Dr. Fernando Luis Rosa-González Profile

Dr. Fernando Luis Rosa-González

at Univ de La Laguna

SPIE Involvement:

Author

Publications (16)

Proceedings Article | 20 June 2024 Presentation + Paper

Considerations on the search of a fast non-iterative inverse discrete radon transform

Óscar Gómez-Cárdenes, José Gil Marichal-Hernández, Fernando Luis Rosa-González, Jung-Young Son, Rafael Pérez Jiménez

Proceedings Volume 13000, 130000K (2024) https://doi.org/10.1117/12.3021992

KEYWORDS: Inverse imaging problems, Inverse problem on medical image, Computational complexity theory, Radon transform

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SPIE Journal Paper | 29 September 2020

Three-dimensional multiscale discrete Radon and John transforms

José Manuel Rodríguez-Ramos, José Gil Marichal-Hernandez, Óscar Gómez-Cárdenes, Fernando Rosa González, Do Hyung Kim

OE, Vol. 59, Issue 09, 093104, (September 2020) https://doi.org/10.1117/12.10.1117/1.OE.59.9.093104

KEYWORDS: Transform theory, Radon, Radon transform, Optical engineering, Rutherfordium, Integral transforms, Fourier transforms, X-rays, Spherical lenses, 3D image processing

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Proceedings Article | 15 May 2014 Paper

Refocusing from a plenoptic camera within seconds on a mobile phone

Óscar Gómez-Cárdenes, José Marichal-Hernández, Fernando Rosa, Jonas Lüke, Juan José Fernández-Valdivia, José Rodríguez-Ramos

Proceedings Volume 9139, 913907 (2014) https://doi.org/10.1117/12.2053186

KEYWORDS: Neon, Tablets, Cameras, Cell phones, Transform theory, Optimization (mathematics), Galactic astronomy, Algorithm development, Radon transform, System on a chip

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SPIE Journal Paper | 3 July 2012

Fast approximate 4-D/3-D discrete radon transform for lightfield refocusing

Jose Marichal-Hernandez, Jonas Philipp Lüke, Fernando Rosa González, José Manuel Rodríguez-Ramos

JEI, Vol. 21, Issue 2, 023026, (July 2012) https://doi.org/10.1117/12.10.1117/1.JEI.21.2.023026

KEYWORDS: Radon transform, Sensors, Cameras, Photography, Algorithm development, Microlens, Binary data, Video acceleration, Video, Image processing

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Proceedings Article | 15 May 2012 Paper

Atmospherical wavefront phases using the plenoptic sensor (real data)

L. Rodríguez-Ramos, I. Montilla, J. P. Lüke, R. López, J. G. Marichal-Hernández, J. Trujillo-Sevilla, B. Femenía, M. López, J. J. Fernández-Valdivia, M. Puga, F. Rosa, J. M. Rodríguez-Ramos

Proceedings Volume 8384, 83840D (2012) https://doi.org/10.1117/12.923662

KEYWORDS: Sensors, Wavefronts, Telescopes, Sodium, Wavefront sensors, Turbulence, Adaptive optics, Microlens, Atmospheric sensing, Cameras

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Proceedings Article | 20 May 2011 Paper

3D imaging and wavefront sensing with a plenoptic objective

J. M. Rodríguez-Ramos, J. P. Lüke, R. López, J. G. Marichal-Hernández, I. Montilla, J. Trujillo-Sevilla, B. Femenía, M. Puga, M. López, J. J. Fernández-Valdivia, F. Rosa, C. Dominguez-Conde, J. C. Sanluis, L. F. Rodríguez-Ramos

Proceedings Volume 8043, 80430R (2011) https://doi.org/10.1117/12.883813

KEYWORDS: Microlens, Cameras, Sensors, Wavefronts, Microlens array, Telescopes, Adaptive optics, Calibration, Field programmable gate arrays, Wavefront sensors

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Proceedings Article | 2 February 2011 Paper

Fast approximate 4D:3D discrete radon transform, from light field to focal stack with O(N4) sums

José Marichal-Hernández, Jonas Lüke, Fernando Rosa, José Rodríguez-Ramos

Proceedings Volume 7871, 78710G (2011) https://doi.org/10.1117/12.872359

KEYWORDS: Sensors, Transform theory, Radon transform, Photography, Cameras, Algorithm development, Binary data, Image processing, Video processing, Lanthanum

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Proceedings Article | 11 July 2008 Paper

Real-time phase slopes calculations by correlations using FPGAs

J. Trujillo Sevilla, M. Valido, L. Rodríguez Ramos, E. Boemo, F. Rosa, J. Rodríguez Ramos

Proceedings Volume 7015, 70153B (2008) https://doi.org/10.1117/12.789492

KEYWORDS: Field programmable gate arrays, Wavefronts, Wavefront sensors, Algorithm development, Sensors, Image processing, Adaptive optics, Image sensors, Multiplexers, Optical correlators

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SPIE Journal Paper | 1 April 2007

Modal Fourier wavefront reconstruction using graphics processing units

José Marichal-Hernandez, José Rodríguez-Ramos, Fernando Rosa

JEI, Vol. 16, Issue 02, 023005, (April 2007) https://doi.org/10.1117/12.10.1117/1.2732379

KEYWORDS: Adaptive optics, Wavefront reconstruction, Wavefronts, Visualization, Reconstruction algorithms, Actuators, Binary data, Fourier transforms, Telescopes, Signal processing

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Proceedings Article | 27 June 2006 Paper

Modal Fourier wavefront reconstruction using graphics processing units

José Rodríguez-Ramos, José Marichal-Hernández, Fernando Rosa

Proceedings Volume 6272, 627215 (2006) https://doi.org/10.1117/12.670406

KEYWORDS: Adaptive optics, Wavefronts, Visualization, Reconstruction algorithms, Fourier transforms, Actuators, Binary data, Wavefront reconstruction, Telescopes, Signal processing

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Proceedings Article | 11 November 2004 Paper

Wavefront phase recovery using graphic processing units (GPUs)

Fernando Rosa, Jose Marichal-Hernandez, Jose Rodriguez-Ramos

Proceedings Volume 5572, (2004) https://doi.org/10.1117/12.564777

KEYWORDS: Wavefronts, Wavefront sensors, Telescopes, Sensors, Chemical elements, Visualization, Adaptive optics, Fourier transforms, Atmospheric optics, Computer programming

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Proceedings Article | 31 January 2001 Paper

Asymmetry factors: hemispheric backscattering to total scattering ratios and backscatter fractions retrieved from multiwavelength scattering coefficients

Helena Gonzalez Jorge, Fernando Rosa, John Ogren

Proceedings Volume 4168, (2001) https://doi.org/10.1117/12.413850

KEYWORDS: Backscatter, Scattering, Refractive index, Aerosols, Atmospheric particles, Statistical analysis, Mie scattering, Optical properties, Light scattering, Climatology

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Proceedings Article | 31 January 2001 Paper

Stratocumulus parameter retrieval using MODIS nighttime imagery: a theoretical approach

Juan Perez, Albano Gonzalez, Fernando Rosa, Felix Herrera, Dulce de la Cruz

Proceedings Volume 4168, (2001) https://doi.org/10.1117/12.413849

KEYWORDS: Clouds, MODIS, Satellites, Infrared radiation, Atmospheric modeling, Radiative transfer, Earth's atmosphere, Sensors, Data modeling, Atmospheric particles

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Proceedings Article | 16 August 2000 Paper

OSIRIS tunable imager and spectrograph

Jordi Cepa, Marta Aguiar-Gonzalez, Victor Gonzalez-Escalera, Jose Gonzalez-Serrano, Enrique Joven-Alvarez, Lorenzo Cano, Jose Rasilla, Luis Rodriguez-Ramos, J. Jesus Gonzalez, Francisco Cobos Duenas, Beatriz Sanchez, Carlos Tejada, Jonathan Bland-Hawthorn, Carmelo Militello, Fernando Rosa

Proceedings Volume 4008, (2000) https://doi.org/10.1117/12.395520

KEYWORDS: Imaging spectroscopy, Spectroscopes, Telescopes, Tunable filters, Sensors, Cameras, Image resolution, Image quality, Collimators, Collimation

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Proceedings Article | 14 December 1998 Paper

Discretization of effective droplet radius in order to extract stratocumulus cloud parameters from NOAA-AVHRR channel 3

Albano Gonzalez, Fernando Rosa, Felix Herrera, Juan Perez

Proceedings Volume 3495, (1998) https://doi.org/10.1117/12.332709

KEYWORDS: Clouds, Atmospheric optics, Atmospheric modeling, Channel projecting optics, Ocean optics, Infrared imaging, Infrared radiation, Radiative transfer, Satellites, Spherical lenses

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Proceedings Article | 14 December 1998 Paper

Method to estimate the emissivity from NOAA-AVHRR channel 3 in order to extract a distribution of effective droplet radius of stratocumulus clouds

Fernando Rosa, Felix Herrera, Juan Perez, Albano Gonzalez

Proceedings Volume 3495, (1998) https://doi.org/10.1117/12.332708

KEYWORDS: Clouds, Atmospheric modeling, Infrared imaging, Infrared radiation, Radiative transfer, Statistical analysis, Satellites

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Showing 5 of 16 publications

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