A fast, robust pattern recognition asystem for low light level image registration and its application to retinal imaging

31 August 1997

journal article
Published by Optica Publishing Group in Optics Express

Vol. 3 (5) , 190-197
https://doi.org/10.1364/oe.3.000190

Abstract

We describe an image processing system which we have developed to align autofluorescence and high-magnification images taken with a laser scanning ophthalmoscope. The low signal to noise ratio of these images makes pattern recognition a non-trivial task. However, once n images are aligned and averaged, the noise levels drop by a factor of √n and the image quality is improved. We include examples of autofluorescence images and images of the cone photoreceptor mosaic obtained using this system.

Keywords

EYE MOVEMENTS
IMAGE PROCESSING
IMAGE QUALITY
IMAGE REGISTRATION
IMAGING SYSTEMS
LOW LIGHT LEVELS

This publication has 0 references indexed in Scilit: