| Presentation | 1997/3/18 Character Extraction based on Multiscale Analysis Hidekata HONTANI, Koichiro DEGUCHI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a new character extraction method to extract characters from a gray level images based on multi-scale analysis of the images. This method treats a character as a tigure which looks blob-like globally, while line-like locally. In order to detect these both features of the global and local structures, our method blurs the image with a Gaussian filter, and observes the change of the shape of the image gray-level profile. As the scale of the Gaussian filter increases, the shape of the image gray-level profile changes. At smaller scale, ridge points are observed at the centers of the strokes of the character. At larger scale, all small structures are smoothed out, and an umbilic point may be observed at a center of the character. Based on this observation our method extracts character regions from a gray-level image. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | character extraction / multi-scale analysis / scale-space / characteristic points extraction |
| Paper # | PRMU96-180 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 1997/3/18(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) | Character Extraction based on Multiscale Analysis |
| Sub Title (in English) | |
| Keyword(1) | character extraction |
| Keyword(2) | multi-scale analysis |
| Keyword(3) | scale-space |
| Keyword(4) | characteristic points extraction |
| 1st Author's Name | Hidekata HONTANI |
| 1st Author's Affiliation | University of Tokyo() |
| 2nd Author's Name | Koichiro DEGUCHI |
| 2nd Author's Affiliation | University of Tokyo |
| Date | 1997/3/18 |
| Paper # | PRMU96-180 |
| Volume (vol) | vol.96 |
| Number (no) | 598 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |