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| Presentation | 2009-01-12 11:15 Optical and Synthetic Focusing Using a Liquid Lens Array Dongha Lee (School of Info. Sce. & Tech., The Univ.), Takafumi Koike (Systems Development Lab., Hitachi,Ltd.), Keita Takahashi (The Univ. of Tokyo.), Takeshi Naemura (School of Info. Sce. & Tech., The Univ.)  PRMU2008-192 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Synthetic focusing methods, superimposing pre-acquired multi-view images onto the post-defined surfaces, intend to simulate cameras with very large apertures and variable focuses. In this paper, we demonstrate a system of synthetic focusing with an increased flexibility. The flexiblity comes from the fact that we can control the optical focuses of the input multi-view images independently. We compactly arraged liquid lens in an 8x8 array, whose focal lengths can be changed independently by electric signals, and located a video camera behind the lens array for capturing multi-view images. We proved that if the optical and synthetic focuses coincide with each other, we can obtain more natural blurring effects on the resulting images. Furthermore, we can also set the optical focuses to multiple levels to increase the depth range of the synthetic focus. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Light field / synthetic aperture photography / IBR / variable-focus lens array / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 374, PRMU2008-192, pp. 19-24, Jan. 2009. | |
| Paper # | PRMU2008-192 | |
| Date of Issue | 2009-01-05 (PRMU) | |
| 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 | PRMU2008-192 |
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| Conference Information | |
| Committee | PRMU |
| Conference Date | 2009-01-12 - 2009-01-12 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | NII |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | PRMU |
| Conference Code | 2009-01-PRMU |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Optical and Synthetic Focusing Using a Liquid Lens Array |
| Sub Title (in English) | |
| Keyword(1) | Light field |
| Keyword(2) | synthetic aperture photography |
| Keyword(3) | IBR |
| Keyword(4) | variable-focus lens array |
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| 1st Author's Name | Dongha Lee |
| 1st Author's Affiliation | The Univeristy of Tokyo (School of Info. Sce. & Tech., The Univ.) |
| 2nd Author's Name | Takafumi Koike |
| 2nd Author's Affiliation | Systems Development Lab., Hitachi,Ltd. (Systems Development Lab., Hitachi,Ltd.) |
| 3rd Author's Name | Keita Takahashi |
| 3rd Author's Affiliation | The Univeristy of Tokyo (The Univ. of Tokyo.) |
| 4th Author's Name | Takeshi Naemura |
| 4th Author's Affiliation | The Univeristy of Tokyo (School of Info. Sce. & Tech., The Univ.) |
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| Speaker | Author-1 |
| Date Time | 2009-01-12 11:15:00 |
| Presentation Time | 30 minutes |
| Registration for | PRMU |
| Paper # | PRMU2008-192 |
| Volume (vol) | vol.108 |
| Number (no) | no.374 |
| Page | pp.19-24 |
| #Pages | 6 |
| Date of Issue | 2009-01-05 (PRMU) |
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