Optical surface reconstruction technique through combination of zonal and modal fitting
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Título: | Optical surface reconstruction technique through combination of zonal and modal fitting |
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Autor/es: | Espinosa, Julián | Mas, David | Pérez Rodríguez, Jorge | Illueca Contri, Carlos |
Grupo/s de investigación o GITE: | Óptica y Ciencias de la Visión |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Óptica, Farmacología y Anatomía |
Palabras clave: | Zernike polynomials | Wavefront error | Surface reconstruction | Corneal irregularities |
Área/s de conocimiento: | Óptica |
Fecha de creación: | 2010 |
Fecha de publicación: | 16-abr-2010 |
Editor: | SPIE, The International Society for Optical Engineering |
Cita bibliográfica: | ESPINOSA TOMÁS, Julián, et al. “Optical surface reconstruction technique through combination of zonal and modal fitting”. Journal of Biomedical Optics. Vol. 15, Issue 2 (March-Apr. 2010). ISSN 1083-3668, pp. 026022-1/7 |
Resumen: | Videokeratometers and Scheimpflug cameras permit accurate estimation of corneal surfaces. From height data it is possible to adjust analytical surfaces that will be later used for aberration calculation. Zernike polynomials are often used as adjusting polynomials, but they have shown to be not precise when describing highly irregular surfaces. We propose a combined zonal and modal method that allows an accurate reconstruction of corneal surfaces from height data, diminishing the influence of smooth areas over irregular zones and vice versa. The surface fitting error is decreased in the considered cases, mainly in the central region, which is more important optically. Therefore, the method can be established as an accurate resampling technique. |
Patrocinador/es: | Consellería de Educación project GV/2009/002 from the Generalitat Valenciana. |
URI: | http://hdl.handle.net/10045/13913 |
ISSN: | 1083-3668 (Print) | 1560-2281 (Online) |
DOI: | 10.1117/1.3394260 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | Copyright 2010 Society of Photo-Optical Instrumentation Engineers. This paper was published in Journal of Biomedical Optics, Vol. 15, and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. |
Revisión científica: | si |
Versión del editor: | http://dx.doi.org/10.1117/1.3394260 |
Aparece en las colecciones: | INV - IMAOS+V - Artículos de Revistas |
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