Imaging correlography applied to high resolution retinal imaging

Brice Thurin; Luis Diaz-Santana

doi:10.1117/12.728027

18 July 2007 Imaging correlography applied to high resolution retinal imaging

Brice Thurin, Luis Diaz-Santana

Proceedings Volume 6631, Novel Optical Instrumentation for Biomedical Applications III; 66311H (2007) https://doi.org/10.1117/12.728027
Event: European Conferences on Biomedical Optics, 2007, Munich, Germany

Abstract

The resolution of the images obtained from the eye fundus are limited by the ocular aberrations. As most of the aberrations are due to the eye optics, they do not affect the light intensity measured in the eye iris plane. By illuminating the retina with a laser and collecting the light in a pupil plane conjugate, it is possible to apply the imaging correlography technique. From processing series of pupil plane images, this technique gives information about the retina in the form of the squared modulus of the Fourier transform or, equivalently, the autocorrelation of the diffraction-limited image intensity. Two factors make this technique suitable for retinal imaging: 1) For this technique to work, changes of phase distribution in the retinal plane are necessary between each frame. Small eye movements naturally provide these changes; 2) This method does not provide directly the phase of the Fourier transform. Therefore it is of most use for centro-symmetric objects like the retina's photoreceptor mosaic. Preliminary data have been obtained in vivo showing the feasibility of applying such a technique in the eye. Experimental results are compared against simulation based on retinal scattering model.

Citation Download Citation

Brice Thurin and Luis Diaz-Santana "Imaging correlography applied to high resolution retinal imaging", Proc. SPIE 6631, Novel Optical Instrumentation for Biomedical Applications III, 66311H (18 July 2007); https://doi.org/10.1117/12.728027

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
9 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Retina

Eye

Speckle

Speckle pattern

Cones

Fourier transforms

Scattering

Show All Keywords

Keywords/Phrases

Search In:

Publication Years