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| Presentation | 2012-03-02 17:25 A New Watermarking Method with Block Diffusion and Biased-Chirp Transformation Kazuo Ohzeki, Yuan-Yu Wei, Mao Kuraki, Yutaka Hirakawa (SIT), Kiyotsugu Sato (CIT)  IT2011-78 ISEC2011-105 WBS2011-79 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The digital watermark has been taken as an element of security. Systematic processing of embedding the difference between the original image value and extended watermark mean value. The robustness of the watermark is improved because the method diffuses systematically embedded information. The embedding uses the linear transformation and the quantization. A Biased-Chirp transformation with asymmetry is used for the linear transformation. An effective embedding of the digital watermark is performed even to the flat part of the image by the asymmetric characteristic of the biased transform. As a result, the embeddable region of watermark can be expanded. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | diffusion / chirp / asymmetric / obfuscation / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 455, ISEC2011-105, pp. 201-206, March 2012. | |
| Paper # | ISEC2011-105 | |
| Date of Issue | 2012-02-23 (IT, ISEC, WBS) | |
| 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 | IT2011-78 ISEC2011-105 WBS2011-79 |
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| Conference Information | |
| Committee | IT ISEC WBS |
| Conference Date | 2012-03-01 - 2012-03-02 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | ISEC |
| Conference Code | 2012-03-IT-ISEC-WBS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A New Watermarking Method with Block Diffusion and Biased-Chirp Transformation |
| Sub Title (in English) | |
| Keyword(1) | diffusion |
| Keyword(2) | chirp |
| Keyword(3) | asymmetric |
| Keyword(4) | obfuscation |
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| 1st Author's Name | Kazuo Ohzeki |
| 1st Author's Affiliation | Shibaura Institute of Technology (SIT) |
| 2nd Author's Name | Yuan-Yu Wei |
| 2nd Author's Affiliation | Shibaura Institute of Technology (SIT) |
| 3rd Author's Name | Mao Kuraki |
| 3rd Author's Affiliation | Shibaura Institute of Technology (SIT) |
| 4th Author's Name | Yutaka Hirakawa |
| 4th Author's Affiliation | Shibaura Institute of Technology (SIT) |
| 5th Author's Name | Kiyotsugu Sato |
| 5th Author's Affiliation | College of Industrial Technology (CIT) |
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| Speaker | Author-1 |
| Date Time | 2012-03-02 17:25:00 |
| Presentation Time | 25 minutes |
| Registration for | ISEC |
| Paper # | IT2011-78, ISEC2011-105, WBS2011-79 |
| Volume (vol) | vol.111 |
| Number (no) | no.454(IT), no.455(ISEC), no.456(WBS) |
| Page | pp.201-206 |
| #Pages | 6 |
| Date of Issue | 2012-02-23 (IT, ISEC, WBS) |
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