Character recognition by time-frequency analysis using writing pressure

Tatsuhito Watanabe, Seiichiro Katsura

Research output: Contribution to journalArticle

Abstract

With the development of information and communication technology, personal verification becomes more and more important. In the future ubiquitous society, the development of terminals handling personal information will require personal verification technology. The signature is one of the personal verification methods; however, the number of characters is limited in the case of the signature and therefore false signatures are easily used. Thus, personal identification from handwriting is difficult. This paper proposes a "haptic pen" that extracts the writing pressure, and shows a character recognition method based on time-frequency analyses. Although the figures of characters written by different writers are similar, the differences appear in the time-frequency domain. As a result, it is possible to use the proposed character recognition for personal identification more exactly. Experimental results show the viability of the proposed method.

Original languageEnglish
Pages (from-to)498-504
Number of pages7
JournalElectronics and Communications in Japan
Volume94
Issue number11
DOIs
Publication statusPublished - 2011 Nov

Fingerprint

character recognition
Time-frequency Analysis
Character recognition
Character Recognition
Signature
signatures
handwriting
pens
Handwriting
Information and Communication Technology
Haptics
Viability
viability
Frequency Domain
Time Domain
Figure
communication
Communication
Experimental Results
Character

Keywords

  • character recognition
  • force sensation
  • haptic energy conversion
  • human support system
  • real-world haptics
  • wavelet transformation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications
  • Physics and Astronomy(all)
  • Signal Processing
  • Applied Mathematics

Cite this

Character recognition by time-frequency analysis using writing pressure. / Watanabe, Tatsuhito; Katsura, Seiichiro.

In: Electronics and Communications in Japan, Vol. 94, No. 11, 11.2011, p. 498-504.

Research output: Contribution to journalArticle

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