METHOD AND DEVICE FOR PREPARING A SPECTACLE FRAME
First Claim
1. A method for preparing a spectacle frame (1) adapted to a face, the spectacle frame (1) having a bridge (11) between two lenses (9-10) and a frame front (2) with end-pieces (5-6) to which temples (3-4) are connected, the method including the following steps:
- procuring an image (I) of the face, forehead uncovered,identifying characteristic points (A, A1, A2, OD, OG) on the image (I) of the face,identifying shape points (A, A2, MFD, MFG, ELPD, ELPG, BD, BG) on the image (I) of the face,identifying by these shape points (A, A2, MFD, MFG, ELPD, ELPG, BD, BG) the shape of the face among predefined characteristic shapes,determining from these characteristic points a receiving box (S′
R′
D′
, S′
R′
G′
, I′
R′
G′
, I′
R′
D′
) for the frame front of the spectacle frame, anddetermining the width and the position in terms of height of the end-pieces relative to the face of the spectacle frame as a function of the identified shape of the face.
1 Assignment
0 Petitions
Accused Products
Abstract
A method for preparing a spectacle frame (1) adapted to a face, the spectacle frame (1) having a bridge (11) between two optical lenses (9-10) and a surface (2) having end pieces (5-6) to which temples (3-4) are connected. The method includes providing an image of the face; identifying the characteristic points on the image of the face; identifying shape points on the image of the face; identifying the shape of the face from among predefined characteristic shapes using the shape points; determining from the characteristic points a frame of reference for receiving the surface of the spectacle frame; and determining the height position and width of the end pieces relative to the surface of the spectacle frame depending on the face shape identified.
19 Citations
9 Claims
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1. A method for preparing a spectacle frame (1) adapted to a face, the spectacle frame (1) having a bridge (11) between two lenses (9-10) and a frame front (2) with end-pieces (5-6) to which temples (3-4) are connected, the method including the following steps:
-
procuring an image (I) of the face, forehead uncovered, identifying characteristic points (A, A1, A2, OD, OG) on the image (I) of the face, identifying shape points (A, A2, MFD, MFG, ELPD, ELPG, BD, BG) on the image (I) of the face, identifying by these shape points (A, A2, MFD, MFG, ELPD, ELPG, BD, BG) the shape of the face among predefined characteristic shapes, determining from these characteristic points a receiving box (S′
R′
D′
, S′
R′
G′
, I′
R′
G′
, I′
R′
D′
) for the frame front of the spectacle frame, anddetermining the width and the position in terms of height of the end-pieces relative to the face of the spectacle frame as a function of the identified shape of the face. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification