Exploració per autor "Romero Pérez, Lenny Alexandra"
Ara es mostren els items 1-11 de 11
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Automated corneal endothelium image segmentation in the presence of cornea guttata via convolutional neural networks - 115110H
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2020)
Text en actes de congrés
Accés restringit per política de l'editorialAutomated cell counting in in-vivo specular microscopy images is challenging, especially in situations where single-cell segmentation methods fail due to pathological conditions. This work aims to obtain reliable cell ... -
Codificación de la función de fase de una lente compuesta multifocal presentada por un modulador LCoS
(2009)
Comunicació de congrés
Accés restringit per política de l'editorial -
Corneal endothelium assessment in specular microscopy images with Fuchs’ dystrophy via deep regression of signed distance maps
(2023-01-01)
Article
Accés obertSpecular microscopy assessment of the human corneal endothelium (CE) in Fuchs’ dystrophy is challenging due to the presence of dark image regions called guttae. This paper proposes a UNet-based segmentation approach that ... -
Detection and removal of dust artifacts in retinal images via sparse-based inpainting
(2021-09)
Article
Accés obertDust particle artifacts are present in all imaging modalities but have more adverse consequences in medical images like retinal images. They could be mistaken as small lesions, such as microaneurysms. We propose a method ... -
Lente programable multifocal: Combinación coaxial y multieje
(2010)
Article
Accés obert -
Ophthalmic compensation of visual ametropia based on a programmable diffractive lens
(2013)
Text en actes de congrés
Accés restringit per política de l'editorial -
Optical implementation of multifocal programmable lens with single and multiple axes
(Institute of Physics (IOP), 2010)
Comunicació de congrés
Accés obertIn this work we analyse the generation of a diffractive optical element (DOE) consisting of a multifocal Fresnel lens by means of an LCoS (liquid cristal on silicon) spatial light modulator (SLM). The multifocal lens is ... -
Programmable diffractive lens for ophthalmic application
(2014-03-18)
Article
Accés obertPixelated liquid crystal displays have been widely used as spatial light modulators to implement programmable diffractive optical elements, particularly diffractive lenses. Many different applications of such components ... -
Skin color correction via convolutional neural networks in 3D fringe projection profilometry
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2021)
Comunicació de congrés
Accés restringit per política de l'editorialFringe Projection Profilometry (FPP) with Digital Light Projector technology is one of the most reliable 3D sensing techniques for biomedical applications. However, besides the fringe pattern images,often a color texture ... -
Toward and ophtalmic imaging system with extended depth of focus using the asymmetric phase mask
(Red Iberoamericana de Óptica (RIAO), 2019)
Comunicació de congrés
Accés restringit per política de l'editorialWe 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. -
Trade-off asymmetric profile for extended-depth-of-focus ocular lens
(2022-02-01)
Article
Accés obertWe explore the possibility of extending the depth of focus of an imaging lens with anasymmetric quartic phase-mask, while keeping the aberration within a relatively low level. Thiscan be intended, for instance, for ophthalmic ...
