rss
Br J Ophthalmol 2001;85:563-565 doi:10.1136/bjo.85.5.563
  • Scientific correspondence

Mosaicking and enhancement of slit lamp biomicroscopic fundus images

  1. Jane Asmutha,
  2. Bojidar Madjarovb,
  3. Paul Sajdaa,
  4. Jeffrey W Bergerb
  1. aSarnoff Corporation, Princeton, NJ, USA, bComputer Vision Laboratory, Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA, USA
  1. Jeffrey W Berger, MD, PhD, Computer Vision Laboratory, Scheie Eye Institute, University of Pennsylvania, Philadelphia, PA 19104, USAjwberger{at}mail.med.upenn.edu
  • Accepted 14 December 2000

Abstract

AIMS To process video slit lamp biomicroscopic fundus image sequences in order to generate wide field, high quality fundus image montages which might be suitable for photodocumentation.

METHODS Slit lamp biomicroscopic fundus examination was performed on human volunteers with a contact or non-contact lens. A stock, charge coupled device camera permitted image capture and storage of the image sequence at 30 frames per second. Acquisition time was approximately 30 seconds. Individual slit lamp biomicroscope fundus image frames were aligned and blended with custom developed software.

RESULTS The developed algorithms allowed for highly accurate alignment and blending of partially overlapping slit lamp biomicroscopic fundus images to generate a seamless, high quality, wide field montage.

CONCLUSIONS Video image acquisition and processing algorithms allow for mosaicking and enhancement of slit lamp biomicroscopic fundus images. The improved quality and wide field of view may confer suitability for inexpensive, real time photodocumentation of disc and macular abnormalities.

Footnotes

    This Article

    1. Abstract
    2. Full text
    3. PDF

    Responses

    1. Submit a response
    2. No responses published

    Register for free content

    The full back archive is now available for all BMJ Journals. Institutional subscribers may access the entire archive as part of their subscription. Personal subscribers will also have access to all content when logged in. Non-subscribers who register have free access to all articles published before 2006 right back to volume 1 issue 1. Register here to access the free archive of all BMJ Journals.

    Don't forget to sign up for content alerts so you keep up to date with all the articles as they are published.