Method of measuring the position, in a horizontal direction in the sagittal plane, of a remarkable point of an eye of a subject
US8360580B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 26, 2008 |
| Grant date | Jan 29, 2013 |
| Priority date | — |
| Expiry date | Jul 23, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/19
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention relates in general to taking geometrico-morphological measurements on a subject. More particularly, the invention relates to a method of measuring the position of a remarkable point of the subject's eye. The method includes amongst others, the steps of capturing images in different relative postures (APIV1, APIV2, (O1,X1,Y1,Z1), (O2,X2,Y2,Z2)) of a subject, identifying reference points of the eye ((RCG1, RCD1), (RCG2, RCD2)), and calculating the remarkable point (CROD, CROG) as a function of the captured images. The values of the posture parameter (APIV) are obtained by a position-identification element (60, 70, 80, 700, 800) having at least one known geometrical characteristic that is placed on the subject's head. Each captured image contains a representation of the position-identification element (60, 70, 80, 700, 800). The posture parameter is thus calculated as a function of these images and of the known geometrical characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.