Zernike polynomial fitting algorithm used in corneal topography

Authors

Victor Arni Sicam ⋅ PH Department of Physics, University of San Carlos
Adonis Flores ⋅ PH Department of Physics, University of San Carlos
Edcel John Salumbides ⋅ PH Department of Physics, University of San Carlos

Abstract

This paper discusses a surface reconstruction algorithm that can be used for corneal togographers that uses measured reflection of a stimulus pattern. This algorithm uses Zernike polynomial fitting. Numerical tests using simulated surfaces show that the algorithm produces sub-micron accuracy in predicting the radius of curvature of conic surfaces. This accuracy is way below the instrumental accuracy of conventional placido disk based corneal topographers, which is usually greater than 1 micron.

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Issue

2003: Proceedings of the 21st Samahang Pisika ng Pilipinas Physics Congress

Creating essential bridges uniting physics, society and industry
22-25 October 2003, University of San Carlos, Cebu City

Article ID

SPP-2003-2A-01

Section

Computational Physics

Published

2003-10-22

How to Cite

[1]

VA Sicam, A Flores, and EJ Salumbides, Zernike polynomial fitting algorithm used in corneal topography, Proceedings of the Samahang Pisika ng Pilipinas 21, SPP-2003-2A-01 (2003). URL: https://proceedings.spp-online.org/article/view/SPP-2003-2A-01.