Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Cesar Cossio-Guerrero"'
Publikováno v:
SPIE Proceedings.
In this work, we design a conical null-screen for testing non-symmetric corneas. We proposed a custom evaluation algorithm in order to calculate the shape of the corneal surface. This data is fitting to a custom non-symmetrical shape surface, taking
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bbf7ff3f8a84d9d75035a332a6ae8d15
https://doi.org/10.1117/12.2270042
https://doi.org/10.1117/12.2270042
Publikováno v:
SPIE Proceedings.
In every optical testing method, the time taken to process data, the precision of the results and the sensitivity are among the most relevant aspects to be taken into account when the viability of its implementation is been under consideration. An ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10c33e9fb55cecd5c16646fd3219b312
https://doi.org/10.1117/12.2238280
https://doi.org/10.1117/12.2238280
Autor:
Manuel Campos-García, Jorge Marquez-Flores, Victor de Emanuel Armengol-Cruz, José Rufino Díaz-Uribe, Cesar Cossio-Guerrero, Arturo I. Osorio-Infante
Publikováno v:
Applications of Digital Image Processing XXXIX.
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 imag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a3b60b1595674a9aab48b7262b3c3cf
https://doi.org/10.1117/12.2237979
https://doi.org/10.1117/12.2237979
Autor:
José Rufino Díaz-Uribe, Manuel Campos-García, Cesar Cossio-Guerrero, Victor de Emanuel Armengol-Cruz, Arturo I. Osorio-Infante
Publikováno v:
SPIE Proceedings.
In this work, we will present some improvements to the conical null-screen based corneal topographer, for testing aspheric surfaces without rotational symmetry. We present the formulae to design the conical null-screen in such a way that the image on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad2b0e57a4485978c889eefaa210b10a
https://doi.org/10.1117/12.2237372
https://doi.org/10.1117/12.2237372
Autor:
Cesar Cossio-Guerrero, Víctor Iván Moreno-Oliva, Manuel Campos-García, Oliver Huerta-Carranza
Publikováno v:
SPIE Proceedings.
In this work we report the design of a null-screen for corneal topography. To avoid the difficulties in the alignment of the test system due to the face contour (eyebrows, nose, or eyelids), we design a conical null-screen with a novel radial points
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c7aab3291a5de4cebe06583f291ec62
https://doi.org/10.1117/12.2192137
https://doi.org/10.1117/12.2192137
Autor:
Víctor Iván Moreno-Oliva, Manuel Campos-García, Oliver Huerta-Carranza, Cesar Cossio-Guerrero
Publikováno v:
Applied optics. 54(17)
In order to measure the shape of fast convex aspherics, such as the corneal surface of the human eye, we propose the design of a conical null-screen with a radial point distribution (spots similar to ellipses) drawn on it in such a way that its image
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c87a69d13d52b4e69bac1e102d1076ce
https://pubmed.ncbi.nlm.nih.gov/26192841
https://pubmed.ncbi.nlm.nih.gov/26192841
Autor:
Manuel Campos-García, Cesar Cossio-Guerrero, Amilcar Estrada-Molina, Oliver Huerta-Carranza, Víctor Iván Moreno-Oliva
Publikováno v:
Scopus-Elsevier
We report the characterization of a conical null-screen. We design a conical null-screen with an array of drop shaped spots. The reference is a sphere with radius 7.8 mm and diameter 11 mm.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::496a221ba9a07023324c3171e2e1ac6b
http://www.scopus.com/inward/record.url?eid=2-s2.0-84931363053&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-84931363053&partnerID=MN8TOARS
