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Optical Engineering

Vision-based continuous GraffitiTM-like text entry system
Author(s): I. Aykut Erdem; M. Erkut Erdem; Volkan Atalay; Ahmet Enis Cetin
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Paper Abstract

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 GraffitiTM-like text entry system is presented. The user sketches characters in a GraffitiTM-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.

Paper Details

Date Published: 1 March 2004
PDF: 6 pages
Opt. Eng. 43(3) doi: 10.1117/1.1645257
Published in: Optical Engineering Volume 43, Issue 3
Show Author Affiliations
I. Aykut Erdem, Middle East Technical Univ. (Turkey)
M. Erkut Erdem, Middle East Technical Univ. (Turkey)
Volkan Atalay, Middle East Technical Univ. (Turkey)
Ahmet Enis Cetin, Bilkent Univ. (Turkey)


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