发明名称 |
METHODS AND APPARATUS FOR LOCATING THE EYE IN THREE DEMENSIONS |
摘要 |
In a method and apparatus for locating the position of an eye in three dimensions, an emitter projects light illuminating the eye whose location is to be determined. A reflection from the eye travels back and is focused by a lens so to impinge upon a sensor. Using a beam splitter or other arrangement, the light is cast so the field of view of the lens is coincident with the projected light. Given a known relationship between lens and sensor, a unique line is established along which the reflecting eye must lie. Two distinct lines define a unique location in three dimensions for the eye. Also, a single line and other known position data of the eye can be combined. Eye position can be obtained using bright pupil reflections, corneal reflections, or reflections of another type.
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申请公布号 |
WO2007146714(A3) |
申请公布日期 |
2008.12.24 |
申请号 |
WO2007US70555 |
申请日期 |
2007.06.06 |
申请人 |
YANCEY, DON;ROULET, JEAN-CHRISTOPHE |
发明人 |
YANCEY, DON;ROULET, JEAN-CHRISTOPHE |
分类号 |
A61B13/00 |
主分类号 |
A61B13/00 |
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