Journal of Life Support Engineering
Online ISSN : 1884-5827
Print ISSN : 1341-9455
ISSN-L : 1341-9455
Direct Linear Transfomation Technique for Non-Contact Eye-Gazing Point Detection
(2nd Report, Improving the Detecting Technique via Two Dimensional Multi Resolution Analysis)
Masafumi ODATsuneshi ISOMURAYukio SEKIGUCHIToshiaki HARA
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2002 Volume 14 Issue 1 Pages 2-7

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Abstract
The Purpose of this study is to detect eye-gazing points during driving a wheelchair through the image sequence analysis of video frames. The performlances can be measured without restrictions of specific devices such as any accessories and sensors, which were put on a body. Images obtained with two video cameras allow the algorithm with two-dimensional multi resolution analysis through wavelet analysis to extract boundaries of right and left irises. Their three-dimensional positions and directions were estimated through direct linear transformation(DLT)technique. The eye-gazing point was evaluated through the relationship between the vertical vector of iris and line-of-sight. Consequently, Some preliminary results were presented to illustrate the detecting error of eye-gazing point.
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