Recent Submissions

  • Clinical assessment of chromatic aberration in phakic and pseudophakic eyes 

    Millán Garcia-Varela, M. Sagrario; Vega Lerín, Fidel; Garzon, Nuria (Red Iberoamericana de Óptica (RIAO), 2019)
    Conference report
    Restricted access - publisher's policy
    We present a psychophysical method and a simple setup for the clinical assessment of the longitudinal chromatic aberration (LCA) in phakic and pseudophakic eyes. A proof of concept built from inexpensive and non-sophisticated ...
  • Caracterización espacial de un microdisplay AMOLED verde 

    Azor Morón, Juan Antonio; Millán Garcia-Varela, M. Sagrario (Red Iberoamericana de Óptica (RIAO), 2019)
    Conference lecture
    Restricted access - publisher's policy
  • Integration of the photon-counting technique and a joint transform correlator to encrypt and authenticate images 

    Vilardy Ortiz, Juan Manuel; Millán Garcia-Varela, M. Sagrario; Pérez Cabré, Elisabet (Red Iberoamericana de Óptica (RIAO), 2019)
    Conference lecture
    Restricted access - publisher's policy
  • Toward and ophtalmic imaging system with extended depth of focus using the asymmetric phase mask 

    Romero Pérez, Lenny Alexandra; Marrugo Hernandez, Andrés Guillermo; Millán Garcia-Varela, M. Sagrario (Red Iberoamericana de Óptica (RIAO), 2019)
    Conference lecture
    Restricted access - publisher's policy
    We study the trade-off of extending the depth-of-focus with an asymmetric phase mask optical element and the decrease of image quality in terms of a numerical optimization scheme that could be used in ophthalmic imaging systems.
  • Efecto del centrado de retinografías en los índices de tortuosidad de los vasos sanguíneos 

    Ramírez Cano, Natalia; Rallo Capdevila, Miguel; Millán Garcia-Varela, M. Sagrario (Red Iberoamericana de Óptica (RIAO), 2019)
    Conference lecture
    Restricted access - publisher's policy
  • White light interferometry for estimating the surface geometry of intraocular lenses 

    Altamar Mercado, Hernando; Vega Lerín, Fidel; Patiño Vanegas, Alberto; Marrugo Hernandez, Andrés Guillermo; Millán Garcia-Varela, M. Sagrario (Red Iberoamericana de Óptica (RIAO), 2019)
    Conference lecture
    Restricted access - publisher's policy
    In this work, we use low magnification microscopy and white light interferometry (WLSI) to perform 3D reconstructions of the surfaces of two monofocal intraocular lenses (IOLs). With the 3D reconstructions, we estimated ...
  • Low f-number multiorder diffractive lenses 

    Millán Garcia-Varela, M. Sagrario; Pérez Cabré, Elisabet; Valverde Sánchez, José (Red Iberoamericana de Óptica (RIAO), 2019)
    Conference lecture
    Restricted access - publisher's policy
  • Removing dust artifacts in retinal images via dictionary learning and sparse-based inpainting 

    Barrios Montes, Erik Miguel; Marrugo Hernandez, Andrés Guillermo; Millán Garcia-Varela, M. Sagrario (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Restricted access - publisher's policy
    In the field of ophthalmology, retinal images are essential for the diagnosis of many diseases. These images are acquired with a device called the retinal camera. However, often small dust particles in the sensor produce ...
  • Caracterización espacial y espectral de un microdisplay AMOLED en color 

    Azor Morón, Juan Antonio; Millán Garcia-Varela, M. Sagrario (Universidad de Zaragoza (UZA), 2019)
    Conference lecture
    Restricted access - publisher's policy
    Se presenta la caracterización de un microdisplay con pantalla AMOLED en color para su uso en el laboratorio de investigación óptica, en particular, para iluminar y representar el test de entrada en un sistema de procesado ...
  • Robust detection and removal of dust artifacts in retinal images via dictionary learning and sparse-based inpainting 

    Sierra, E.; Barrios Montes, Erik Miguel; Marrugo Hernandez, Andrés Guillermo; Millán Garcia-Varela, M. Sagrario (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2019)
    Conference lecture
    Restricted access - publisher's policy
    Retinal images are acquired with eye fundus cameras which, like any other camera, can suffer from dust particles attached to the sensor and lens. These particles impede light from reaching the sensor, and therefore they ...
  • Multiorder diffractive lenses with low f-number 

    Pérez Cabré, Elisabet; Millán Garcia-Varela, M. Sagrario; Valverde Sánchez, José (Universidad de Zaragoza (UZA), 2019)
    Conference lecture
    Restricted access - publisher's policy
    Recent liquid crystal on silicon (LCoS) spatial light modulators (SLMs) working on reflection can achieve large phase modulation ranges, permiting the implementation of multiorder diffractive lenses. These lenses are ...
  • Elaboración de materiales multimedia 

    Mujal-Rosas, Ramon Maria; Armengol Cebrian, Jesús (Universitat de Barcelona. Edicions i Publicacions, 2006)
    Conference report
    Open Access
    En esta ponencia se expondrán los pasos a seguir para la creación de una guía en formato Web para la elaboración de material multimedia (CD, DVD, página Web). La propuesta surgió del Instituto de Ciencias de la Educación ...

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