28 September 2016 Centroids evaluation of the images obtained with the conical null-screen corneal topographer
Author Affiliations +
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.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Arturo I. Osorio-Infante, Arturo I. Osorio-Infante, Victor de Emanuel Armengol-Cruz, Victor de Emanuel Armengol-Cruz, Manuel Campos-García, Manuel Campos-García, Cesar Cossio-Guerrero, Cesar Cossio-Guerrero, Jorge Marquez-Flores, Jorge Marquez-Flores, José Rufino Díaz-Uribe, José Rufino Díaz-Uribe, } "Centroids evaluation of the images obtained with the conical null-screen corneal topographer", Proc. SPIE 9971, Applications of Digital Image Processing XXXIX, 997128 (28 September 2016); doi: 10.1117/12.2237979; https://doi.org/10.1117/12.2237979


Back to Top