| Presentation | 2008-07-14 Object-Base Watermarking Robust to Non-Linear Geometrical Image Distortion Attacks and Its WEB Application Toshihiko YAMASAKI, Yasumasa NAKAI, Kiyoharu AIZAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper presents a watermarking technique that is robust to non-linear geometrical distortion attacks. Embedding watermark is based on discrete cosine transform (DCT) coefficients manipulation developed in our previous work. The locations to embed the watermark information are memorized in the local coordinates that are defined relatively to scale-invariant-feature-transform (SIFT) feature points. One embedded block is referred from multiple SIFT feature points. As a result, it is possible to extract the embedded information robustly even with non-linear geometrical distortion such as waving, swirling, and so on. In addition, the proposed algorithm is also robust to non-linear resizing such as seam carving, which was developed to resize the image without degrading the human perception. Experimental results demonstrate that the average number of detected bits with 64-bit embedding can be improved from 38bits to 54bits. A WEB-base application so that anyone can use and evaluate our watermark is also presented. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Watermarking / object-base / SIFT / non-linear geometrical image distortion |
| Paper # | IE2008-33,MVE2008-27 |
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| Conference Information | |
| Committee | MVE |
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| Conference Date | 2008/7/7(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Media Experience and Virtual Environment (MVE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Object-Base Watermarking Robust to Non-Linear Geometrical Image Distortion Attacks and Its WEB Application |
| Sub Title (in English) | |
| Keyword(1) | Watermarking |
| Keyword(2) | object-base |
| Keyword(3) | SIFT |
| Keyword(4) | non-linear geometrical image distortion |
| 1st Author's Name | Toshihiko YAMASAKI |
| 1st Author's Affiliation | Department of Information Science and Technology, University of Tokyo() |
| 2nd Author's Name | Yasumasa NAKAI |
| 2nd Author's Affiliation | Department of Information Science and Technology, University of Tokyo |
| 3rd Author's Name | Kiyoharu AIZAWA |
| 3rd Author's Affiliation | Department of Information Science and Technology, University of Tokyo |
| Date | 2008-07-14 |
| Paper # | IE2008-33,MVE2008-27 |
| Volume (vol) | vol.108 |
| Number (no) | 128 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |