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| Presentation | 2009-06-11 10:55 Implementation of Data Embedding to Printing Images for Information Retrieving by Cellular Phones with a Camera Takafumi Shono, Mitsuji Muneyasu, Yoshiko Hanada (Kansai Univ.)  SIS2009-3 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recently, several data extraction methods from data embedding printing images by using cellular phones with a camera have been proposed. In this technique, 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 and pin cushion distortion. 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) |
| (in English) | cellular phone / data embedding / perspective transform / deformation correction / gain control / 2-D bar code / LBR / printing image | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 78, SIS2009-3, pp. 13-18, June 2009. | |
| Paper # | SIS2009-3 | |
| Date of Issue | 2009-06-04 (SIS) | |
| 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) | |
| Download PDF | SIS2009-3 |
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| Conference Information | |
| Committee | SIS |
| Conference Date | 2009-06-11 - 2009-06-12 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SIS |
| Conference Code | 2009-06-SIS |
| Language | Japanese |
| 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 |
| Keyword(6) | 2-D bar code |
| Keyword(7) | LBR |
| Keyword(8) | printing image |
| 1st Author's Name | Takafumi Shono |
| 1st Author's Affiliation | Kansai University (Kansai Univ.) |
| 2nd Author's Name | Mitsuji Muneyasu |
| 2nd Author's Affiliation | Kansai University (Kansai Univ.) |
| 3rd Author's Name | Yoshiko Hanada |
| 3rd Author's Affiliation | Kansai University (Kansai Univ.) |
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| Speaker | Author-2 |
| Date Time | 2009-06-11 10:55:00 |
| Presentation Time | 25 minutes |
| Registration for | SIS |
| Paper # | SIS2009-3 |
| Volume (vol) | vol.109 |
| Number (no) | no.78 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2009-06-04 (SIS) |
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