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ICPR
2002
IEEE

Pen Pressure Features for Writer-Independent On-Line Handwriting Recognition Based on Substroke HMM

13 years 7 months ago
Pen Pressure Features for Writer-Independent On-Line Handwriting Recognition Based on Substroke HMM
This paper discusses the use of pen pressure as a feature in writer-independent on-line handwriting 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 existing feature (velocity vector), a 3-dimensional feature is composed for character recognition. Some techniques of interpolating the pen pressure during the pen-up interval is also proposed for a pre-processing 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
Mitsuru Nakai, Takashi Sudo, Hiroshi Shimodaira, S
Added 14 Jul 2010
Updated 14 Jul 2010
Type Conference
Year 2002
Where ICPR
Authors Mitsuru Nakai, Takashi Sudo, Hiroshi Shimodaira, Shigeki Sagayama
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