| Presentation | 2008-02-22 A Study for Caption Character Pattern Extraction Yutaka KATSUYAMA, Hongliang BAI, Hiroaki TAKEBE, Katsuhito FUJIMOTO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | Caption / Character Recognition / Color Clustering / Noise Removal / Multi Frame |
| Paper # | PRMU2007-239 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2008/2/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
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| Paper Information | |
| Registration To | Pattern Recognition and Media Understanding (PRMU) |
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| Language | JPN |
| 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) | Character Recognition |
| Keyword(3) | Color Clustering |
| Keyword(4) | Noise Removal |
| Keyword(5) | Multi Frame |
| 1st Author's Name | Yutaka KATSUYAMA |
| 1st Author's Affiliation | Software and Solution Laboratories, Language & Media Laboratory, FUJITSU LABORATORIES LTD.() |
| 2nd Author's Name | Hongliang BAI |
| 2nd Author's Affiliation | Fujitsu Research and Development Center Co., Ltd. |
| 3rd Author's Name | Hiroaki TAKEBE |
| 3rd Author's Affiliation | Software and Solution Laboratories, Language & Media Laboratory, FUJITSU LABORATORIES LTD. |
| 4th Author's Name | Katsuhito FUJIMOTO |
| 4th Author's Affiliation | Software and Solution Laboratories, Language & Media Laboratory, FUJITSU LABORATORIES LTD. |
| Date | 2008-02-22 |
| Paper # | PRMU2007-239 |
| Volume (vol) | vol.107 |
| Number (no) | 491 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |