Articles de revista
Enviaments recents
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Visual acuity assessment in phakic and pseudophakic eyes under red, green, and blue illumination
(2020-12-31)
Article
Accés obertPurpose: To assess the impact of the quasi-monochromatic illumination on visual acuity (VA) in phakic and monofocal pseudophakic eyes using different wavelengths. Methods: Sixty-one eyes classified in two groups (phakic ... -
Occlusion and noise tests on the encrypted image produced by a security system based on a joint transform correlator and the Fresnel transform
(Institute of Physics (IOP), 2019-06)
Article
Accés obertIn this work, the occlusion and noise test on the encrypted image produced by a joint transform correlator-based encryption system in the Fresnel domain (FrD) are computed and presented, in order to check the performance ... -
Optical technologies for the improvement of skin cancer diagnosis: a review
(Multidisciplinary Digital Publishing Institute (MDPI), 2021-01-02)
Article
Accés obertThe worldwide incidence of skin cancer has risen rapidly in the last decades, becoming one in three cancers nowadays. Currently, a person has a 4% chance of developing melanoma, the most aggressive form of skin cancer, ... -
Equivalence of two optical quality metrics to predict the visual acuity of multifocal pseudophakic patients
(2020-05-01)
Article
Accés obertThis article studies the relationship between two metrics, the area under the modulation transfer function (MTFa) and the energy efficiency (EE), and their ability to predict the visual quality of patients implanted with ... -
Gamification, serious games and action video games in optometry practice
(Elsevier, 2020-01-06)
Article
Accés obert -
Spectroscopic evaluation of red blood cells of thalassemia patients with confocal microscopy: a pilot study
(Multidisciplinary Digital Publishing Institute (MDPI), 2020)
Article
Accés obertHemoglobinopathies represent the most common single-gene defects in the world and pose a major public health problem, particularly in tropical countries, where they occur with high frequency. Diagnosing hemoglobinopathies ... -
Experimental optical encryption scheme for the double random phase encoding using a nonlinear joint transform correlator
(2020-09-01)
Article
Accés restringit per política de l'editorialWe present a new experimental system for optical encryption using a nonlinear joint transform correlator (JTC) to implement the optical security technique of the double random phase encoding (DRPE). The DRPE, which is ... -
Tear osmolarity and ocular changes in pterygium
(2012-12)
Article
Accés restringit per política de l'editorialPurpose: To determine abnormalities in tear osmolarity (TO), tear function, and impression cytology in patients with pterygium and to assess the relationship between the variables. Methods: Thirty eyes from 30 patients ... -
Geometric model and calibration method for a solid-state LiDAR
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-05-20)
Article
Accés obertThis paper presents a novel calibration method for solid-state LiDAR devices based on a geometrical description of their scanning system, which has variable angular resolution. Determining this distortion across the entire ... -
New cost-effective sensor for the characterization of automotive headlamps by measurements in the near field
(Elsevier, 2006-12-01)
Article
Accés obertNowadays, European Normative regarding headlamp validation evaluates the photometric distribution of the source as a series of illumination values measured at a plane placed 25 m away from the light source. An innovative ... -
Micrometric noncontact profiler for optical quality surfaces
(2001-12-01)
Article
Accés restringit per política de l'editorialA non-contact technique for obtaining accurate profiles of optical qualitysurfaces with micrometric accuracy has been developed. The technique isbased on the Ronchi test principle, that is, on the study of the interaction ... -
Texture evaluation of automotive coatings by means of a gonio-hyperspectral imaging system based on light-emitting diodes
(Multidisciplinary Digital Publishing Institute (MDPI), 2020-03-27)
Article
Accés obertSparkle and graininess are textural effects that appear as intrinsic spatial features of coatings containing goniochromatic pigments, whereas others such as mottling are undesired outcomes. In this study, we present new ...