| Presentation | 2011-03-10 Document Image Binarization to Extract Text Patterns from Low Resolution Color Images Hiroshi Tanaka, Yusaku Fujii, Yoshinobu Hotta, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a text image binarization method which is robust for image resolution. Common text binarization method has two steps, text region extraction step and regional binarization step. Because our system uses Niblack binarization for the second step, it may cause problems such that pixels of narrow strokes are dropped off in low resolution images. We adopt a threshold correction method which can restore dropped pixels and improve the quality of text binary images. Evaluation results of character recognition using 150-600 dpi images show the effectiveness of our method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Binarization / Threshold / OCR / Document Image / Character Recognition / Image Resolution |
| Paper # | PRMU2010-254 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2011/3/3(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 | 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) | Document Image Binarization to Extract Text Patterns from Low Resolution Color Images |
| Sub Title (in English) | |
| Keyword(1) | Binarization |
| Keyword(2) | Threshold |
| Keyword(3) | OCR |
| Keyword(4) | Document Image |
| Keyword(5) | Character Recognition |
| Keyword(6) | Image Resolution |
| 1st Author's Name | Hiroshi Tanaka |
| 1st Author's Affiliation | Fujitsu Laboratories Ltd.() |
| 2nd Author's Name | Yusaku Fujii |
| 2nd Author's Affiliation | Fujitsu Laboratories Ltd. |
| 3rd Author's Name | Yoshinobu Hotta |
| 3rd Author's Affiliation | Fujitsu Laboratories Ltd. |
| Date | 2011-03-10 |
| Paper # | PRMU2010-254 |
| Volume (vol) | vol.110 |
| Number (no) | 467 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |