Exploració per autor "Arjona Carbonell, Mª Montserrat"
Ara es mostren els items 13-32 de 35
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Iris color and texture: a comparative analysis of real irises, ocular prostheses, and colored contact lenses
Herrera Ramírez, Jorge Alexis; Vilaseca Ricart, Meritxell; Düll, Jochen; Arjona Carbonell, Mª Montserrat; Torrecilla Ribalta, Elena; Pujol Ramo, Jaume (2011-10)
Article
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Iris color evaluation through multispectral systems
Herrera Ramírez, Jorge Alexis; Vilaseca Ricart, Meritxell; Pujol Ramo, Jaume; Arjona Carbonell, Mª Montserrat; de Lasarte, Marta (2008)
Text en actes de congrés
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Líneas de investigación en óptica visual y tecnología del color en el CD6
Pujol Ramo, Jaume; Vilaseca Ricart, Meritxell; Arjona Carbonell, Mª Montserrat; de Lasarte, Marta; Aldaba Arévalo, Mikel; Zuluaga Duque, Harold; Herrera Ramírez, Jorge Alexis; Díaz Douton, Fernando; Luque, Sergio Oscar; Sanabria Ortega, Fernando Guillermo; Ondategui Parra, Juan Carlos (2009)
Text en actes de congrés
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Luminance adaptation model for increasing the dynamic range of an imaging system based on a CCD camera
de Lasarte, Marta; Arjona Carbonell, Mª Montserrat; Vilaseca Ricart, Meritxell; Martínez Verdú, Francisco Miguel; Pujol Ramo, Jaume (2011-06-01)
Article
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Measuring the accommodative response with a double-pass system: Comparison with the Hartmann-Shack technique
Aldaba Arévalo, Mikel; Vilaseca Ricart, Meritxell; Díaz-Doutón, Fernando; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume (2012-04)
Article
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Medida del retraso acomodativo con la técnica de doble paso
Aldaba Arévalo, Mikel; Arjona Carbonell, Mª Montserrat; Díaz-Doutón, Fernando; Luque, Sergio Oscar; Pujol Ramo, Jaume (2009)
Text en actes de congrés
Accés restringit per política de l'editorialLa acomodación se define como el cambio dióptrico en la potencia del ojo, que permite ver nítidamente a diferentes distancias. La profundidad de foco del ojo hace que se puedan ver objetos cercanos nítidamente con menor ... -
Multispectral system for recovering near-infrared reflectance spectra
Arjona Carbonell, Mª Montserrat; Vilaseca Ricart, Meritxell; Pujol Ramo, Jaume; Martínez Verdú, Francisco Miguel (2004)
Text en actes de congrés
Accés restringit per decisió de l'autorIn this paper, we analyze an experimental system for recovering the reflectance spectra of samples in the nearinfrared region of the spectrum (NIR, 800-1000 nm). Recently, CCD cameras with improved response in the NIR ... -
New compact open-field double-pass system with asymmetric focus
Giner Tort, Anna; Arjona Carbonell, Mª Montserrat; Díaz Douton, Fernando; Aldaba Arévalo, Mikel; García Guerra, Carlos Enrique; Sanabria Ortega, Fernando Guillermo; Pujol Ramo, Jaume (2018-01-01)
Article
Accés obertEvery day more people are using multifocal systems to correct presbyopia, as for example contact lenses or intraocular lenses. As a consequence, the necessity to do an appropriate characterization of their optical quality ... -
Non-cycloplegic spherical equivalent refraction in adults: comparison of the double-pass system, retinoscopy, subjective refraction and a table-mounted autorefractor
Vilaseca Ricart, Meritxell; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume; Peris March, María Elvira; Martínez Rodríguez, Vanessa (2013-10-18)
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Optical quality after myopic photorefractive keratectomy and laser in situ keratomileusis: Comparison using a double-pass system
Ondategui Parra, Juan Carlos; Vilaseca Ricart, Meritxell; Arjona Carbonell, Mª Montserrat; Montasell, Ana; Cardona Torradeflot, Genís; Güell, José L.; Pujol Ramo, Jaume (2012)
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Optics of astigmatism and retinal image quality
Vilaseca Ricart, Meritxell; Díaz-Doutón, Fernando; Luque, Sergio Oscar; Aldaba Arévalo, Mikel; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume (INTECH, 2012-02)
Capítol de llibre
