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| Presentation | 2008-02-22 13:15 A study for caption character pattern extraction Yutaka Katsuyama (FUJITSU LABS.), Bai Hong Liang (FRDC), Hiroaki Takebe, Katsuhito Fujimoto (FUJITSU LABS.)  PRMU2007-239 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | It is effective to use caption text to search a video from many recorded videos. For caption recognition, it needs to detect caption area and duration, to extract caption character patterns, and to recognize them. This paper reports about caption character patterns extraction. After generating average image of caption duration, color clustering is done to extract decomposed binary images. Then, noise is removed by multi-frame information. The most reliable character line is selected by its OCR result. Some key characters are extracted and combinations of characters are made based on them. The most reliable one is selected by result of character recognition and distance between adjacent characters. We evaluated accuracy using character box coordinates for 83 captions in a news video and got 93.3% recall and 91.6% precision rate. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Caption / Charecter Recognition / Color Clustering / Noise Removal / Multi Frame / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 491, PRMU2007-239, pp. 143-148, Feb. 2008. | |
| Paper # | PRMU2007-239 | |
| Date of Issue | 2008-02-14 (PRMU) | |
| 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 | PRMU2007-239 |
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| Conference Information | |
| Committee | PRMU |
| Conference Date | 2008-02-21 - 2008-02-22 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Univ. of Tsukuba |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | PRMU |
| Conference Code | 2008-02-PRMU |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A study for caption character pattern extraction |
| Sub Title (in English) | |
| Keyword(1) | Caption |
| Keyword(2) | Charecter Recognition |
| Keyword(3) | Color Clustering |
| Keyword(4) | Noise Removal |
| Keyword(5) | Multi Frame |
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| Keyword(8) | |
| 1st Author's Name | Yutaka Katsuyama |
| 1st Author's Affiliation | FUJITSU LABORATORIES LTD. (FUJITSU LABS.) |
| 2nd Author's Name | Bai Hong Liang |
| 2nd Author's Affiliation | FUJITSU R&D CENTER CO., LTD. (FRDC) |
| 3rd Author's Name | Hiroaki Takebe |
| 3rd Author's Affiliation | FUJITSU LABORATORIES LTD. (FUJITSU LABS.) |
| 4th Author's Name | Katsuhito Fujimoto |
| 4th Author's Affiliation | FUJITSU LABORATORIES LTD. (FUJITSU LABS.) |
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| Speaker | Author-1 |
| Date Time | 2008-02-22 13:15:00 |
| Presentation Time | 30 minutes |
| Registration for | PRMU |
| Paper # | PRMU2007-239 |
| Volume (vol) | vol.107 |
| Number (no) | no.491 |
| Page | pp.143-148 |
| #Pages | 6 |
| Date of Issue | 2008-02-14 (PRMU) |
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