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Proceedings Paper

Centroids evaluation of the images obtained with the conical null-screen corneal topographer
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Paper Abstract

In this work, we propose some algorithms to recover the centroids of the resultant image obtained by a conical nullscreen based corneal topographer. With these algorithms, we obtain the region of interest (roi) of the original image and using an image-processing algorithm, we calculate the geometric centroid of each roi. In order to improve our algorithm performance, we use different settings of null-screen targets, changing their size and number. We also improved the illumination system to avoid inhomogeneous zones in the corneal images. Finally, we report some corneal topographic measurements with the best setting we found.

Paper Details

Date Published: 28 September 2016
PDF: 8 pages
Proc. SPIE 9971, Applications of Digital Image Processing XXXIX, 997128 (28 September 2016); doi: 10.1117/12.2237979
Show Author Affiliations
Arturo I. Osorio-Infante, Univ. Nacional Autónoma de México (Mexico)
Victor de Emanuel Armengol-Cruz, Univ. Nacional Autónoma de México (Mexico)
Manuel Campos-García, Univ. Nacional Autónoma de México (Mexico)
Cesar Cossio-Guerrero, Univ. Nacional Autónoma de México (Mexico)
Jorge Marquez-Flores, Univ. Nacional Autónoma de México (Mexico)
José Rufino Díaz-Uribe, Univ. Nacional Autónoma de México (Mexico)


Published in SPIE Proceedings Vol. 9971:
Applications of Digital Image Processing XXXIX
Andrew G. Tescher, Editor(s)

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