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Integrated DSP Control and Image Acquisition System for Measuring Monochromatic Aberrations in Human Eyes

Sulisz, Paul, Collins, Michael J., Davis, Brett A., & Iskander, D. Robert (1999) Integrated DSP Control and Image Acquisition System for Measuring Monochromatic Aberrations in Human Eyes. In 5th International Symposium on Signal Processing and its Applications, 23rd - 25th August, 1999, Brisbane, Australia.

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Abstract

The monochromatic aberrations of the human eye limit visual performance to varying degrees. An aberroscope or a Hartman-Shack sensor can measure the total aberrations of the human eye. The aberroscope that is currently being developed at the Centre for Eye Research consists of a grid pattern that is projected on the eye through a specially designed optical system and a camera that records the resulting grid image from the retina. We propose the development of an integrated DSP system that would simultaneously control the projected grid pattern and capture the retinal images. Also, we derive a detection scheme for calculating the centroids of the retinal grid pattern. These centroids are used to determine the wavefront aberration error function of the human eye. The ability to rapidly acquire multiple patterns/images increases the accuracy of the monochromatic aberration estimates.

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ID Code: 748
Item Type: Conference Paper
DOI: 10.1109/ISSPA.1999.818185
Subjects: Australian and New Zealand Standard Research Classification > MEDICAL AND HEALTH SCIENCES (110000) > OPTOMETRY AND OPHTHALMOLOGY (111300)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 1999 IEEE and International Symposium on Signal Processing and its Applications
Copyright Statement: Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Deposited On: 01 Mar 2005
Last Modified: 09 Jun 2010 22:23

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