| Presentation | 2008-07-14 Geometrical Compensation Methods for the Image Watermarking Scheme and Its Required Accuracy Shouhei KAMIMURA, Masaaki FUJIYOSHI, Hitoshi KIYA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper studies geometrical compensation methods for improving the watermark extraction ability. In a printing-and-scanning process of an image, conditions such as printing resolution, scanning resolution, and paper position to the scanner are all different each time. In general, such a process geometrically transforms a stego image in which watermark is hidden, so the watermark extraction gets difficult. Whereas the conventional approach makes the watermarking method resistant to geometrical transform, this paper proposes a method that improves watermark extraction performance by geometrical compensation utilizing phase-only correlation technique. The sequence of geometrical compensation, scanning conditions, and the required accuracy of geometrical compensation are considered in this paper. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | digital watermarking / printing / geometrical compensation / phase-only correlation / scaling |
| Paper # | IE2008-34,MVE2008-28 |
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| Conference Information | |
| Committee | IE |
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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 | Image Engineering (IE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Geometrical Compensation Methods for the Image Watermarking Scheme and Its Required Accuracy |
| Sub Title (in English) | |
| Keyword(1) | digital watermarking |
| Keyword(2) | printing |
| Keyword(3) | geometrical compensation |
| Keyword(4) | phase-only correlation |
| Keyword(5) | scaling |
| 1st Author's Name | Shouhei KAMIMURA |
| 1st Author's Affiliation | Dept. of Information and Communication Systems Engineering, Tokyo Metropolitan University() |
| 2nd Author's Name | Masaaki FUJIYOSHI |
| 2nd Author's Affiliation | Dept. of Information and Communication Systems Engineering, Tokyo Metropolitan University |
| 3rd Author's Name | Hitoshi KIYA |
| 3rd Author's Affiliation | Dept. of Information and Communication Systems Engineering, Tokyo Metropolitan University |
| Date | 2008-07-14 |
| Paper # | IE2008-34,MVE2008-28 |
| Volume (vol) | vol.108 |
| Number (no) | 127 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |