2024-03-29T11:22:19Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:00002713
2022-12-15T03:35:56Z
453:454
518:519:520
Direct Linear Transfomation Technique for Non-Contact Eye-Gazing Point Detection
Direct Linear Transformation法を利用した車椅子移動時の非接触視点位置検出法の検討
Direct Linear Transformation法を利用した車椅子移動時の非接触視点位置検出法の検討
尾田, 雅文
38630
真田, 希
38631
関口, 行雄
38632
原, 利昭
38633
Image Processing
Human Ergonomics
Human Interface
Line-of-Sight
Physically Handicapped people
Direction of Face
The purpose of this study is to detect eye-gazing points during driving a wheelchair through the image sequence analysis of video frames. The performances can be measured without restrictions of specific devices such as any accessories and sensors, which were put on a body. Images obtained with three video cameras allow the algorithm to extract four feature points on a face and irises. Their three-dimensional positions were estimated through direct linear transformation (DLT) technique with magnification of a facial image through wavelet analysis. The direction of a face was estimated via three-dimensional positions of the former, and it defined the facial coordinate. On the other hand, the eye-gazing point was e valuated through three-dimensional positions of the latter. Consequently, Some preliminary results were presented to illustrate the difference in variations with the eye-gazing point between driving a wheelchair and walking.
journal article
ライフサポート学会
1999-09
application/pdf
ライフサポート
3
11
80
85
ライフサポート
AA11947931
13419455
https://niigata-u.repo.nii.ac.jp/record/2713/files/11_3_80-85.pdf
jpn
https://www.jstage.jst.go.jp/article/lifesupport1996/11/3/11_3_80/_pdf
Copyright (C) 1999 一般社団法人ライフサポート学会
本文データは学協会の許諾に基づきJ-Stageから複製したものである