FR2690834A3 - Positioning eyes within spectacle frames - using picture taken by video camera and computer program to apply corrections for distance and inclination. - Google Patents

Positioning eyes within spectacle frames - using picture taken by video camera and computer program to apply corrections for distance and inclination. Download PDF

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Publication number
FR2690834A3
FR2690834A3 FR9205888A FR9205888A FR2690834A3 FR 2690834 A3 FR2690834 A3 FR 2690834A3 FR 9205888 A FR9205888 A FR 9205888A FR 9205888 A FR9205888 A FR 9205888A FR 2690834 A3 FR2690834 A3 FR 2690834A3
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France
Prior art keywords
frame
distance
screen
inclination
video camera
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Granted
Application number
FR9205888A
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French (fr)
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FR2690834B3 (en
Inventor
Carriou Xavier Arthur
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CARRIOU INNOVATION SARL XAVIER
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CARRIOU INNOVATION SARL XAVIER
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Application filed by CARRIOU INNOVATION SARL XAVIER filed Critical CARRIOU INNOVATION SARL XAVIER
Priority to FR9205888A priority Critical patent/FR2690834B3/en
Priority to FR9213013A priority patent/FR2690832B1/en
Publication of FR2690834A3 publication Critical patent/FR2690834A3/en
Application granted granted Critical
Publication of FR2690834B3 publication Critical patent/FR2690834B3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C13/00—Assembling; Repairing; Cleaning
    • G02C13/003—Measuring during assembly or fitting of spectacles
    • G02C13/005—Measuring geometric parameters required to locate ophtalmic lenses in spectacles frames
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/11—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring interpupillary distance or diameter of pupils
    • A61B3/111—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for measuring interpupillary distance or diameter of pupils for measuring interpupillary distance

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  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Geometry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The eye positioning method involves taking a picture of a client wearing a spectacle frame using a video camera at a distance of more than 1.5 m. The operator traces horizontal and vertical lines (AA') and (BB') enveloping the spectacle frames on the screen and checks that (AA') are parallel. Provided the horizontal lines (AA') are parallel the distance between the vertical lines (BB') is compared to the real distance by a computer program thus calibrating the picture. The inclination of the frames is given by the distance between vertical lines (AA') allowing the real eye positions to be determined from those marked on the screen. ADVANTAGE - Eye positions within spectacle frames may be determined without physical restraint or elaborate optical equipment.

Description

La présente invention concerne un dispositif informatique pour mesurer le centrage et la hauteur de chaque pupille par rapport à la monture de lunettes, afin de réaliser le montage des verres en fonction de la monture choisie et de la morphologie du client
Les systèmes existants sont: - soit électro-mécaniques - soit photographiques
Ces systèmes ne permettent pas une prise de mesure du client en liberté de mouvement, ils impliquent - soit une contrainte physique ( adjonction d'un système sur la monture) - soit une présence dans l'environnement visuel (carcant de miroirs pour effectuer une prise de mesure photographique dans le plan de la monture).The present invention relates to a computer device for measuring the centering and the height of each pupil with respect to the spectacle frame, in order to mount the lenses as a function of the frame chosen and the morphology of the client.
The existing systems are: - either electro-mechanical - or photographic
These systems do not allow a measurement of the client in freedom of movement, they imply - either a physical constraint (addition of a system on the frame) - or a presence in the visual environment (carcass of mirrors to take a measurement photographic measurement in the plane of the frame).

Le dispositif selon l'invention permet de remédier à ces inconvéniants. I1 comporte: - un ordinateur - un système quelconque de récupération d'image informatique (caméra vidéo et carte à numériser, appareil photo numérique , scanner ) . Ce système de prise de vue est muni d'une source lumineuse ou d'un flash, il récupère une image du visage du client muni de la monture, ceci à une distance intermédiaire de plus de 1 m 50.The device according to the invention overcomes these disadvantages. I1 includes: - a computer - any computer image recovery system (video camera and digitizing card, digital camera, scanner). This shooting system is equipped with a light source or a flash, it recovers an image of the face of the client equipped with the frame, this at an intermediate distance of more than 1.50 m.

- un numérisateur de forme (palpeur) qui récupère les données exactes de la monture ( forme de chaque verre, écartement du nez , taille hors-tout des verres en hauteur et en largeur) et les transmet à l'ordinateur.- a shape digitizer (feeler) which collects the exact data of the frame (shape of each lens, spacing of the nose, overall size of the lenses in height and width) and transmits them to the computer.

Selon une forme de déroulement préférentiel l'opérateur effectue une prise de vue du visage du sujet fixant la source lumineuse et muni de sa monture de lunettes. 'opérateur numérise la forme de la monture. Puis l'opérateur grâce à un logiciel adapté, trace sur l'écran (en sur-impression sur l'image du visage) les deux lignes tangeantes, communes aux cercles droit et gauche de la monture (FIG. 1). According to a preferred form of unwinding, the operator takes a picture of the subject's face fixing the light source and fitted with his spectacle frame. operator digitizes the shape of the frame. Then the operator, using appropriate software, traces on the screen (overprinted on the face image) the two tangent lines, common to the right and left circles of the frame (FIG. 1).

Si la ligne du haut de la monture est plus ou moins parrallèle à celle du bas, alors la prise de vue est considérée comme bonne, sinon il faut refaire une prise de vue.If the top line of the frame is more or less parallel to that of the bottom, then the shot is considered to be good, otherwise a shot must be taken again.

A l'aide du logiciel adapté l'opérateur trace à l'écran deux perpendiculaires au deux parallèles pour cloisonner les cercles de montures dans un rectangle (FIG. 2). Using the appropriate software, the operator traces on the screen two perpendiculars to the two parallels to partition the frame circles in a rectangle (FIG. 2).

La distance entre ces deux perpendiculaires pseudoverticales (B) (B') sur l'écran comparée à la distance réelle hors-tout horizontale de la monture, permet I'étalonnage de l'image. Ce grandissement permet de déduire l'angle d'inclinaison de la monture par rapport au plan de la prise de vue
La distance hors tout verticale (AA' ) remise à l'échelle (HTVF) comparée à la distance hors tout verticale vraie (HTVV) implique un angle d'inclinaison (si toutefois les deux valeurs sont différentes,.The distance between these two pseudovertical perpendiculars (B) (B ') on the screen compared to the real horizontal overall distance of the frame, allows the calibration of the image. This enlargement makes it possible to deduce the angle of inclination of the frame relative to the plane of the shot.
The vertical overall distance (AA ') scaled (HTVF) compared to the true vertical overall distance (HTVV) implies an angle of inclination (if however the two values are different ,.

Cet angle est plus ou moins égal à : Arc Cosinus HTVE/HTVV
Le logiciel effectue seul ces calculs ; l'opérateur doit ensuite pointer le reflet cornéen de chaque oeil.This angle is more or less equal to: Arc Cosine HTVE / HTVV
The software performs these calculations alone; the operator must then point at the corneal reflection of each eye.

Le logiciel compte tenu, du grandissement de l'image et de l'angle d'inclinaison calcule la position réelle du centre de la pupille par rapport aux cercles de la monture. The software taking into account the magnification of the image and the angle of inclination calculates the actual position of the center of the pupil with respect to the circles of the frame.

Si la distance source lumineuse-client est connue, les positions réelles de la pupille par rapport à la monture en vision à l'infini ou en vision de près peuvent être calculée par le logiciel.  If the distance from the light source to the client is known, the actual positions of the pupil relative to the frame in infinite vision or in near vision can be calculated by the software.

Claims (2)

REVENDICATIONS 1. Procédé pour mesurer le centrage et la hauteur de chaque pupille par rapport à une monture de lunettes en vue de réaliser le montage des verres en fonction de la monture choisie et de la morphologie de l'utilisation, caractérisé en ce qu'on effectue une prise de vue du visage muni de la monture en utilisant une source lumineuse, on récupère les données exactes de la monture, on trace sur un écran, en surimpression sur l'image de la monture, les deux lignes tangentes communes aux cercles droit et gauche de la monture, on trace sur ledit écran deux perpendiculaires auxdites lignes tangentes pour cloisonner les cercles de la monture dans un rectangle, et on compare la distance (B, B') entre ces perpendiculaires à la distance réelle hors-tout horizontale de la monture, on calcule l'angle d'inclinaison de la monture par rapport au plan de la prise de vue et on détermine la position réelle de chaque pupille par rapport à la monture.1. Method for measuring the centering and the height of each pupil with respect to a spectacle frame with a view to mounting the lenses as a function of the frame chosen and the morphology of use, characterized in that one performs a shot of the face provided with the frame using a light source, we recover the exact data of the frame, we trace on a screen, superimposed on the image of the frame, the two tangent lines common to the right circles and left of the frame, we draw on said screen two perpendiculars to said tangent lines to partition the circles of the frame in a rectangle, and we compare the distance (B, B ') between these perpendiculars to the actual horizontal overall distance of the frame, we calculate the angle of inclination of the frame relative to the plane of the shot and we determine the actual position of each pupil relative to the frame. 2. Dispositif pour la mise en oeuvre du procédé selon la revendication 1, caractérisé en ce qu'il comprend un numérisateur d'image constitué par un système de prise de vue et d'une source lumineuse, un numérisateur de forme de la monture, un écran de projection des images numérisées et des moyens de traçage de lignes sur ledit écran. 2. Device for implementing the method according to claim 1, characterized in that it comprises an image digitizer constituted by a shooting system and a light source, a digitizer in the shape of the frame, a screen for projecting the digitized images and means for drawing lines on said screen.
FR9205888A 1992-05-06 1992-05-06 COMPUTERIZED DEVICE FOR TAKING MEASUREMENT WITHOUT CONSTRAINTS OF EYE POSITIONING IN RELATION TO A GLASSES FRAME. Expired - Lifetime FR2690834B3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9205888A FR2690834B3 (en) 1992-05-06 1992-05-06 COMPUTERIZED DEVICE FOR TAKING MEASUREMENT WITHOUT CONSTRAINTS OF EYE POSITIONING IN RELATION TO A GLASSES FRAME.
FR9213013A FR2690832B1 (en) 1992-05-06 1992-10-30 METHOD FOR IDENTIFYING THE REAL POSITIONING OF THE CENTER OF AN EYE PUPIL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9205888A FR2690834B3 (en) 1992-05-06 1992-05-06 COMPUTERIZED DEVICE FOR TAKING MEASUREMENT WITHOUT CONSTRAINTS OF EYE POSITIONING IN RELATION TO A GLASSES FRAME.

Publications (2)

Publication Number Publication Date
FR2690834A3 true FR2690834A3 (en) 1993-11-12
FR2690834B3 FR2690834B3 (en) 1994-05-06

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FR9205888A Expired - Lifetime FR2690834B3 (en) 1992-05-06 1992-05-06 COMPUTERIZED DEVICE FOR TAKING MEASUREMENT WITHOUT CONSTRAINTS OF EYE POSITIONING IN RELATION TO A GLASSES FRAME.

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FR (1) FR2690834B3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101907783B (en) * 2009-06-03 2011-12-28 潘海生 Spectacle frame three-dimensional integrated shaping standard and pupil center three-dimensional focus positioning spectacle dispensing technology

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101907783B (en) * 2009-06-03 2011-12-28 潘海生 Spectacle frame three-dimensional integrated shaping standard and pupil center three-dimensional focus positioning spectacle dispensing technology

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Publication number Publication date
FR2690834B3 (en) 1994-05-06

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