Dr. Ignasi Labastida Profile

Dr. Ignasi Labastida

at Universitat de Barcelona

SPIE Involvement:

Author

Publications (11)

SPIE Journal Paper | 1 November 2004

Wavefront reconstruction by adding modulation capabilities of two liquid crystal devices

Raul Tudela, Estela Martín-Badosa, Ignasi Juan Labastida, Santiago Vallmitjana, Arturo Carnicer

OE, Vol. 43, Issue 11, (November 2004) https://doi.org/10.1117/12.10.1117/1.1803551

KEYWORDS: Phase modulation, LCDs, Modulation, Phase shift keying, Holograms, Wavefronts, Modulators, 3D image reconstruction, Error analysis, Spatial light modulators

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Proceedings Article | 19 November 2003 Paper

On-line applet-based optics course for undergraduate students

Arturo Carnicer, Salvador Bosch, Josep Ferre, Ignacio Juvells, Ignasi Juan Labastida, Estela Martin-Badosa, J. de F. Moneo, Encarnacion Pleguezuelos, Raul Tudela, Santiago Vallmitjana

Proceedings Volume 4829, (2003) https://doi.org/10.1117/12.523640

KEYWORDS: Java, Optical design, Ray tracing, Dielectric filters, Far-field diffraction, Image processing, Physical phenomena, Optical instrument design, Eye, Human vision and color perception

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Proceedings Article | 19 November 2003 Paper

Full complex Fresnel holograms displayed on liquid crystal devices

Raul Tudela, Estela Martin-Badosa, Ignasi Juan Labastida, Encarnacion Pleguezuelos, Santiago Vallmitjana, Ignacio Juvells, Arturo Carnicer

Proceedings Volume 4829, (2003) https://doi.org/10.1117/12.524849

KEYWORDS: LCDs, Holograms, Modulation, Ferroelectric LCDs, Phase shift keying, Digital holography, Wavefronts, Reflectivity, Image processing, Image quality

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Proceedings Article | 10 November 2003 Paper

Reconstruction of Fresnel holograms using partial wavefront information

Raul Tudela, Estela Martin-Badosa, Ignasi Labastida, Santiago Vallmitjana, Arturo Carnicer

Proceedings Volume 5181, (2003) https://doi.org/10.1117/12.503701

KEYWORDS: LCDs, Holograms, Modulation, Phase modulation, Phase shift keying, Wavefronts, Error analysis, Modulators, Holography, Spatial light modulators

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Proceedings Article | 23 October 2003 Paper

Generalization of the Jared-Ennis method to complex transmittance objects for the generation of synthetic discriminant function filters

Encarnacion Pleguezuelos, Ignasi Labastida, Santiago Vallmitjana, Arturo Carnicer

Proceedings Volume 5202, (2003) https://doi.org/10.1117/12.503705

KEYWORDS: Image filtering, Modulation, LCDs, Phase shift keying, Optical correlators, Nonlinear filtering, Transmittance, Optical filters, Phase only filters, Spatial light modulators

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Proceedings Article | 30 November 2001 Paper

Optical correlation from projections of 3D objects

Santiago Vallmitjana, Ignacio Prades Juvells, Arturo Carnicer, Mario Montes-Usategui, Estela Martin-Badosa, Ignasi Juan Labastida, F. Rodriguez-Miguel, R. Tudela

Proceedings Volume 10302, 1030209 (2001) https://doi.org/10.1117/12.449688

KEYWORDS: 3D acquisition, Optical correlators, Image processing, 3D image processing, Image filtering, 3D scanning, 3D modeling, Spatial light modulators, Object recognition, Target detection

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Proceedings Article | 24 May 2000 Paper

On-axis joint transform correlation based on the interferometric acquisition of the output plane

Ignasi Juan Labastida, Arturo Carnicer, Ignacio Juvells, Santiago Vallmitjana

Proceedings Volume 4089, (2000) https://doi.org/10.1117/12.386859

KEYWORDS: LCDs, Joint transforms, Interferometry, Binary data, Modulation, Modulators, Phase shifts, Fourier transforms, CCD cameras, Phase shift keying

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Proceedings Article | 2 June 1999 Open Access

Characterization of VGA liquid crystal panels with partial phase-only modulation: application to pattern recognition

S. Vallmitjana, Ignasi Juan Labastida, Estela Martin-Badosa, Arturo Carnicer, Ignacio Juvells

Proceedings Volume 10296, 1029605 (1999) https://doi.org/10.1117/12.365915

KEYWORDS: Liquid crystals, Phase shift keying, Modulation, Pattern recognition, LCDs, Optical correlators, Phase measurement, Optical filters, Optoelectronics, Data processing

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Proceedings Article | 2 July 1998 Paper

Interferometric characterization of GRIN lenses for ophthalmic uses

J. de F. Moneo, Ignacio Juvells, Santiago Vallmitjana, Salvador Bosch, Arturo Carnicer, Ignasi Juan Labastida, Julio Perez-Tudela

Proceedings Volume 3405, (1998) https://doi.org/10.1117/12.312729

KEYWORDS: Interferometry, Diffusion, Computer simulations, Lenses, Refractive index, Ion exchange, GRIN lenses, Spherical lenses, Frame grabbers, Charge-coupled devices

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Proceedings Article | 2 July 1998 Paper

Ray tracing for ophthalmic optics: specific developments for GRIN materials

J. de F. Moneo, Ignacio Juvells, Santiago Vallmitjana, Salvador Bosch, Arturo Carnicer, Ignasi Juan Labastida, Julio Perez-Tudela

Proceedings Volume 3405, (1998) https://doi.org/10.1117/12.312730

KEYWORDS: GRIN lenses, Monochromatic aberrations, Ray tracing, Eye, Refractive index, Lens design, Ophthalmic optics, Image acquisition, Software, Glasses

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Proceedings Article | 22 May 1998 Paper

Multiple-image control with an 8-bit frame grabber: use in a Vander Lugt correlator

Ignasi Juan Labastida, Arturo Carnicer, Estela Martin-Badosa, Santiago Vallmitjana, Ignacio Juvells

Proceedings Volume 3490, (1998) https://doi.org/10.1117/12.308918

KEYWORDS: LCDs, Frame grabbers, Optical correlators, Electronics, Image filtering, Control systems, Satellites, Phase modulation, RGB color model, Diffraction

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Showing 5 of 11 publications

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