Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Estela López-Olazagasti"'
Manufacture and analysis of a refractive surface with variable asphericity to model the human cornea
Autor:
Estela López-Olazagasti, Agustin Santiago Alvarado, Eduardo Tepichin-Rodriguez, Angel S. Cruz-Felix, Emilio R. Reyes-Perez, F. Iturbide-Jiménez
Publikováno v:
SPIE Proceedings.
The cornea contributes substantially to the performance of the human eye and obtaining the shape of the anterior corneal surface is crucial for ophthalmic applications such as the manufacture of contact lenses and visual laser correction. In this dir
Autor:
Eduardo Tepichin-Rodriguez, Angel S. Cruz Félix, Estela López-Olazagasti, Sandra Balderas-Mata
Publikováno v:
SPIE Proceedings.
The application of the wavefront sensors to measuring the monochromatic aberrations of the normal human eyes has given a new insight in the objective understanding of its performance. The resultant wavefront aberration function can be applied to eval
Autor:
Eduardo Tepichin-Rodriguez, Sandra Balderas-Mata, Estela López-Olazagasti, Angel S. Cruz Félix
Publikováno v:
SPIE Proceedings.
In recent years there has been many advances in the field of visual optics, such as new technologies to measure and to analyze the wavefront aberration function of the human eye. In this direction, corneal topographers have been extensively used as a
Autor:
Jorge Ibarra Galitzia, Luis David Lara-Rodríguez, Elizabeth López-Meléndez, Eduardo Tepichin-Rodriguez, Estela López-Olazagasti
Publikováno v:
SPIE Proceedings.
We present in this work the use of two Gaussian models that describe reflectance of two different textures for the reconstruction of tridimensional objects made of these textures. The textures of the objects are segmented using a combination of image
Autor:
Marco Antonio Canchola Chavez, Jorge Ibarra Galitzia, Estela López Olazagasti, Gustavo Ramirez Zavaleta, Eduardo Tepichin Rodriguez
Publikováno v:
SPIE Proceedings.
The recovery profile of an object is of great interest in different technical, metrological and medical applications. In this work we present a system which, through a single graphical interface, we can set grid generation, acquisition and image proc
Autor:
Elizabeth López-Meléndez, Estela López-Olazagasti, Luis David Lara-Rodríguez, Bárbara Sánchez-Rinza, Eduardo Tepichin-Rodriguez
Publikováno v:
CONIELECOMP
The Breast Imaging Reporting and Data System (BIRADS) was developed by the American College of Radiologists as a standard of comparison for rating mammograms and breast ultrasound images. It sets up a classification for the Level of Suspicion (LOS) o
Autor:
Estela López Olazagasti, César Eduardo Hernández y del Callejo, Eduardo Tepichin, Gustavo Ramírez-Zavaleta, Jorge Ibarra-Galitzia
Publikováno v:
SPIE Proceedings.
Keratoconus is a corneal disease in which the cornea assumes a conical shape due to an irregular alteration of the internal structure of the corneal tissue and sometimes is progressive, especially in young people. Anatomically, the main signs of kera
Autor:
Eduardo Tepichin-Rodriguez, David Sánchez-de-la-Llave, Estela López-Olazagasti, Gustavo Ramírez-Zavaleta, Angel S. Cruz Félix
Publikováno v:
SPIE Proceedings.
The analysis and measurement of the wavefront aberration function are very important tools in the field of visual optics; they are used to understand the performance of the human eye in terms of its optical aberrations. In recent years, we have compa
Autor:
Angel S. Cruz Félix, Gustavo Ramírez-Zavaleta, Estela López-Olazagasti, Eduardo Tepichin, J. Ibarra, David Sánchez-de-la-Llave
Publikováno v:
SPIE Proceedings.
In recent years we have been working in the characterization of the objective average performance of a set of uncorrected human eyes with a 20/20 visual acuity, described as the resultant average wavefront aberration function (WA), point-spread funct
Autor:
Lucerito Morales-Tellez, Eduardo Tepichin, Estela López-Olazagasti, Gustavo Ramírez-Zavaleta, Marco A. Rosales
Publikováno v:
SPIE Proceedings.
In order to explore and analyze the effect of an ablation performed on the anterior corneal surface, it is useful to calculate the refractive power maps of the original and the treated corneas. The optical characteristics of the anterior corneal surf