper Information | |
| Registration To | HIP |
| Conference Code | 2012-05-HCS-HIP-SIGCE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Edge blur of approaching object affects time to contact |
| Sub Title (in English) | * |
| Keyword(1) | TTC |
| Keyword(2) | Contour |
| Keyword(3) | Gauss Filter |
| Keyword(4) | Binocular Stereopsis |
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| 1st Author's Name | Shouta Yosimura |
| 1st Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 2nd Author's Name | Nobuyuki Hirose |
| 2nd Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 3rd Author's Name | Shuji Mori |
| 3rd Author's Affiliation | Kyushu University (Kyushu Univ.) |
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| Speaker | Author-1 |
| Date Time | 2012-05-23 13:25:00 |
| Presentation Time | 25 minutes |
| Registration for | HIP |
| Paper # | HCS2012-30, HIP2012-30 |
| Volume (vol) | vol.112 |
| Number (no) | no.45(HCS), no.46(HIP) |
| Page | pp.217-221 |
| #Pages | 5 |
| Date of Issue | 2012-05-15 (HCS, HIP) |
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