| Presentation | 2001/12/14 On-line Handwritten Character Recognition Based on Substroke-HMM with Writing Pressure Features Takashi SUDO, Mitsuru NAKAI, Hiroshi SHIMODAIRA, Shigeki SAGAYAMA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper discusses the use of pen pressure as a feature in writer-independent on-line hand-written character recognition. We propose two kinds of features related to pen pressure: one is the pressure representing pen ups and downs in a continuous manner the other is the time-derivative of the pressure representing the temporal pattern of the pen pressure. Combining either of them with the exisiting feature (velocity vector), a three-dimensional feature is composed for character recognition. Some techniques of interpolating the pen pressure during the pen-up interval is also proposed for a preprocessing purpose. Through experimental evaluation using 1, 016 elementary Kanji characters compared with the baseline performance using velocity vector only, the additional use of pen pressure improved the performance from 96.90% to 97.77% for careful writing and from 90.30% to 92.37% for scribbles. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | on-line handwritten character recognition / stroke HMM / writer independent / writing pressure / cursive writings |
| Paper # | PRMU2001-189 |
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| Conference Information | |
| Committee | PRMU |
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| Conference Date | 2001/12/14(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) | On-line Handwritten Character Recognition Based on Substroke-HMM with Writing Pressure Features |
| Sub Title (in English) | |
| Keyword(1) | on-line handwritten character recognition |
| Keyword(2) | stroke HMM |
| Keyword(3) | writer independent |
| Keyword(4) | writing pressure |
| Keyword(5) | cursive writings |
| 1st Author's Name | Takashi SUDO |
| 1st Author's Affiliation | School of Information Science, Japan Advanced Institute of Science and Technology() |
| 2nd Author's Name | Mitsuru NAKAI |
| 2nd Author's Affiliation | School of Information Science, Japan Advanced Institute of Science and Technology |
| 3rd Author's Name | Hiroshi SHIMODAIRA |
| 3rd Author's Affiliation | School of Information Science, Japan Advanced Institute of Science and Technology |
| 4th Author's Name | Shigeki SAGAYAMA |
| 4th Author's Affiliation | Graduate School of Information Science and Technology, University of Tokyo:School of Information Science, Japan Advanced Institute of Science and Technology |
| Date | 2001/12/14 |
| Paper # | PRMU2001-189 |
| Volume (vol) | vol.101 |
| Number (no) | 525 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |