24 July 2006 Fundus topology visualization and registration with high resolution and in a wide range of angles
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Abstract
The problem of software and hardware implementation of methods for the visualization of fundus is considered. The parameters of the visualization must meet the medical requirements for the devices of early diagnostics of various diseases including insular diabetes, abnormalities in the permeability of the carotid artery, AIDS, etc. The requirements to the resolution and the field of registration are analyzed. It is demonstrated that the size of the registered image must be at least 2 times 103 x 2 times 103 TV lines (4 times 103 x 4 times 103 pixels). A device for measuring out-of-the-axis aberrations of the optical system of the eye (OEA) is described, which is based on the Hartmann-Shack sensor (HSS). The results of the investigation of OEA under various oblique angles and sizes of the patient's pupil are presented. It is shown that the visualization with acceptable quality within the field of the order requires 90° the size of the pupil at most 3 mm and the angular size of the registered fragment ofthe image at most 15° near the optical axis of the eye and 8° in the peripheral areas.
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Mariya I. Tyurina, Mariya I. Tyurina, Irina V. Vorob'eva, Irina V. Vorob'eva, Viktor K. Salakhutdinov, Viktor K. Salakhutdinov, Djaser Doroshenko, Djaser Doroshenko, } "Fundus topology visualization and registration with high resolution and in a wide range of angles", Proc. SPIE 6163, Saratov Fall Meeting 2005: Optical Technologies in Biophysics and Medicine VII, 61631M (24 July 2006); doi: 10.1117/12.697359; https://doi.org/10.1117/12.697359
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