| Presentation | 2009-06-11 Implementation of Data Embedding to Printing Images for Information Retrieving by Cellular Phones with a Camera Takafumi SHONO, Mitsuji MUNEYASU, Yoshiko HANADA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, several data extraction methods from data embedding printing images by using cellular phones with a camera have been proposed. In these techniques, consideration for geometrical deformation and lens distortion in the data extraction process is essential. This paper proposes new correction algorithm based on line based correction (LBR) and perspective transformation to the scanning of the printing images for reduction of the geometrical deformation by the camera. This method can be applied to both of barrel distortion and pin cushion one. To increase the amount of embedding data, a new data embedding method in which the codes for data embedding are changed according to the embedding data is also proposed and a gain control technique suitable for this method is developed. From experiment results, effectiveness of the proposed method for the color image is shown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | cellular phone / data embedding / perspective transform / deformation correction / gain control |
| Paper # | SIS2009-3 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2009/6/4(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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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) | Implementation of Data Embedding to Printing Images for Information Retrieving by Cellular Phones with a Camera |
| Sub Title (in English) | |
| Keyword(1) | cellular phone |
| Keyword(2) | data embedding |
| Keyword(3) | perspective transform |
| Keyword(4) | deformation correction |
| Keyword(5) | gain control |
| 1st Author's Name | Takafumi SHONO |
| 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 | Yoshiko HANADA |
| 3rd Author's Affiliation | Faculty of Engineering Science, Kansai University |
| Date | 2009-06-11 |
| Paper # | SIS2009-3 |
| Volume (vol) | vol.109 |
| Number (no) | 78 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |