Dr. Olga M. Conde Profile

Dr. Olga M. Conde

Associate Professor at University of Cantabria

Publications (75)

Proceedings Article | 11 August 2023 Paper

Comparison between optical coherence tomography and phase shifting profilometry for surface estimation

José Gutiérrez-Gutiérrez, Verónica Mieites, Arturo Pardo, José López-Higuera, Olga Conde

Proceedings Volume 12627, 126271P (2023) https://doi.org/10.1117/12.2670564

KEYWORDS: Optical coherence tomography, Optical surfaces, Biological samples, Phase shifting, Muscles, Shadows, Statistical analysis, Spatial frequencies, Projection systems, Imaging systems

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Proceedings Article | 11 August 2023 Paper

Wide-field optical properties estimation of whole limbs in muscle dystrophy murine models via SFDI: a case study

Verónica Mieites, José Gutiérrez-Gutiérrez, Arturo Pardo, Xavier Suárez-Calvet, José Miguel López-Higuera, Jordi Díaz-Manera, Olga Conde

Proceedings Volume 12627, 1262731 (2023) https://doi.org/10.1117/12.2670573

KEYWORDS: Optical properties, Diffuse reflectance spectroscopy, Biological samples, Monte Carlo methods, Absorption, Scattering, Reflectivity, Tissues, Statistical analysis, Spatial frequencies

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Proceedings Article | 11 August 2023 Paper

Colorimetric fusion of attenuation and birefringence in OCT signatures: a screening tool for evaluating muscular degradation in alpha-sarcoglican deficit murine models

Verónica Mieites, Arturo Pardo, José Gutiérrez-Gutiérrez, Xavier Suárez-Calvet, José Miguel López-Higuera, Jordi Díaz-Manera, Olga Conde

Proceedings Volume 12632, 1263211 (2023) https://doi.org/10.1117/12.2670555

KEYWORDS: RGB color model, Birefringence, Muscles, Attenuation, Optical coherence tomography, Visualization, Biological samples, Tissues, Signal attenuation, Mie scattering

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Proceedings Article | 13 April 2020 Paper

Fusion of OCT and hyperspectral imaging for tissue diagnosis and assessment

José Gutiérrez, Eusebio Real, Arturo Pardo, José López-Higuera, Olga Conde

Proceedings Volume 11362, 1136207 (2020) https://doi.org/10.1117/12.2555058

KEYWORDS: Optical coherence tomography, Signal attenuation, Tissues, Collagen, Tissue optics, Chromophores, Hyperspectral imaging, Short wave infrared radiation, Aorta, Imaging systems

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Proceedings Article | 1 April 2020 Presentation + Paper

Automated surgical margin assessment in breast conserving surgery using SFDI with ensembles of self-confident deep convolutional networks

Arturo Pardo, José Gutiérrez-Gutiérrez, Samuel Streeter, Benjamin Maloney, José López-Higuera, Brian Pogue, Olga Conde

Proceedings Volume 11362, 113620I (2020) https://doi.org/10.1117/12.2554965

KEYWORDS: Tissues, Neural networks, Connective tissue, Diagnostics, Breast, Surgery, Data modeling, Spatial frequencies, Pathology, Network architectures

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Proceedings Article | 21 February 2020 Presentation + Paper

Scatter signatures in SFDI data enable breast surgical margin delineation via ensemble learning

Arturo Pardo, Samuel Streeter, Benjamin Maloney, José López-Higuera, Brian Pogue, Olga Conde

Proceedings Volume 11253, 112530K (2020) https://doi.org/10.1117/12.2546945

KEYWORDS: Diagnostics, Tissues, Neural networks, Connective tissue, Image segmentation, Breast, Pathology, Spatial resolution, Spatial frequencies, Systems modeling

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Proceedings Article | 19 February 2020 Presentation + Paper

Affinity-based color enhancement methods for contrast enhancement in hyperspectral and multimodal imaging

Arturo Pardo, José Gutiérrez-Gutiérrez, José López-Higuera, Brian Pogue, Olga Conde

Proceedings Volume 11222, 1122208 (2020) https://doi.org/10.1117/12.2546961

KEYWORDS: Image enhancement, Hyperspectral imaging, Surgery, Imaging systems, Chromophores, Multimodal imaging, RGB color model, Principal component analysis, Imaging devices

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Proceedings Article | 14 October 2019 Paper

ROTDR signal enhancement via deep convolutional denoising autoencoders trained with domain randomization

I. Laarossi, A. Pardo Franco, O. M. Conde, M. A. Quintela, José Miguel López-Higuera

Proceedings Volume 11199, 111993N (2019) https://doi.org/10.1117/12.2540012

KEYWORDS: Raman spectroscopy, Digital filtering, Signal to noise ratio, Sensors, Spatial resolution, Denoising, Temperature sensors, Electronic filtering, Signal attenuation

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Proceedings Article | 19 July 2019 Paper

Depth-resolved attenuation coefficient estimation for skin cancer assessment with optical coherence tomography

Eusebio Real, Gema Pérez Paredes, José López Higuera, Olga Conde

Proceedings Volume 11078, 1107812 (2019) https://doi.org/10.1117/12.2527255

KEYWORDS: Optical coherence tomography, Tissues, Signal attenuation, Skin, Skin cancer, Melanoma, Scattering, Image segmentation, Pathology, Natural surfaces

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Proceedings Article | 11 July 2019 Paper

Deep variational autoencoders for breast cancer tissue modeling and synthesis in SFDI

Arturo Pardo, José López-Higuera, Brian Pogue, Olga Conde

Proceedings Volume 11074, 110741G (2019) https://doi.org/10.1117/12.2527142

KEYWORDS: Tissues, Pathology, Optical properties, Breast cancer, Breast, Neural networks, Spatial frequencies, Tissue optics, Nonlinear optics

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Proceedings Article | 26 February 2019 Presentation + Paper

Automatic pigmented lesion segmentation through a dermoscopy-guided OCT approach for early diagnosis

Cristina L. Sarachaga, Sergio Lage, Maria Celia Morales, Ma Dolores Boyano, Aintzane Asumendi, Estibaliz Garrote, Olga Conde

Proceedings Volume 10851, 108510K (2019) https://doi.org/10.1117/12.2508002

KEYWORDS: Optical coherence tomography, Image segmentation, Image processing, Melanoma, Calibration, Machine learning, Image classification

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Proceedings Article | 28 July 2017 Paper

Automated skin lesion segmentation with kernel density estimation

A. Pardo, E. Real, G. Fernandez-Barreras, F. Madruga, J. López-Higuera, O. Conde

Proceedings Volume 10411, 104110P (2017) https://doi.org/10.1117/12.2283038

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Proceedings Article | 28 July 2017 Paper

OCT inspection of degenerative and rheumatic tendinous cords

Eusebio Real, José Revuelta, Alejandro Pontón, Marta Calvo-Díez, José López-Higuera, Olga Conde

Proceedings Volume 10411, 104110W (2017) https://doi.org/10.1117/12.2283039

KEYWORDS: Optical coherence tomography, Inspection

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Proceedings Article | 17 February 2017 Paper

Collagen birefringence assessment in heart chordae tendineae through PS-OCT

Eusebio Real, José Revuelta, Nieves González-Vargas, Alejandro Pontón, Marta Calvo-Díez, José López-Higuera, Olga Conde

Proceedings Volume 10053, 1005334 (2017) https://doi.org/10.1117/12.2254303

KEYWORDS: Collagen, Birefringence, Heart, Optical coherence tomography, Tissues, Image segmentation, Surgery, Polarization, Tomography, Refractive index

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Proceedings Article | 9 July 2015 Paper

Iterative Otsu's method for OCT improved delineation in the aorta wall

Daniel Alonso, Eusebio Real, José Val-Bernal, José Revuelta, Alejandro Pontón, Marta Calvo Díez, Marta Mayorga, José López-Higuera, Olga Conde

Proceedings Volume 9541, 95411A (2015) https://doi.org/10.1117/12.2183720

KEYWORDS: Optical coherence tomography, Image processing, Tissues, Signal to noise ratio, Image segmentation, Image filtering, Arteries, Digital filtering, Surgery, Collagen

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Proceedings Article | 4 March 2015 Paper

Multispectral reflectance enhancement for breast cancer visualization in the operating room

Gaspar Fernandez-Barreras, Eusebio Real, Ashley Laughney, Venkataramanan Krishnaswamy, Keith Paulsen, José López-Higuera, Brian Pogue, Olga Conde

Proceedings Volume 9311, 931106 (2015) https://doi.org/10.1117/12.2078774

KEYWORDS: Tissues, Reflectivity, Scattering, Tumors, Breast, Visualization, Surgery, Image enhancement, Absorption, Breast cancer

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Proceedings Article | 2 March 2015 Paper

Enhanced delineation of degradation in aortic walls through OCT

Eusebio Real, José Fernando Val-Bernal, José Revuelta, Alejandro Pontón, Marta Calvo Díez, Marta Mayorga, José López-Higuera, Olga Conde

Proceedings Volume 9312, 931233 (2015) https://doi.org/10.1117/12.2078898

KEYWORDS: Optical coherence tomography, Image processing, Signal to noise ratio, Collagen, Arteries, Tissues, Image filtering, Surgery, Optical fibers, Tissue optics

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Proceedings Article | 2 June 2014 Paper

OCT assessment of aortic wall degradation for surgical guidance

E. Real, J. Val-Bernal, A. Pontón, M. Calvo Díez, M. Mayorga, J. Revuelta, J. López-Higuera, O. Conde

Proceedings Volume 9157, 91575H (2014) https://doi.org/10.1117/12.2059818

KEYWORDS: Optical coherence tomography, Tissues, Arteries, Image segmentation, Reflectivity, Surgery, Wavelets, Image processing algorithms and systems, Cardiovascular surgery, Tissue optics

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Proceedings Article | 2 June 2014 Paper

Species discrimination in plasma welding spectra by means of principal and independent component analysis

E. Real, J. Mirapeix, O. Conde, R. Ruiz-Lombera, A. Cobo, J. Lopez-Higuera

Proceedings Volume 9157, 91570F (2014) https://doi.org/10.1117/12.2054722

KEYWORDS: Independent component analysis, Plasma, Principal component analysis, Iron, Laser induced breakdown spectroscopy, Diagnostics, Spectroscopy, Optical fibers, Argon, Emission spectroscopy

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Proceedings Article | 8 May 2014 Paper

Identification of vessel wall anomalies in thoracic aortic aneurysms through optical coherence tomography and gradient-based strategies

Alma Eguizabal, Eusebio Real, Alejandro Pontón, Marta Calvo Diez, J. Fernando Val-Bernal, Marta Mayorga, José Revuelta, José López-Higuera, Olga Conde

Proceedings Volume 9129, 912943 (2014) https://doi.org/10.1117/12.2051397

KEYWORDS: Optical coherence tomography, Tissues, Image processing, Natural surfaces, Edge detection, Tissue optics, Reflectivity, Arteries, Sensors, Visualization

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SPIE Journal Paper | 4 December 2013 Open Access

Optical coherence tomography assessment of vessel wall degradation in thoracic aortic aneurysms

Marta Mayorga, José Revuelta, José López-Higuera, Olga Conde, Eusebio Real, Alma Eguizabal, Alejandro Pontón, Marta Diez, Jose Val-Bernal

JBO, Vol. 18, Issue 12, 126003, (December 2013) https://doi.org/10.1117/12.10.1117/1.JBO.18.12.126003

KEYWORDS: Optical coherence tomography, Tissues, Backscatter, Reflectivity, Interfaces, Statistical analysis, Signal attenuation, Natural surfaces, Cardiovascular surgery, Surgery

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Proceedings Article | 18 June 2013 Paper

Optical coherence tomography assessment of vessel wall degradation in aneurysmatic thoracic aortas

Eusebio Real, Alma Eguizabal, Alejandro Pontón, J. Fernando Val-Bernal, Marta Mayorga, José Revuelta, José López-Higuera, Olga Conde

Proceedings Volume 8802, 88020G (2013) https://doi.org/10.1117/12.2032592

KEYWORDS: Optical coherence tomography, Tissues, Backscatter, Reflectivity, Interfaces, Natural surfaces, Imaging systems, Biomedical optics, Coherence (optics), Optical properties

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Proceedings Article | 21 February 2013 Paper

Linear classifier and textural analysis of optical scattering images for tumor classification during breast cancer extraction

Alma Eguizabal, Ashley Laughney, Pilar Beatriz Garcia Allende, Venkataramanan Krishnaswamy, Wendy Wells, Keith Paulsen, Brian Pogue, José López-Higuera, Olga Conde

Proceedings Volume 8592, 85920E (2013) https://doi.org/10.1117/12.2003814

KEYWORDS: Tissues, Scattering, Tissue optics, Diagnostics, Breast cancer, Light scattering, Statistical analysis, Tumors, Surgery, Mie scattering

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Proceedings Article | 21 February 2013 Paper

Fractal analysis of scatter imaging signatures to distinguish breast pathologies

Alma Eguizabal, Ashley Laughney, Venkataramanan Krishnaswamy, Wendy Wells, Keith Paulsen, Brian Pogue, José López-Higuera, Olga Conde

Proceedings Volume 8592, 85920Y (2013) https://doi.org/10.1117/12.2003830

KEYWORDS: Fractal analysis, Tissues, Scattering, Tumors, Principal component analysis, Breast, Reflectivity, Tumor growth modeling, Pathology, Statistical modeling

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Proceedings Article | 2 February 2012 Paper

Enhanced tumor contrast during breast lumpectomy provided by independent component analysis of localized reflectance measures

Alma Eguizabal, Ashley Laughney, Pilar Beatriz Garcia Allende, Venkataramanan Krishnaswamy, Wendy Wells, Keith Paulsen, Brian Pogue, Jose Lopez-Higuera, Olga Conde

Proceedings Volume 8230, 823010 (2012) https://doi.org/10.1117/12.909348

KEYWORDS: Independent component analysis, Tissues, Scattering, Reflectivity, Breast, Principal component analysis, Tumors, Model-based design, Statistical analysis, Diagnostics

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Proceedings Article | 2 February 2012 Paper

Blind breast tissue diagnosis using independent component analysis of localized backscattering response

Alma Eguizabal, Ashley Laughney, Pilar Beatriz García Allende, Venkataramanan Krishnaswamy, Wendy Wells, Keith Paulsen, Brian Pogue, Jose Lopez-Higuera, Olga Conde

Proceedings Volume 8230, 823014 (2012) https://doi.org/10.1117/12.909326

KEYWORDS: Independent component analysis, Scattering, Tissues, Breast, Mie scattering, Tissue optics, Reflectivity, Diagnostics, Surgery, Pathology

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SPIE Journal Paper | 1 November 2011 Open Access

Combined fluorescence and reflectance spectroscopy for in vivo quantification of cancer biomarkers in low- and high-grade glioma surgery

Pablo Valdes, Frederic Leblond, Keith Paulsen, Anthony Kim, Brian Wilson, Olga Conde, Brent Harris, David Roberts

JBO, Vol. 16, Issue 11, 116007, (November 2011) https://doi.org/10.1117/12.10.1117/1.3646916

KEYWORDS: Tumors, Luminescence, Tissue optics, Tissues, Diagnostics, Scattering, Algorithm development, Surgery, Absorption, Brain

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Proceedings Article | 12 February 2011 Paper

Optical assessment of pathology in surgically resected tissues

Ashley Laughney, Venkataramanan Krishnaswamy, Wendy Wells, Olga Conde, Keith Paulsen, Brian Pogue

Proceedings Volume 7907, 79070P (2011) https://doi.org/10.1117/12.874059

KEYWORDS: Tissues, Scattering, Pathology, Spectroscopy, Modulation, Imaging spectroscopy, Tissue optics, Absorption, Breast, Tumors

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Proceedings Article | 9 November 2010 Paper

Fiber optics in structural health monitoring

J. M. López-Higuera, L. Rodriguez, A. Quintela, A. Cobo, F. Madruga, Olga Conde, M. Lomer, M. A. Quintela, J. Mirapeix

Proceedings Volume 7853, 78530D (2010) https://doi.org/10.1117/12.876192

KEYWORDS: Structural health monitoring, Sensors, Transducers, Fiber optics sensors, Fiber Bragg gratings, Fiber optics, Optical fibers, Structured optical fibers, Sensing systems, Composites

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SPIE Journal Paper | 1 November 2010 Open Access

Automated classification of breast pathology using local measures of broadband reflectance

Ashley Laughney, Venkataramanan Krishnaswamy, Pilar Beatriz García-Allende, Olga Conde, Wendy Wells, Keith Paulsen, Brian Pogue

JBO, Vol. 15, Issue 06, 066019, (November 2010) https://doi.org/10.1117/12.10.1117/1.3516594

KEYWORDS: Tissues, Pathology, Scattering, Breast, Tissue optics, Reflectivity, Surgery, Diagnostics, Light scattering, Error analysis

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Proceedings Article | 9 September 2010 Paper

Automatic classification of steel plates based on laser induced breakdown spectroscopy and support vector machines

Francisco Anabitarte, Jesus Mirapeix, Olga Conde, Ana Cubillas, Luis Rodriguez-Cobo, Carlos Galindez, Adolfo Cobo

Proceedings Volume 7653, 765347 (2010) https://doi.org/10.1117/12.866426

KEYWORDS: Laser induced breakdown spectroscopy, Coating, Aluminum, Plasma, Boron, Optimization (mathematics), Laser welding, Optical fibers, Q switched lasers, Ocean optics

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Proceedings Article | 9 September 2010 Paper

Spectral marks for qualitative discriminant analysis

Olga Conde, Lucía Uriarte, Pilar García-Allende, Ana Cubillas, F. Anabitarte, Jose Lopez-Higuera

Proceedings Volume 7653, 76531J (2010) https://doi.org/10.1117/12.865842

KEYWORDS: Liquids, Optical fibers, Absorbance, Absorption, Ultraviolet radiation, Visible radiation, Statistical analysis, Calibration, Absorption spectroscopy, Spectroscopy

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Proceedings Article | 9 September 2010 Paper

Unsupervised grouping of industrial textile dyes using K-means algorithm and optical fibre spectroscopy

Ana Cubillas, Olga Conde, Pedro Anuarbe, Antonio Quintela, Jose Lopez-Higuera

Proceedings Volume 7653, 76533J (2010) https://doi.org/10.1117/12.866427

KEYWORDS: Absorption, Optical fibers, Principal component analysis, Spectroscopy, Optical spectroscopy, Absorbance, Sensors, Ocean optics, Calibration, Infrared sensors

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Proceedings Article | 17 May 2010 Paper

Automated ensemble segmentation of epithelial proliferation, necrosis, and fibrosis using scatter tumor imaging

P. Beatriz Garcia-Allende, Olga Conde, Venkataramanan Krishnaswamy, P. Jack Hoopes, Brian Pogue, Jesus Mirapeix, Jose Lopez-Higuera

Proceedings Volume 7715, 77151B (2010) https://doi.org/10.1117/12.854559

KEYWORDS: Tumors, Tissues, Scattering, Image segmentation, Imaging systems, Artificial neural networks, Absorption, Tissue optics, Algorithm development, Reflectivity

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Proceedings Article | 14 May 2010 Paper

Hyperspectral imaging for diagnosis and quality control in agri-food and industrial sectors

P. Beatriz García-Allende, Olga Conde, Jesus Mirapeix, Adolfo Cobo, Jose Lopez-Higuera

Proceedings Volume 7726, 77260E (2010) https://doi.org/10.1117/12.854506

KEYWORDS: Hyperspectral imaging, Raw materials, Plasma, Imaging spectroscopy, Imaging systems, Cameras, Spectrometers, Principal component analysis, Optical spectroscopy, Hyperspectral systems

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Proceedings Article | 14 May 2010 Paper

Use of the plasma RMS signal for on-line welding quality monitoring

J. Mirapeix, A. Cobo, P. Garcia-Allende, O. Conde, J. Lopez-Higuera

Proceedings Volume 7726, 772625 (2010) https://doi.org/10.1117/12.854684

KEYWORDS: Plasma, Spectroscopy, Titanium, Signal processing, Tellurium, Charge-coupled devices, Plasma spectroscopy, Optical spectroscopy, Laser welding, CCD image sensors

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Proceedings Article | 14 May 2010 Paper

Welding diagnostics based on feature selection and optimization algorithms

J. Mirapeix, A. Cobo, P. García-Allende, O. Conde, J. Lopez-Higuera

Proceedings Volume 7726, 77260F (2010) https://doi.org/10.1117/12.854697

KEYWORDS: Particle swarm optimization, Plasma, Optimization (mathematics), Particles, Argon, Feature selection, Tellurium, Plasma spectroscopy, Diagnostics, Feature extraction

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Proceedings Article | 5 October 2009 Paper

Optical fibre spectroscopy sensor for the quantitative determination of industrial textile dyes

Ana Cubillas, Olga Conde, Pedro Anuarbe, Monica Gutierrez, Vicente Martinez, Jose Lopez-Higuera

Proceedings Volume 7503, 750322 (2009) https://doi.org/10.1117/12.835126

KEYWORDS: Calibration, Sensors, Optical fibers, Spectroscopy, Optical spectroscopy, Absorption, Absorbance, Manufacturing, Absorption spectroscopy, Solids

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Proceedings Article | 5 October 2009 Paper

Welding diagnostics by means of line-to-continuum method and SFFS spectral band selection

J. Mirapeix, P. García-Allende, A. Cobo, O. Conde, M. Lomer, J. López-Higuera

Proceedings Volume 7503, 75034T (2009) https://doi.org/10.1117/12.834914

KEYWORDS: Plasma, Chromium, Diagnostics, Argon, Plasma spectroscopy, Tellurium, Spectroscopy, Optical spectroscopy, Plasma generation, Spatial resolution

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Proceedings Article | 8 July 2009 Paper

Automated interpretation of scatter signatures aimed at tissue morphology identification

P. B. Garcia-Allende, V. Krishnaswamy, K. Samkoe, P. J. Hoopes, B. Pogue, O. Conde, J. López-Higuera

Proceedings Volume 7368, 73681C (2009) https://doi.org/10.1117/12.831561

KEYWORDS: Tumors, Tissues, Scattering, Reflectivity, Imaging systems, Neurons, Image segmentation, Artificial neural networks, Surgery, Scatter measurement

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SPIE Journal Paper | 1 May 2009 Open Access

Automated identification of tumor microscopic morphology based on macroscopically measured scatter signatures

Pilar Beatriz Garcia-Allende, Venkat Krishnaswamy, P. Jack Hoopes, Kimberley Samkoe, Olga Conde, Brian Pogue

JBO, Vol. 14, Issue 03, 034034, (May 2009) https://doi.org/10.1117/12.10.1117/1.3155512

KEYWORDS: Tumors, Tissues, Scattering, Image segmentation, Error analysis, Scatter measurement, Reflectivity, Imaging systems, Absorption, Surgery

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Proceedings Article | 22 April 2009 Paper

Enhanced contrast detection of subsurface defects by pulsed infrared thermography based on the fourth order statistic moment, kurtosis

Francisco Madruga, Clemente Ibarra-Castanedo, Olga Conde, Xavier Maldague, José López-Higuera

Proceedings Volume 7299, 72990U (2009) https://doi.org/10.1117/12.818684

KEYWORDS: Thermography, Defect detection, Statistical analysis, Image processing, Inspection, Infrared cameras, Data processing, Image compression, Nondestructive evaluation, Image enhancement

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Proceedings Article | 24 February 2009 Paper

Automated segmentation based upon remitted scatter spectra from pathologically distinct tumor regions

Pilar Beatriz Garcia-Allende, Venkataramanan Krishnaswamy, Kimberley Samkoe, P. Jack Hoopes, Brian Pogue, Olga Conde, Jose Lopez-Higuera

Proceedings Volume 7187, 718717 (2009) https://doi.org/10.1117/12.808322

KEYWORDS: Tissues, Tumors, Scattering, Image segmentation, Statistical analysis, Imaging systems, Absorption, Error analysis, Visualization, Pathology

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Proceedings Article | 16 May 2008 Paper

Methane sensing using multiple-coupling gaps in hollow-core photonic bandgap fibers

J. Lazaro, A. Cubillas, M. Silva-Lopez, O. Conde, M. Petrovich, J. Lopez-Higuera

Proceedings Volume 7004, 70044U (2008) https://doi.org/10.1117/12.786151

KEYWORDS: Optical fibers, Methane, Sensors, Single mode fibers, Transmittance, Absorption, Diffusion, Signal attenuation, Systems modeling, Performance modeling

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Proceedings Article | 30 April 2008 Paper

In-process automatic wavelength calibration for CCD-spectrometers

J. Mirapeix, A. Cobo, A. Cubillas, O. Conde, J. Lopez-Higuera

Proceedings Volume 7003, 70031T (2008) https://doi.org/10.1117/12.781040

KEYWORDS: Calibration, Plasma, CCD cameras, Spectroscopy, Spectral calibration, Lamps, Error analysis, Manufacturing, Charge-coupled devices, Inspection

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Proceedings Article | 28 April 2008 Paper

Efficient processing technique based on plasma optical spectroscopy for on-line welding quality monitoring

J. Mirapeix, A. Cobo, A. Cubillas, O. Conde, J. Lopez-Higuera

Proceedings Volume 7003, 70030Q (2008) https://doi.org/10.1117/12.781055

KEYWORDS: Plasma, Tellurium, Spectroscopy, Plasma spectroscopy, Optical spectroscopy, Signal detection, Signal processing, Ocean optics, Databases, Defect detection

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Proceedings Article | 26 April 2008 Paper

Comparative analysis of quality parameters of Italian extra virgin olive oils according to their region of origin

Anna Grazia Mignani, Pilar Beatriz García-Allende, Leonardo Ciaccheri, Olga Conde, Antonio Cimato, Cristina Attilio, Debora Tura

Proceedings Volume 7003, 700326 (2008) https://doi.org/10.1117/12.785342

KEYWORDS: Data processing, Absorption spectroscopy, Principal component analysis, Spectral data processing, Chemometrics, Absorption, Sensors, Absorbance, Ultraviolet radiation, Spectrophotometry

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Proceedings Article | 25 April 2008 Paper

Adaptive illumination source for multispectral vision system applied to material discrimination

Olga Conde, Adolfo Cobo, Paulino Cantero, David Conde, Jesús Mirapeix, Ana Cubillas, José López-Higuera

Proceedings Volume 7000, 70000Z (2008) https://doi.org/10.1117/12.781496

KEYWORDS: Light sources, Light emitting diodes, CCD cameras, Cameras, Imaging systems, Multispectral imaging, Photography, Calibration, Inspection, Color imaging

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Proceedings Article | 21 April 2008 Paper

Detection of methane at 1670-nm band with a hollow-core photonic bandgap fiber

A. Cubillas, M. Silva-Lopez, J. Lazaro, O. Conde, M. Petrovich, J. Lopez-Higuera

Proceedings Volume 6990, 69900W (2008) https://doi.org/10.1117/12.780587

KEYWORDS: Methane, Absorption, Sensors, Signal to noise ratio, Absorbance, Single mode fibers, Calibration, Cladding, Solids, Laser development

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Proceedings Article | 11 April 2008 Paper

Support vector machines in hyperspectral imaging spectroscopy with application to material identification

P. Beatriz Garcia-Allende, Francisco Anabitarte, Olga Conde, Jesus Mirapeix, Francisco Madruga, Jose Lopez-Higuera

Proceedings Volume 6966, 69661V (2008) https://doi.org/10.1117/12.770306

KEYWORDS: Hyperspectral imaging, Near infrared, Principal component analysis, Imaging spectroscopy, Image classification, Spectrographs, Imaging systems, Sensors, Calibration, Spectroscopy

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Proceedings Article | 11 April 2008 Paper

Infrared imaging spectroscopic system based on a PGP spectrograph and a monochrome infrared camera

Pilar Beatriz Garcia-Allende, Francisco Anabitarte, Olga Conde, Francisco Madruga, Mauro Lomer, Jose Lopez-Higuera

Proceedings Volume 6941, 694118 (2008) https://doi.org/10.1117/12.770290

KEYWORDS: Imaging systems, Calibration, Imaging spectroscopy, Spectrographs, Cameras, Spectroscopy, Hyperspectral imaging, Reflectivity, Near infrared, Light sources

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Proceedings Article | 11 April 2008 Paper

Hyperspectral data processing algorithm combining principal component analysis and K nearest neighbours

P. Beatriz Garcia-Allende, Olga Conde, Marta Amado, Antonio Quintela, Jose Lopez-Higuera

Proceedings Volume 6966, 69660H (2008) https://doi.org/10.1117/12.770298

KEYWORDS: Principal component analysis, Hyperspectral imaging, Sensors, Raw materials, Imaging spectroscopy, Hyperspectral systems, Image classification, Data processing, Image processing, Image sensors

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Proceedings Article | 17 March 2008 Paper

Arc welding quality monitoring by means of near infrared imaging spectroscopy

P. B. Garcia-Allende, J. Mirapeix, A. Cobo, O. Conde, J. Lopez-Higuera

Proceedings Volume 6939, 69390Q (2008) https://doi.org/10.1117/12.770246

KEYWORDS: Plasma, Imaging spectroscopy, Spectroscopy, Plasma spectroscopy, Imaging systems, Optical spectroscopy, Near infrared, Laser welding, CCD cameras, Spectrographs

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Proceedings Article | 17 March 2008 Paper

Industrial defect discrimination applying infrared imaging spectroscopy and artificial neural networks

Pilar Beatriz Garcia-Allende, Olga Conde, Francisco Madruga, Ana Cubillas, Jose Lopez-Higuera

Proceedings Volume 6939, 69390H (2008) https://doi.org/10.1117/12.770279

KEYWORDS: Hyperspectral imaging, Near infrared, Raw materials, Principal component analysis, Imaging spectroscopy, Cameras, Spectrographs, Artificial neural networks, Data compression, Calibration

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Proceedings Article | 2 July 2007 Paper

Data processing method applying principal component analysis and spectral angle mapper for imaging spectroscopic sensors

P. B. García-Allende, O. Conde, J. Mirapeix, A. M. Cubillas, J. López-Higuera

Proceedings Volume 6619, 66193Q (2007) https://doi.org/10.1117/12.738768

KEYWORDS: Principal component analysis, Hyperspectral imaging, Raw materials, Data processing, Imaging spectroscopy, Data compression, Sensors, Spectroscopes, Optical sensors, Image sensors

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Proceedings Article | 2 July 2007 Paper

Arc-welding quality assurance by means of embedded fiber sensor and spectral processing combining feature selection and neural networks

J. Mirapeix, P. B. García-Allende, A. Cobo, O. Conde, J. López-Higuera

Proceedings Volume 6619, 66193P (2007) https://doi.org/10.1117/12.738765

KEYWORDS: Plasma, Fiber optics sensors, Feature selection, Principal component analysis, Neurons, Sensors, Neural networks, Spectroscopy, Optical fibers, Artificial neural networks

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Proceedings Article | 2 July 2007 Paper

Comparison between a symmetric bidirectional-pumping and a unidrectional-pumping configurations in an erbium fiber ring laser

M. A. Quintela, C. Quintela, M. Lomer, F. Madruga, O. Conde, J. Lopez-Higuera

Proceedings Volume 6619, 66192O (2007) https://doi.org/10.1117/12.738538

KEYWORDS: Fiber lasers, Erbium, L band, Erbium lasers, Optical isolators, Wavelength division multiplexing, Tunable filters, Wavelength tuning, Signal to noise ratio, Absorption

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Proceedings Article | 11 May 2007 Paper

Evaluation of PCA dimensionality reduction techniques in imaging spectroscopy for foreign object detection

Olga Conde, Marta Amado, Pilar García-Allende, Adolfo Cobo, José Miguel López-Higuera

Proceedings Volume 6565, 65650M (2007) https://doi.org/10.1117/12.719221

KEYWORDS: Principal component analysis, Detection and tracking algorithms, Hyperspectral imaging, Feature extraction, Imaging spectroscopy, Hyperspectral systems, Surface plasmons, Artificial neural networks, Raw materials, Light sources

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Proceedings Article | 7 May 2007 Paper

Pulse shape effects on the measurement of temperature using a Brillouin-based optical fiber sensor

Carlos Galindez, Francisco-Javier Madruga, Adolfo Cobo, Olga Conde, Jose-Miguel Lopez-Higuera

Proceedings Volume 6572, 65720S (2007) https://doi.org/10.1117/12.719432

KEYWORDS: Modulation, Optical fibers, Spatial resolution, Temperature metrology, Scattering, Teeth, Phonons, Light scattering, Shape analysis

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Proceedings Article | 9 April 2007 Paper

Arc-welding defect detection by means of principal component analysis and artificial neural networks

P. García-Allende, J. Mirapeix, A. Cobo, O. Conde, J López-Higuera

Proceedings Volume 6541, 654113 (2007) https://doi.org/10.1117/12.718392

KEYWORDS: Principal component analysis, Plasma, Defect detection, Artificial neural networks, Spectroscopy, Plasma spectroscopy, Sensors, Plasma generation, Control systems, Charge-coupled devices

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Proceedings Article | 9 April 2007 Paper

Arc-welding process control based on back face thermography: application to the manufacturing of nuclear steam generators

A. Cobo, J. Mirapeix, O. Conde, P. García-Allende, F. Madruga, J. López-Higuera

Proceedings Volume 6541, 65410F (2007) https://doi.org/10.1117/12.718949

KEYWORDS: Cameras, Temperature metrology, Thermography, Infrared radiation, Visible radiation, CCD cameras, Infrared imaging, Image analysis, Morphological analysis, Image processing

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Proceedings Article | 9 April 2007 Paper

Field test of infrared thermography applied to biogas controlling in landfill sites

Francisco Madruga, Jaime Muñoz, Daniel González, Juan Tejero, Adolfo Cobo, José Gil, Olga Conde, Jose López-Higuera

Proceedings Volume 6541, 65411B (2007) https://doi.org/10.1117/12.719366

KEYWORDS: Biogases, Thermography, Infrared radiation, Infrared imaging, Atrial fibrillation, Silver, Solids, Methane, Absorption, Temperature metrology

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SPIE Journal Paper | 1 August 2006

Robust technique for spectroscopic plasma analysis with application in real-time arc welding quality monitoring

Jesus Mirapeix, Adolfo Cobo, Olga Conde, Cesar Jauregui, José López-Higuera

OE, Vol. 45, Issue 08, 083002, (August 2006) https://doi.org/10.1117/12.10.1117/1.2336416

KEYWORDS: Plasma, Spectroscopy, Plasma spectroscopy, Argon, Defect detection, Optical engineering, Thermography, Laser welding, Tungsten, Signal processing

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Proceedings Article | 18 April 2006 Paper

Quality control on radiant heaters manufacture

Daniel González, Francisco Madruga, Clemente Ibarra-Castanedo, Olga Conde, Jose López-Higuera

Proceedings Volume 6205, 62051O (2006) https://doi.org/10.1117/12.665490

KEYWORDS: Infrared cameras, Radon transform, Inspection, Image processing, Manufacturing, Platinum, Control systems, Thermography, Algorithm development, Defect detection

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Proceedings Article | 11 October 2005 Paper

Spectroscopic analysis technique for arc-welding process control

Jesús Mirapeix, Adolfo Cobo, Olga Conde, María Ángeles Quintela, José-Miguel López-Higuera

Proceedings Volume 5948, 594824 (2005) https://doi.org/10.1117/12.621939

KEYWORDS: Spectroscopy, Plasmas, Process control, Chemical analysis, Defect detection, Detection and tracking algorithms, Data processing, Nondestructive evaluation, Sensors, Argon

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Proceedings Article | 7 October 2005 Paper

Methane detection using wavelength modulation spectroscopy and a multiline quantitation method

Ana Cubillas, Olga Conde, María Ángeles Quintela, Adolfo Cobo, José Miguel López-Higuera

Proceedings Volume 5948, 59482J (2005) https://doi.org/10.1117/12.623141

KEYWORDS: Methane, Modulation, Calibration, Spectroscopy, Absorption, Signal detection, Chemical species, Sensors, Absorbance, Semiconductor lasers

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Proceedings Article | 23 May 2005 Paper

Digital adaptative filters for interrogating fiber optic sensors

Cesar Jauregui, M. Lomer, O. Conde, A. Cobo, Jose Lopez-Higuera

Proceedings Volume 5855, (2005) https://doi.org/10.1117/12.624299

KEYWORDS: Optical filters, Digital filtering, Fiber optics sensors, Image filtering, Fiber Bragg gratings, Photodetectors, Sensors, Chemical elements, Electronic filtering, Signal processing

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Proceedings Article | 9 June 2004 Paper

In situ refraction index of liquid measurement using polymer optical fibers

Mauro Lomer, Joseba Zubia, Olga Conde, Jesus Mirapeix, A. Cubillas, Jose Lopez-Higuera

Proceedings Volume 5502, (2004) https://doi.org/10.1117/12.566697

KEYWORDS: Liquids, Polymer optical fibers, Refractive index, Refraction, Sensors, In situ metrology, Water, Optical testing, Signal detection, Signal attenuation

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Proceedings Article | 9 June 2004 Paper

Optical signal polarization state instability on erbium-doped fibers

Mariangeles Quintela, Cesar Jauregui, Olga Conde, A. Cubillas, Jose Lopez-Higuera

Proceedings Volume 5502, (2004) https://doi.org/10.1117/12.566708

KEYWORDS: Picosecond phenomena, Polarization, Optical fibers, Erbium, Bandpass filters, Fiber Bragg gratings, Optical filters, Linear filtering, Poincaré sphere, Sensors

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Proceedings Article | 8 March 2004 Paper

Civil engineering transducer's interrogation unit

Cesar Jauregui, Antonio Quintela, Olga Maria Conde, Adolfo Cobo, Jose Miguel Lopez-Higuera

Proceedings Volume 5272, (2004) https://doi.org/10.1117/12.517212

KEYWORDS: Civil engineering, Transducers, Fiber Bragg gratings, Sensors, Near field, Structural monitoring, Multiplexing

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Proceedings Article | 18 February 2004 Paper

Analysis and design tool for optical multipass systems modeled with parametric surfaces

Olga Conde, Adolfo Cobo, Francisco Madruga, M. Quintela, Jose Lopez-Higuera

Proceedings Volume 5249, (2004) https://doi.org/10.1117/12.513291

KEYWORDS: Mirrors, Reflection, Optical design, Systems modeling, Spherical lenses, Solid modeling, Optics manufacturing, Manufacturing, Light sources, Gases

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Proceedings Article | 13 March 2003 Paper

Embedded fiber Bragg grating transducer for concrete structures

Antonio Quintela, Cesar Jauregui, Juan Echevarria, Olga Conde, Francisco Madruga, Jose Miguel Lopez-Higuera

Proceedings Volume 4763, (2003) https://doi.org/10.1117/12.508740

KEYWORDS: Transducers, Fiber Bragg gratings, Temperature metrology, Civil engineering, Photonics, Multiplexing, Medicine, Electromagnetism, Dielectrics, Signal attenuation

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Proceedings Article | 14 February 2002 Paper

Novel multipass absorption cell for carbon dioxide detection

Olga Conde, Sergio Garcia, Roberto Garcia, Adolfo Cobo, Jose Miguel Lopez-Higuera

Proceedings Volume 4578, (2002) https://doi.org/10.1117/12.456099

KEYWORDS: Reflection, Absorption, Reflectivity, Ray tracing, Transducers, Mirrors, Lenses, Environmental monitoring, Sensors, Coating

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Proceedings Article | 14 February 2002 Paper

New optical cell design for pollutant detection

Olga Conde, Sergio Garcia, Jesus Mirapeix, Juan Echevarria, Francisco Madruga Saavedra, Jose Miguel Lopez-Higuera

Proceedings Volume 4578, (2002) https://doi.org/10.1117/12.456083

KEYWORDS: Mirrors, Transducers, Optics manufacturing, Reflectivity, Chemical elements, Optical components, Reflection, Fiber optics sensors, Absorption, Modulation

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Proceedings Article | 6 August 2001 Paper

Temperature, displacement, and acceleration fiber optic sensor for large machinery monitoring

Jose Miguel Lopez-Higuera, Adolfo Cobo, Juan Echevarria, Olga Conde, Francisco Madruga Saavedra

Proceedings Volume 4328, (2001) https://doi.org/10.1117/12.435540

KEYWORDS: Fiber Bragg gratings, Transducers, Sensors, Temperature metrology, Fiber optics sensors, Multimode fibers, Channel projecting optics, Optical fibers, Photodiodes, Fiber couplers

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Showing 5 of 75 publications

Conference Committee Involvement (3)

Clinical Biophotonics III

7 April 2024 | Strasbourg, France

Clinical Biophotonics II

4 April 2022 | Strasbourg, France

Clinical Biophotonics

6 April 2020 | Online Only, France

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