| Presentation | 1993/11/12 A Threshold Selection Method for Caracter Images in a Document Ichiro Nakao, Satoshi Emura, Saki Takakura, Mariko Takenouchi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Most of Character recognition methods for a document image is applied for binarized images.However,a more effective method is to input a document in gray scale and to select the optimal threshold for individual character areas in the document,thereby improving the precison of character recognition In this paper,we propose a method that selects the threshold for individual character areas by repeating binarization and extraction of character areas from a gray scale document image,and show that this method improves the quality of binarized character images and the precision of character recognition.Furthermore we propose the method to select the threshold for character images by estimating the black pixel ratio of original character fonts,and evaluate by character recognition ratio. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | character recognition / binalization / theshold / character image / document |
| Paper # | AI93-64,PRU93-81 |
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| Conference Information | |
| Committee | AI |
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| Conference Date | 1993/11/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Artificial Intelligence and Knowledge-Based Processing (AI) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Threshold Selection Method for Caracter Images in a Document |
| Sub Title (in English) | |
| Keyword(1) | character recognition |
| Keyword(2) | binalization |
| Keyword(3) | theshold |
| Keyword(4) | character image |
| Keyword(5) | document |
| 1st Author's Name | Ichiro Nakao |
| 1st Author's Affiliation | Matsushita Electric Industrial Co.,Ltd.() |
| 2nd Author's Name | Satoshi Emura |
| 2nd Author's Affiliation | Matsushita Electric Industrial Co.,Ltd. |
| 3rd Author's Name | Saki Takakura |
| 3rd Author's Affiliation | Matsushita Electric Industrial Co.,Ltd. |
| 4th Author's Name | Mariko Takenouchi |
| 4th Author's Affiliation | Matsushita Electric Industrial Co.,Ltd. |
| Date | 1993/11/12 |
| Paper # | AI93-64,PRU93-81 |
| Volume (vol) | vol.93 |
| Number (no) | 317 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |