Mr. Rafael M. Navarro Profile

Rafael M. Navarro

at Instituto de Óptica "Daza de Valdés"

SPIE Involvement:

Author

Publications (30)

SPIE Journal Paper | 1 July 2007 Open Access

Double-pass versus aberrometric modulation transfer function in green light

P. Rodriguez, Rafael Navarro

JBO, Vol. 12, Issue 04, 044018, (July 2007) https://doi.org/10.1117/12.10.1117/1.2756539

KEYWORDS: Modulation transfer functions, Scattering, Eye, Light scattering, Diffusers, Laser scattering, Wavefront aberrations, Cameras, Eye models, Point spread functions

Read Abstract +

DOWNLOAD PAPER

Proceedings Article | 20 April 2006 Paper

Integral modeling of human eyes: from anatomy to visual response

Rafael Navarro

Proceedings Volume 6158, 61580T (2006) https://doi.org/10.1117/12.676074

KEYWORDS: Eye models, Visual process modeling, Eye, Visualization, Data modeling, 3D modeling, Cornea, Visual optics, Monochromatic aberrations, Geometrical optics

Read Abstract +

Proceedings Article | 21 October 2004 Paper

Efficient numerical modeling of the cornea, and applications

L. Gonzalez, Rafael Navarro, J. Hdez-Matamoros

Proceedings Volume 5622, (2004) https://doi.org/10.1117/12.590870

KEYWORDS: Cornea, 3D modeling, Eye, Eye models, Data modeling, Osmium, Zernike polynomials, Monochromatic aberrations, 3D metrology, Numerical modeling

Read Abstract +

Proceedings Article | 21 October 2004 Paper

Ray tracing in the human eye: measurement and modeling of optical aberrations

Rafael Navarro, P. Rodriguez, L. Gonzalez, J. Aporta, J. Hdez-Matamoros

Proceedings Volume 5622, (2004) https://doi.org/10.1117/12.590723

KEYWORDS: Eye models, Eye, Ray tracing, Data modeling, Geometrical optics, Surgery, Performance modeling, Cameras, Optical aberrations, Optical design

Read Abstract +

Proceedings Article | 19 November 2003 Paper

Predicting visual acuity from measured ocular aberrations

Rafael Navarro, Oscar Nestares, Beatriz Antona, José Hernández

Proceedings Volume 4829, (2003) https://doi.org/10.1117/12.527533

KEYWORDS: Visualization, Visual process modeling, Visual optics, Eye models, Eye, Optical pattern recognition, Optical aberrations, Pattern recognition, Data modeling, Visual system

Read Abstract +

Proceedings Article | 17 June 2003 Paper

Nonlinear image representation with statistical independent features: efficient implementation and applications

Roberto Valerio, Rafael Navarro

Proceedings Volume 5007, (2003) https://doi.org/10.1117/12.477768

KEYWORDS: Wavelets, Neurons, Statistical modeling, Image analysis, Transform theory, Image processing, Image compression, Linear filtering, Sensors, Visual process modeling

Read Abstract +

Proceedings Article | 16 July 2002 Paper

Measurement and correction of optical aberrations in human eyes

Rafael Fonolla Navarro

Proceedings Volume 4707, (2002) https://doi.org/10.1117/12.475581

KEYWORDS: Eye, Adaptive optics, Wavefronts, Surgery, Wavefront sensors, Optical aberrations, Lenses, Monochromatic aberrations, Optics manufacturing, Ray tracing

Read Abstract +

Proceedings Article | 4 May 2001 Paper

Objective measurement of the optical image quality in the human eye

Rafael Navarro

Proceedings Volume 4241, (2001) https://doi.org/10.1117/12.431512

KEYWORDS: Eye, Point spread functions, Modulation transfer functions, Image quality, Adaptive optics, Visual optics, Stars, Optics manufacturing, Visualization, Wavefronts

Read Abstract +

Proceedings Article | 23 January 2001 Paper

Fire growth monitoring using Flasse and Ceccato algorithm in south Spain

Rafael Navarro, Silvia Escuin, Pilar Fernandez

Proceedings Volume 4171, (2001) https://doi.org/10.1117/12.413937

KEYWORDS: Algorithm development, Satellites, Detection and tracking algorithms, Vegetation, Sensors, Temporal resolution, Remote sensing, Ecosystems, Image processing, Spatial resolution

Read Abstract +

Proceedings Article | 9 June 2000 Paper

Vigilance system in rails for train hot point temperatures during circulation

Francisco Meca Meca, Francisco Rodriguez Sanchez, Manuel Mazo Quintas, Juan Garcia Dominguez, Rafael Fonolla Navarro, Eduardo Sebastian Martinez, Jose Jimenez Calvo, Diego Lillo Rodriguez, Miguel Garcia Garrido

Proceedings Volume 3995, (2000) https://doi.org/10.1117/12.387812

KEYWORDS: Sensors, Temperature metrology, Chemical elements, Telecommunications, Environmental sensing, Camera shutters, Infrared sensors, Infrared radiation, Safety, Statistical analysis

Read Abstract +

SPIE Journal Paper | 1 June 2000

Automatic enhancement of noisy image sequences through local spatiotemporal spectrum analysis

Oscar Nestares, Carlos Miravet, Javier Santamaria, Rafael Fonolla Navarro

OE, Vol. 39, Issue 06, (June 2000) https://doi.org/10.1117/12.10.1117/1.602518

KEYWORDS: Image enhancement, Image segmentation, Signal to noise ratio, Motion estimation, Optical flow, Optical engineering, Gaussian filters, Optical filters, Optical spheres, Infrared imaging

Proceedings Article | 19 July 1999 Paper

Paper formation analysis using the power spectrum of light transmission images

Mouade Bouydain, Jose Colom, Rafael Fonolla Navarro, Josep Pladellorens

Proceedings Volume 3749, (1999) https://doi.org/10.1117/12.354962

KEYWORDS: Optical fibers, Image analysis, Fourier transforms, Optical imaging, Manufacturing, Opacity, Radiography, Electron beams, Safety, Mathematics

Read Abstract +

Proceedings Article | 19 July 1999 Paper

Performance of the human eye as a wide-angle optical system

Rafael Fonolla Navarro

Proceedings Volume 3749, (1999) https://doi.org/10.1117/12.354856

KEYWORDS: Eye, Adaptive optics, Point spread functions, Image quality, Data modeling, Visualization, Modulation transfer functions, Visual optics, Eye models, Monochromatic aberrations

Read Abstract +

Proceedings Article | 6 July 1999 Paper

Automatic quality control of textile webs by image processing

Maria Millan Garcia-Verela, Jaume Escofet, Hector Abril, Rafael Fonolla Navarro, Yezid Torres Moreno

Proceedings Volume 3572, (1999) https://doi.org/10.1117/12.358397

KEYWORDS: Image processing, Image segmentation, Image quality, Automatic control, Resistance, Visualization, Defect detection, Inspection, Human vision and color perception, Image compression

Read Abstract +

Proceedings Article | 6 July 1999 Paper

Optical architectures for real-time image processing and pattern recognition

Maria Yzuel, Joaquin Campos, Rafael Fonolla Navarro, Esmail Ahouzi, I. Moreno, Asticio Vargas, Octavio Lopez-Coronado

Proceedings Volume 3572, (1999) https://doi.org/10.1117/12.358341

KEYWORDS: Spatial light modulators, Phase only filters, Modulation, Image processing, Diffraction, Phase shift keying, Computer generated holography, Optical correlators, Optical filters, Amplitude modulation

Read Abstract +

Proceedings Article | 19 May 1999 Paper

Probabilistic multichannel optical flow analysis based on a multipurpose visual representation of image sequences

Oscar Nestares, Rafael Fonolla Navarro

Proceedings Volume 3644, (1999) https://doi.org/10.1117/12.348479

KEYWORDS: Optical flow, Visualization, Motion models, Motion estimation, Linear filtering, Image visualization, Error analysis, Visual analytics, Image segmentation, Mathematical modeling

Read Abstract +

Proceedings Article | 17 May 1999 Paper

Automatic segmentation of low-visibility moving objects through energy analyis of the local 3D spectrum

Oscar Nestares, Carlos Miravet, Javier Santamaria, Rafael Fonolla Navarro

Proceedings Volume 3642, (1999) https://doi.org/10.1117/12.348422

KEYWORDS: Image segmentation, Linear filtering, Electronic filtering, Visibility, Image enhancement, Optical filters, Visualization, Optical spheres, Motion analysis, Gaussian filters

Read Abstract +

SPIE Journal Paper | 1 November 1998

Automatic method based on image analysis for pilling evaluation in fabrics

Hector Abril, Maria Millan Garcia-Verela, Yezid Torres Moreno, Rafael Fonolla Navarro

OE, Vol. 37, Issue 11, (November 1998) https://doi.org/10.1117/12.10.1117/1.601881

KEYWORDS: Image analysis, Image segmentation, Image filtering, Image processing, Fourier transforms, Visualization, Astatine, Optical engineering, Photography, Solids

SPIE Journal Paper | 1 August 1998

Detection of local defects in textile webs using Gabor filters

Jaume Escofet, Rafael Fonolla Navarro, Maria Millan Garcia-Verela, Josep Pladellorens

OE, Vol. 37, Issue 08, (August 1998) https://doi.org/10.1117/12.10.1117/1.601751

KEYWORDS: Defect detection, Image filtering, Inspection, Image segmentation, Optical engineering, Visualization, Binary data, Prototyping, Image processing, Wavelets

Proceedings Article | 17 July 1998 Paper

Duality between foveatization and multiscale local spectrum estimation

Rafael Fonolla Navarro, Javier Portilla, Antonio Tabernero

Proceedings Volume 3299, (1998) https://doi.org/10.1117/12.320121

KEYWORDS: Optical filters, Linear filtering, Image filtering, Fourier transforms, Electronic filtering, Prototyping, Biological research, Visual system, Visualization, Mirrors

Read Abstract +

SPIE Journal Paper | 1 January 1998

Efficient spatial-domain implementation of a multiscale image representation based on Gabor functions

Oscar Nestares, Rafael Fonolla Navarro, Javier Portilla, Antonio Tabernero

JEI, Vol. 7, Issue 01, (January 1998) https://doi.org/10.1117/12.10.1117/1.482638

KEYWORDS: Image filtering, Linear filtering, Signal to noise ratio, VHF band, Convolution, Wavelet transforms, Image compression, Visualization, Image enhancement, Wavelets

Proceedings Article | 19 August 1997 Paper

Image segmentation based on a Gaussian model applied to pilling evaluation in fabrics

Hector Abril, Maria Millan Garcia-Verela, Yezid Torres Moreno, Rafael Fonolla Navarro

Proceedings Volume 3101, (1997) https://doi.org/10.1117/12.281290

KEYWORDS: Image filtering, Image segmentation, Image processing, Binary data, Photography, Denoising, Image analysis, Fourier transforms, Visualization, Inspection

Read Abstract +

Proceedings Article | 26 August 1996 Paper

Detection of local defects in textile webs using Gabor filters

Jaume Escofet, Rafael Fonolla Navarro, Maria Millan Garcia-Verela, Josep Pladellorens

Proceedings Volume 2785, (1996) https://doi.org/10.1117/12.248537

KEYWORDS: Image filtering, Defect detection, Inspection, Image segmentation, Defect inspection, Visual process modeling, Image analysis, Image processing, Fourier transforms, Convolution

Read Abstract +

Proceedings Article | 21 August 1996 Paper

Pilling evaluation in fabrics by digital image processing

Hector Abril, Maria Millan Garcia-Verela, Rafael Fonolla Navarro

Proceedings Volume 2786, (1996) https://doi.org/10.1117/12.248577

KEYWORDS: Image segmentation, Fourier transforms, Image processing, Image filtering, Gaussian filters, Digital image processing, Photography, Aluminum, Optical fibers, Visualization

Read Abstract +

SPIE Journal Paper | 1 August 1996

Texture synthesis-by-analysis method based on a multiscale early-vision model

Javier Portilla, Rafael Fonolla Navarro, Oscar Nestares, Antonio Tabernero

OE, Vol. 35, Issue 08, (August 1996) https://doi.org/10.1117/12.10.1117/1.600814

KEYWORDS: Visualization, Autoregressive models, Visual process modeling, Interference (communication), Image filtering, Gaussian filters, Electronic filtering, Optical engineering, Optical filters, Modulation

Proceedings Article | 22 April 1996 Paper

Robust method for texture synthesis-by-analysis based on a multiscale Gabor scheme

Rafael Fonolla Navarro, Javier Portilla

Proceedings Volume 2657, (1996) https://doi.org/10.1117/12.238704

KEYWORDS: Autoregressive models, Visualization, Optical filters, Visual process modeling, Linear filtering, Image filtering, Statistical modeling, Interference (communication), Electronic filtering, Image compression

Read Abstract +

Proceedings Article | 13 March 1996 Paper

Segmentation of electron microscopy images through Gabor texture descriptors

Rafael Fonolla Navarro, Oscar Nestares

Proceedings Volume 2666, (1996) https://doi.org/10.1117/12.234747

KEYWORDS: Image segmentation, Crystals, Linear filtering, Electron microscopy, Image filtering, Photomicroscopy, Biological research, Spatial filters, Image processing algorithms and systems, Digital filtering

Read Abstract +

Proceedings Article | 5 February 1996 Paper

Application of the Gabor multiscale decomposition of an image to pattern recognition

Asticio Vargas, Juan Campos Rubio, Rafael Fonolla Navarro

Proceedings Volume 2730, (1996) https://doi.org/10.1117/12.231032

KEYWORDS: Pattern recognition, Electronic filtering, Phase only filters, Image filtering, Filtering (signal processing), Silicon, Physics, Optical pattern recognition, Lanthanum, Wavelet transforms

Read Abstract +

Proceedings Article | 10 January 1996 Paper

Foveal cone mosaic imaged in vivo by an objective high-resolution technique

Susana Marcos, Rafael Fonolla Navarro, Pablo Artal

Proceedings Volume 2632, (1996) https://doi.org/10.1117/12.229572

KEYWORDS: Cones, Eye, Spatial frequencies, In vivo imaging, Speckle pattern, Speckle interferometry, Distance measurement, Diffraction, Retina, Image resolution

Read Abstract +

SPIE Journal Paper | 1 March 1995

Through focus image quality of eyes implanted with monofocal and multifocal intraocular lenses

Pablo Artal, Susana Marcos, Rafael Fonolla Navarro, Ismael Miranda, Manuel Ferro

OE, Vol. 34, Issue 03, (March 1995) https://doi.org/10.1117/12.10.1117/12.191818

KEYWORDS: Image quality, Modulation transfer functions, Monochromatic aberrations, Eye, Lenses, Modulation, Intraocular lenses, Optical testing, Digital imaging, Spatial frequencies

Read Abstract +

Showing 5 of 30 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years