Edge detector in an ophthalmic eye evaluation system

A - Human Necessities – 61 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

A61B 3/107 (2006.01)

Patent

CA 2560308

An ophthalmic eye evaluation system (10) includes a pattern (12) of alternating light and dark areas. An illumination source (14) projects the pattern (12) onto a patient's eye (16). A camera (18) captures one or more images of the pattern (12) reflected from the eye (16). A memory (20) is connected to the camera (18) for storing the images of the reflected pattern. An edge detector (22) determines a transition point where the stored reflected pattern alternates from a light area to a dark area. The edge is determined as being at a point 50% between a maximum stored intensity level and a minimum stored intensity level.

L'invention concerne un système d'examen ophtalmologique (10) qui comprend un diagramme (12) constitué de zones claires et obscures en alternance. Une source d'éclairage (14) projette le diagramme (12) sur l'oeil d'un patient (16). Une caméra (18) capte une ou plusieurs images du diagramme (12) réfléchies par l'oeil (16). Une mémoire (20) est connectée à la caméra (18) pour stocker les images réfléchies du diagramme. Un détecteur de bord (22) détermine un point de transition où le diagramme réfléchi stocké alterne entre une zone claire et une zone obscure. Le bord est considéré comme étant situé à un point situé à 50 % entre un niveau d'intensité stocké maximal et un niveau d'intensité stocké minimal.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Edge detector in an ophthalmic eye evaluation system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Edge detector in an ophthalmic eye evaluation system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Edge detector in an ophthalmic eye evaluation system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1664743

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.