Dr. Julián Espinosa Profile

Dr. Julián Espinosa

at Univ de Alicante

SPIE Involvement:

Author

Publications (10)

Proceedings Article | 1 April 2020 Paper

Optimizing rectangular-shaped object tracking with subpixel resolution

Belen Ferrer, Jorge Perez, David Mas, Julian Espinosa

Proc. SPIE. 11353, Optics, Photonics and Digital Technologies for Imaging Applications VI

KEYWORDS: MATLAB, Super resolution, Cameras, Sensors, Error analysis, Physics, Numerical simulations, Image sensors, Optical tracking, Charge-coupled devices

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Proceedings Article | 1 April 2020 Paper

High-speed video analysis of spontaneous and reflex to light blinking

Julián Espinosa, Marina Martínez, Jorge Perez, Begoña Domenech, Carmen Vazquez, David Mas

Proc. SPIE. 11353, Optics, Photonics and Digital Technologies for Imaging Applications VI

KEYWORDS: Eye, Light emitting diodes, Statistical analysis, Imaging systems, Cameras, Video, Physics, Electromyography, High speed cameras, Video processing

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Proceedings Article | 8 October 2015

Innovative education networking aimed at multimedia tools for geometrical optics learning

P. García-Martínez, C. Zapata-Rodríguez, C. Ferreira, I. Fernández, D. Pastor, M. Nasenpour, I. Moreno, M. M. Sánchez-López, J. Espinosa, D. Mas, J. Miret

Proc. SPIE. 9793, Education and Training in Optics and Photonics: ETOP 2015

KEYWORDS: Mirrors, Prisms, Visualization, Lenses, Video, Electroluminescence, Refraction, Ray tracing, Multimedia, Geometrical optics

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Proceedings Article | 8 May 2012 Paper

Propagation, structural similarity, and image quality

Jorge Pérez, David Mas, Julián Espinosa, Carmen Vázquez, Carlos Illueca

Proc. SPIE. 8427, Biophotonics: Photonic Solutions for Better Health Care III

KEYWORDS: Diffraction, Point spread functions, Eye, Visualization, Surgery, Retina, Wavefronts, Image quality, Modulation transfer functions, Geometrical optics

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Proceedings Article | 8 May 2012 Paper

Corneal topography reinterpretation through separate analysis of the projected rings

Julian Espinosa, Ana Roig, David Mas, Consuelo Hernández, Carlos Illueca

Proc. SPIE. 8427, Biophotonics: Photonic Solutions for Better Health Care III

KEYWORDS: Monochromatic aberrations, Eye, Cornea, Reflection, Cameras, Calibration, Image processing, Video, Data processing, Data conversion

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Proceedings Article | 2 May 2012 Paper

High speed image techniques for construction safety net monitoring in outdoor conditions

Belen Ferrer, Juan Pomares, Ramón Irles, Julian Espinosa, David Mas

Proc. SPIE. 8436, Optics, Photonics, and Digital Technologies for Multimedia Applications II

KEYWORDS: Safety, Injuries, Detection and tracking algorithms, Cameras, Image processing, Digital filtering, Hough transforms, High speed cameras, Image filtering, Motion analysis

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Proceedings Article | 1 May 2012 Paper

Use of subpixel techniques in pocket cameras to measure vibrations and displacements

David Mas, Julián Espinosa, Ana Roig, Belén Ferrer, Jorge Pérez

Proc. SPIE. 8436, Optics, Photonics, and Digital Technologies for Multimedia Applications II

KEYWORDS: Target detection, Cameras, Sensors, Image processing, Video, Error analysis, Image resolution, Adaptive optics, Optical resolution, Spatial resolution

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SPIE Journal Paper | 1 March 2010

Optical surface reconstruction technique through combination of zonal and modal fitting

Julián Espinosa, David Mas, Jorge Pérez, Carlos Illueca

JBO Vol. 15 Issue 02

KEYWORDS: Zernike polynomials, Cornea, Biomedical optics, Matrices, Optical spheres, Wavefronts, Cameras, Charge-coupled devices, Error analysis, Measurement devices

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SPIE Journal Paper | 1 July 2009

Corneal primary aberrations compensation by oblique light incidence

Julian Espinosa, David Mas, Henryk Kasprzak

JBO Vol. 14 Issue 04

KEYWORDS: Monochromatic aberrations, Eye, Point spread functions, Crystals, Eye models, Cornea, Geometrical optics, Wavefronts, Biomedical optics, Retina

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Proceedings Article | 24 September 2005 Paper

Determination of chromatic aberration in the human eye by means of Fresnel propagation theory

David Mas, Jorge Perez, Carlos Illueca, Julian Espinosa, Consuelo Hernandez, Carmen Vazquez, Juan Miret

Proc. SPIE. 5959, Medical Imaging

KEYWORDS: Chromatic aberrations, Refractive index, Eye, Cornea, Crystals, Colorimetry, Image quality, Wave propagation, Refraction, Eye models

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Showing 5 of 10 publications

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