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| Presentation | 2017-11-06 14:30 An experimental study on coded aperture design for digital watermark extraction Hiroki Hamasaki, Kentaro Nakai, Shingo Takeshita, Takeru Maehara (Kagoshima Univ.), Toshiki Sonoda (Kyushu Univ.), Michihiro Mikamo (Kagoshima Univ.), Hiroshi Kawasaki (Kyushu Univ.), Hajime Nagahara (Osaka Univ.), Satoshi Ono (Kagoshima Univ.)  EMM2017-55 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | When extracting a digital watermark from a captured image by a camera and a defocus blur happens,the watermark may not be extracted due to the blur. Therefore, this study attempts to design a coded aperture for extracting digital watermark from defocus blurred images. The proposed method adopts a genetic algorithm to automatically design a coded aperture that preserves frequency components including the watermark. Experimental results showed that the coded aperture designed by the proposed method allowed extracting the watermark in a wider depth range. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | coded aperture / digital watermarking / genetic algorithm / optical simulation / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 282, EMM2017-55, pp. 1-6, Nov. 2017. | |
| Paper # | EMM2017-55 | |
| Date of Issue | 2017-10-30 (EMM) | |
| 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 | EMM2017-55 |
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| Conference Information | |
| Committee | EMM |
| Conference Date | 2017-11-06 - 2017-11-07 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kagoshima Univ. (Inamori Academy) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Multimedia Fusion, Content Processing, Multimedia Retrieval, Digital Watermarking, and Related Topics |
| Paper Information | |
| Registration To | EMM |
| Conference Code | 2017-11-EMM |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An experimental study on coded aperture design for digital watermark extraction |
| Sub Title (in English) | |
| Keyword(1) | coded aperture |
| Keyword(2) | digital watermarking |
| Keyword(3) | genetic algorithm |
| Keyword(4) | optical simulation |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Hiroki Hamasaki |
| 1st Author's Affiliation | Kagoshima University (Kagoshima Univ.) |
| 2nd Author's Name | Kentaro Nakai |
| 2nd Author's Affiliation | Kagoshima University (Kagoshima Univ.) |
| 3rd Author's Name | Shingo Takeshita |
| 3rd Author's Affiliation | Kagoshima University (Kagoshima Univ.) |
| 4th Author's Name | Takeru Maehara |
| 4th Author's Affiliation | Kagoshima University (Kagoshima Univ.) |
| 5th Author's Name | Toshiki Sonoda |
| 5th Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 6th Author's Name | Michihiro Mikamo |
| 6th Author's Affiliation | Kagoshima University (Kagoshima Univ.) |
| 7th Author's Name | Hiroshi Kawasaki |
| 7th Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 8th Author's Name | Hajime Nagahara |
| 8th Author's Affiliation | Osaka University (Osaka Univ.) |
| 9th Author's Name | Satoshi Ono |
| 9th Author's Affiliation | Kagoshima University (Kagoshima Univ.) |
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| Speaker | Author-1 |
| Date Time | 2017-11-06 14:30:00 |
| Presentation Time | 25 minutes |
| Registration for | EMM |
| Paper # | EMM2017-55 |
| Volume (vol) | vol.117 |
| Number (no) | no.282 |
| Page | pp.1-6 |
| #Pages | 6 |
| Date of Issue | 2017-10-30 (EMM) |
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