Qualitative adaptation of subspace method for character recognition

Shinichiro Omachi, Hirotomo Aso

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


A new algorithm based on the subspace method for recognizing poor-quality character images is proposed. In many cases, damage caused by photocopying or facsimile occurs accidentally. It is difficult to solve this kind of damage by statistical methods. We investigate how distribution of data changes because of blurring. Then the eigenvectors and eigenvalues that are used in the subspace method and multiple similarity method are modified according to the change. The effectiveness of the proposed algorithm is shown by the experimental results.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalSystems and Computers in Japan
Issue number12
Publication statusPublished - 2000 Nov 15

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Information Systems
  • Hardware and Architecture
  • Computational Theory and Mathematics


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