Vision-based continuous Graffiti (TM)-like text entry system

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Erdem I., Erdem M., Atalay V., Cetin A.

OPTICAL ENGINEERING, vol.43, no.3, pp.553-558, 2004 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 43 Issue: 3
  • Publication Date: 2004
  • Doi Number: 10.1117/1.1645257
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.553-558


It is now possible to design real-time, low-cost computer vision systems even in personal computers due to the recent advances in electronics and the computer industry. Due to this reason, it is feasible to develop computer-vision-based human-computer interaction systems. A vision-based continuous Graffiti(TM)-like text entry system is presented. The user sketches characters in a Graffiti(TM)-like alphabet in a continuous manner on a flat surface using a laser pointer. The beam of the laser pointer is tracked on the image sequences captured by a camera, and the corresponding written word is recognized from the extracted trace of the laser beam. (C) 2004 Society of Photo-Optical Instrumentation Engineers.