| Presentation | 2009-09-24 Information Retrieval from Data Embedded Printing Images Using Correction of Rotational Angles Based on Reference Bits Kenji FRUTA, Mitsuji MUNEYASU, Takafumi SHONO, Yoshiko HANADA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Data extraction methods from data embedding printing images by capturing devices like scanners have attracted much attention. In this technique, consideration for geometrical deformation, especially rotations, in the data extraction process is essential. For this correction, addition of a black frame to the image as the marker has been considered. However it may not be preferable in some case, since the frame may change the impression of images. This paper proposes new correction algorithm without remarkable markers based on the watermarking technique. This method can adopt the relationship between the mark in DFT domain and the rotation of images. By embedding the mark in DFT domain, the rotational angle can be easily obtained. Related to this new embedding marker, the area in DCT domain for embedding the information is investigated. Also an image resize technique suitable for this method is developed. From experiment results, effectiveness of the proposed method is shown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | correction of rotation / DFT / DCT / printing image / data embedding |
| Paper # | SIP2009-47,SIS2009-22 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2009/9/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Smart Info-Media Systems (SIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Information Retrieval from Data Embedded Printing Images Using Correction of Rotational Angles Based on Reference Bits |
| Sub Title (in English) | |
| Keyword(1) | correction of rotation |
| Keyword(2) | DFT |
| Keyword(3) | DCT |
| Keyword(4) | printing image |
| Keyword(5) | data embedding |
| 1st Author's Name | Kenji FRUTA |
| 1st Author's Affiliation | Faculty of Engineering Science, Kansai University() |
| 2nd Author's Name | Mitsuji MUNEYASU |
| 2nd Author's Affiliation | Faculty of Engineering Science, Kansai University |
| 3rd Author's Name | Takafumi SHONO |
| 3rd Author's Affiliation | Faculty of Engineering Science, Kansai University |
| 4th Author's Name | Yoshiko HANADA |
| 4th Author's Affiliation | Faculty of Engineering Science, Kansai University |
| Date | 2009-09-24 |
| Paper # | SIP2009-47,SIS2009-22 |
| Volume (vol) | vol.109 |
| Number (no) | 203 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |