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US 10,120,207 B2Granted
Method for determining ocular and optical measurements
AssigneeFittingbox
InventorsSylvain Le Gallou, Ariel Choukroun
Life of this patent
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Abstract
A method for determining ocular and optical measurements for the production and fitting of corrective eyeglasses for a user with the aid of the a camera. The method utilizes a protocol for reconstructing the system of the user's eyes in three dimensions by modeling the system of the eye, thereby providing precise ocular and optical measurements. The method uses test objects that are connected or not connected to the user's face.
Claims21
A method for determining ocular and optical measurements for fabricating and mounting lenses of corrective spectacles for a user, comprising the steps of:
- determining a template and a size of a test object selected from a list of standardized objects comprising a bank card, a loyalty card with a bank card format, a compact disc (CD) and a pair of spectacles;
- receiving images of a face of the user from a camera, the images comprising the test object;
- detecting the test object in the images;
- determining a set of 3D points constituting the test object;
- calibrating the dimensions of the images by aligning the template to the detected test object;
- and
- determining an interpupillary distance (PD3D) between user's two eyes by a processor configured to:
- model an eye system of the user, using a protocol of three-dimensional reconstruction of the eye system, the reconstructed eye system including a tridimensional model of each eye positioned in a tridimensional space;
- and measure the interpupillary distance (PD3D) between user's two eyes reconstructed in three dimensions, the interpupillary distance defining a distance between rotation centers of two eyes.
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Dependencies are inferred from the claim text.