Accés obertIn the first part of this chapter, the optical condition of astigmatism is defined. The main causes and available classifications of ocular astigmatism are briefly described. The most relevant optical properties of image ... -
Preliminary results of the development of a multispectral imaging system for colour measurements
Lasarte Rigueiro, Marta de; Pujol Ramo, Jaume; Arjona Carbonell, Mª Montserrat; Vilaseca Ricart, Meritxell (2007)
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Reducing speckle in double-pass systems using focus tunable lenses
García Guerra, Carlos Enrique; Aldaba Arévalo, Mikel; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume (2014)
Text en actes de congrés
Accés restringit per política de l'editorialSpeckle arises in double-pass systems when coherent light is reflected by the retina. Since it degrades the images that are used to characterize the eye, there is special attention in reducing speckle when working with ... -
Repeatability of aberrometric measurements with a new instrument for vision analysis based on adaptive optics
Otero Molins, Carles; Vilaseca Ricart, Meritxell; Arjona Carbonell, Mª Montserrat; Martínez Roda, Juan Antonio; Pujol Ramo, Jaume (2015-03-01)
Article
Accés restringit per política de l'editorialPURPOSE: To evaluate intersession and intrasession repeatability of aberration data obtained with a new visual simulator based on adaptive optics, which includes a Hartmann-Shack aberrometer (Adaptive Optics Vision Analyzer; ... -
Reproducción espectral de valores triestímulo mediante descripciones B-Spline: evaluación del error en el color
Pizarro Bondia, Carlos; Arasa Marti, Jose; de Lasarte, Marta; Pujol Ramo, Jaume; Arjona Carbonell, Mª Montserrat; Vilaseca Ricart, Meritxell (2008)
Text en actes de congrés
Accés obertLa principal motivación de este trabajo es la búsqueda de una única expresión matemática que permita reproducir distribuciones espectrales de forma general. Para ello se consideran polinomios B-Spline rotacionales de segundo ... -
Response for light scattered in the ocular fundus from double-pass and Hartmann–Shack estimations
García Guerra, Carlos Enrique; Aldaba Arévalo, Mikel; Arjona Carbonell, Mª Montserrat; Díaz Douton, Fernando; Martínez Roda, Juan Antonio; Pujol Ramo, Jaume (2016-10-06)
Article
Accés obertDouble-pass (DP) and Hartmann--Shack (HS) are complementary techniques based on reflections of light in the ocular fundus that may be used to estimate the optical properties of the human eye. Under conventional data ... -
Speckle reduction in double-pass retinal images using variable-focus lenses
García Guerra, Carlos Enrique; Aldaba Arévalo, Mikel; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume (2015-01-01)
Article
Accés obertSpeckle arises in double-pass images when coherent light is scattered by the retina. Since this noise degrades the images that are used to characterize the eye, there is special attention in reducing speckle when working ... -
Spectral variability of light-emitting diodes with angle
Martínez, Óscar; Vilaseca Ricart, Meritxell; Pizarro Bondia, Carlos; Ferrer, Edgard; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume (2010)
Comunicació de congrés
Accés restringit per política de l'editorialMultispectral systems allow the spectral characterization of the scene through several acquisition channels with different spectral features. The spectral sampling can be done by using transmittance filters and a white ... -
Task oriented visual satisfaction and wearing success with two different simultaneous vision multifocal soft contact lenses
Gispets Parcerisas, Joan; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume; Vilaseca Ricart, Meritxell; Cardona Torradeflot, Genís (Elsevier, 2011)
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Texture analysis the evaluation of human irises reproduction in ocular prostheses and colored contact lenses
Herrera Ramírez, Jorge Alexis; Vilaseca Ricart, Meritxell; Arjona Carbonell, Mª Montserrat; Pujol Ramo, Jaume (2009)
Text en actes de congrés
Accés restringit per política de l'editorialThis work takes advantage of multispectral data from human irises, ocular prostheses and colored contact lenses to compare them accounting for their texture features. For this aim, several procedures from image processing ...