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| Presentation | 2009-09-30 11:15 Analysis of QIM-Based Audio Watermarking Using LDPC Codes Kenichiro Ashiba, Raul Martinez-Noriega (Univ. of Electro-Commu.), Mariko Nakano (National Polytechnic Institute), Brian Kurkoski, Kazuhiko Yamaguchi, Kingo Kobayashi (Univ. of Electro-Commu.)  IT2009-40 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this paper, we analyze audio watermarking methods based on quantization index modulation and low-density parity-check (LDPC) codes. We found that dither modu-lation (DM) can achieve better performance using half-rate Margulis LDPC code even better than some low-rate codes. Then, we propose a scheme based on LDPC codes and DM with distortion-compensation (DC) property which has a robustness benefit of 6 dB versus uncoded case, 2 dB versus algebraic codes, 1 dB versus DM with LDPC code. In DM with DC property, we show that it is possible to achieve .5 dB better robustness using a scale parameter α lower than the theoretically optimal and LDPC codes. Finally our proposal was evaluated against more practical attacks. These results show that our scheme could be a good option for robust watermarks. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | watermark / LDPCcode / sofr-infoｒmation / QIM / DC-DM / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 212, IT2009-40, pp. 43-47, Sept. 2009. | |
| Paper # | IT2009-40 | |
| Date of Issue | 2009-09-22 (IT) | |
| 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 | IT2009-40 |
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| Conference Information | |
| Committee | IT |
| Conference Date | 2009-09-29 - 2009-09-30 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Sophia Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | LDPC codes, general |
| Paper Information | |
| Registration To | IT |
| Conference Code | 2009-09-IT |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Analysis of QIM-Based Audio Watermarking Using LDPC Codes |
| Sub Title (in English) | |
| Keyword(1) | watermark |
| Keyword(2) | LDPCcode |
| Keyword(3) | sofr-infoｒmation |
| Keyword(4) | QIM |
| Keyword(5) | DC-DM |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kenichiro Ashiba |
| 1st Author's Affiliation | The University of Electro Communication (Univ. of Electro-Commu.) |
| 2nd Author's Name | Raul Martinez-Noriega |
| 2nd Author's Affiliation | The University of Electro Communication (Univ. of Electro-Commu.) |
| 3rd Author's Name | Mariko Nakano |
| 3rd Author's Affiliation | National Polytechnic Institute (National Polytechnic Institute) |
| 4th Author's Name | Brian Kurkoski |
| 4th Author's Affiliation | The University of Electro Communication (Univ. of Electro-Commu.) |
| 5th Author's Name | Kazuhiko Yamaguchi |
| 5th Author's Affiliation | The University of Electro Communication (Univ. of Electro-Commu.) |
| 6th Author's Name | Kingo Kobayashi |
| 6th Author's Affiliation | The University of Electro Communication (Univ. of Electro-Commu.) |
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| Speaker | Author-1 |
| Date Time | 2009-09-30 11:15:00 |
| Presentation Time | 25 minutes |
| Registration for | IT |
| Paper # | IT2009-40 |
| Volume (vol) | vol.109 |
| Number (no) | no.212 |
| Page | pp.43-47 |
| #Pages | 5 |
| Date of Issue | 2009-09-22 (IT) |
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