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| Presentation | 2009-12-18 10:15 Accommodative Characteristics and Cues for Images Composed of Many Spatial Frequencies Toshikazu Matsui (Gunma Univ)  HIP2009-109 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This report discusses what cues drive the accommodation mechanism in human vision. The stimuli used in the experiments were still square and sine waves and compound waves composed of the drifting square wave with the spatial frequency of 3 cpd and one of square, sine, and missing fundamental (MF) waves with different spatial frequencies. The accommodative responses were measured using an infrared optometer during paying attention to each image. The following results were obtained: (1) although the accommodation errors for still square waves were the same as those for sine waves in decreasing with an increase in the spatial frequency, they were different in changing with the viewing point; (2) although those for drifting square waves were the same as those for drifting sine waves in decreasing with an increase in the spatial frequency, they were different in decreasing with the drifting speed. These results suggest that spatial features (edges or regions between edges) as well as spatial frequency can be accommodative cues to drive the accommodation mechanism in human vision. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Accommodation / Accommodative cues / Square waves / Compound drifting waves / Viewing point / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 345, HIP2009-109, pp. 73-78, Dec. 2009. | |
| Paper # | HIP2009-109 | |
| Date of Issue | 2009-12-10 (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 | HIP2009-109 |
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| Conference Information | |
| Committee | HIP |
| Conference Date | 2009-12-17 - 2009-12-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | RIEC |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | HIP |
| Conference Code | 2009-12-HIP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Accommodative Characteristics and Cues for Images Composed of Many Spatial Frequencies |
| Sub Title (in English) | |
| Keyword(1) | Accommodation |
| Keyword(2) | Accommodative cues |
| Keyword(3) | Square waves |
| Keyword(4) | Compound drifting waves |
| Keyword(5) | Viewing point |
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| Keyword(8) | |
| 1st Author's Name | Toshikazu Matsui |
| 1st Author's Affiliation | Gunma University (Gunma Univ) |
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| Speaker | Author-1 |
| Date Time | 2009-12-18 10:15:00 |
| Presentation Time | 25 minutes |
| Registration for | HIP |
| Paper # | HIP2009-109 |
| Volume (vol) | vol.109 |
| Number (no) | no.345 |
| Page | pp.73-78 |
| #Pages | 6 |
| Date of Issue | 2009-12-10 (HIP) |
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