Paper Abstract and Keywords |
Presentation |
2017-03-06 14:30
[Poster Presentation]
Consideration of watermarking method introduced KAZE features Yuka Fukada, Masaki Kawamura (Yamaguchi Univ.) EMM2016-86 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We evaluate robustness of a digital watermarking method using KAZE features. Watermarks need to be extracted from distorted images. The attacks to images include geometric transforms, e.g., scaling and rotation. Watermarked regions in an image are relocated by the transforms. Therefore, invariant feature detectors are introduced. The watermarked regions are selected based on invariant feature points. The SIFT feature detector, that is one of the major detectors, uses Gaussian filter as a smoothing filter. Since details of the features are isotropically smoothed by the Gaussian filter, edges of the features become blurred and then these points cannot be detected as feature points. We propose a watermarking method using KAZE features, which uses nonlinear diffusion filter as anisotropically smoothing. Watermarked regions are located around the KAZE feature points, and then the watermarks are embedded in the DCT coefficients of the regions by using QIM. We evaluated the method by peak signal-to-noise ratio and bit error rate. As results, the proposed method could generate stego-images with small distortion. Moreover, the watermarks could be extracted without errors from images compressed by JPEG when at least 18 feature points were detected in the clipped images. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
digital watermarking / KAZE / geometric transform / clipping / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 116, no. 501, EMM2016-86, pp. 1-6, March 2017. |
Paper # |
EMM2016-86 |
Date of Issue |
2017-02-27 (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) |
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EMM2016-86 |
Conference Information |
Committee |
EMM |
Conference Date |
2017-03-06 - 2017-03-07 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Miyakojima Marin Terminal Building (Okinawa) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Image and Sound Quality, Metrics for Perception and Recognition, Human Auditory and Visual System, etc. |
Paper Information |
Registration To |
EMM |
Conference Code |
2017-03-EMM |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Consideration of watermarking method introduced KAZE features |
Sub Title (in English) |
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digital watermarking |
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KAZE |
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geometric transform |
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clipping |
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1st Author's Name |
Yuka Fukada |
1st Author's Affiliation |
Yamaguchi University (Yamaguchi Univ.) |
2nd Author's Name |
Masaki Kawamura |
2nd Author's Affiliation |
Yamaguchi University (Yamaguchi Univ.) |
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Speaker |
Author-1 |
Date Time |
2017-03-06 14:30:00 |
Presentation Time |
60 minutes |
Registration for |
EMM |
Paper # |
EMM2016-86 |
Volume (vol) |
vol.116 |
Number (no) |
no.501 |
Page |
pp.1-6 |
#Pages |
6 |
Date of Issue |
2017-02-27 (EMM) |
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