Patent ID: 8231220
Filing Date: 2012-07-31
Classification: G02C

Abstract:
1. A method of measuring at least one geometrico-physionomic parameter (H, TETA) concerning the positioning on the face of a wearer of a frame ( 10 ) for vision-correcting eyeglasses, the method comprising capturing at least one digital image of the wearer's face wearing the frame ( 10 ) by using an image sensor such as an image capture appliance ( 1 ; 101 ; 102 ; 103 ; 104 ; 105 ; 200 ), and processing the captured image to determine the geometrico-physionomic parameter (H, TETA), the method being characterized in that the image capture appliance ( 1 ; 101 ; 102 ; 103 ; 104 ; 105 ; 200 ) is of the portable type held in the hand by an operator, and prior to capturing an image, the operator manually positions the image capture appliance ( 1 ; 101 ; 102 ; 103 ; 104 ; 105 ; 200 ) in a first configuration in which a line of observation (DO) connecting the pupil ( 7 ) of the image capture appliance ( 1 ; 101 ; 102 ; 103 ; 104 ; 105 ; 200 ) to a predetermined remarkable point (RC) directly or indirectly associated with the wearer's face or with the frame is substantially horizontal, and in that the image is captured in a second configuration of the image capture appliance ( 1 ; 101 ; 102 ; 103 ; 104 ; 105 ; 200 ) identical to or distinct from the first configuration, such that the altitude of said image capture appliance ( 1 ; 101 ; 102 ; 103 ; 104 ; 105 ; 200 ) is identical to its altitude in the first configuration, and in that the calculation of the geometrico-physionomic parameter (H, TETA) includes identifying, in the image, the image of the predetermined remarkable point (RC).