Recent Submissions

  • Hyperspectral eye fundus imaging with extended spectral range towards the near infrared 

    Alterini, Tommaso; Díaz Douton, Fernando; Vilaseca Ricart, Meritxell (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2019)
    Conference report
    Restricted access - publisher's policy
    Eye fundus photography routinely used in clinical practice is restricted to color imaging of the retina. In the last years, hyperspectral imaging has shown to be a powerful tool for the spectral analysis of biological ...
  • Multiorder diffractive lenses with low f-number 

    Pérez Cabré, Elisabet; Millán Garcia-Varela, M. Sagrario; Valverde Sánchez, José (Universidad de Zaragoza (UZA), 2019)
    Conference lecture
    Restricted access - publisher's policy
    Recent liquid crystal on silicon (LCoS) spatial light modulators (SLMs) working on reflection can achieve large phase modulation ranges, permiting the implementation of multiorder diffractive lenses. These lenses are ...
  • Characterization of speckle patterns generated by a semiconductor laser with optical feedback for speckle reduction in retinal imaging instruments 

    Halpaap, Donatus; Tiana Alsina, Jordi; Vilaseca Ricart, Meritxell; Masoller Alonso, Cristina (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2019)
    Conference lecture
    Restricted access - publisher's policy
    We study experimentally the operating conditions of a semiconductor laser diode subjected to different amounts of optical feedback in order to find a stable and cost-efficient solution for speckle reduction in double-pass ...
  • Study of skin cancer lesions through multispectral and 3D techniques 

    Rey Barroso, Laura; Burgos Fernández, Francisco Javier; Ares Rodríguez, Miguel; Royo Royo, Santiago; Delpueyo, Xana; Puig, Susana; Malvehy Guilera, Josep; Pellacani, Giovanni; Vilaseca Ricart, Meritxell (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2019)
    Conference report
    Restricted access - publisher's policy
    The effective and non-invasive diagnosis of skin cancer is a hot topic in biophotonics since the current gold standard, biopsy followed by histological examination, is a slow and costly procedure for the healthcare system. ...
  • Tear film stability assessment by corneal reflex image degradation 

    Aldaba Arévalo, Mikel; Mira Agudelo, Alejandro; Barrera, John Fredy; García Guerra, Carlos Enrique; Pujol Ramo, Jaume (2018)
    Conference lecture
    Open Access
    A method for tear film break up measurements based on the degradation of corneal reflex images caused by dry spots is presented. The experimental setup, which is based on recording the corneal reflex image or the first ...
  • Optimization of a SS-OCT with a focus tunable lens for enhanced visualization of ocular opacities 

    Rodríguez Aramendia, Ana; Grulkowski, Ireneusz; Jiménez Villar, Alfonso; Manzanera, Silvestre; Chen, Yiwei; Mompeán, Juan; Díaz Douton, Fernando; Pujol Ramo, Jaume; Güell, José Luis; Artal Soriano, Pablo (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2019)
    Conference lecture
    Restricted access - publisher's policy
    Optical methods have been recently used to perform objective assessment of crystalline lens and corneal opacities. Swept-source optical coherence tomography (SS-OCT) enables measurements of the back-reflected or back-scattered ...
  • SLAM-based 3D outdoor reconstructions from lidar data 

    Caminal Colell, Ivan; Casas Pla, Josep Ramon; Royo Royo, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Open Access
    The use of depth (RGBD) cameras to reconstruct large outdoor environments is not feasible due to lighting conditions and low depth range. LIDAR sensors can be used instead. Most state of the art SLAM methods are devoted ...
  • Puesta en marcha de un observatorio robótico en Valle Hurtado, Chile 

    Suc, Vincent; Ropert, Samuel; Jordan, Andres; Royo Royo, Santiago (2018)
    Conference report
    Open Access
    La robotización de pequeños telescopios, hasta diámetros de 1-2m, ha presentado tradicionalmente un gran número de problemas vinculados en especial a las actualizaciones, configuraciones, y limitaciones de contorno de los ...
  • Elaboración de materiales multimedia 

    Mujal-Rosas, Ramon Maria; Armengol Cebrian, Jesús (Universitat de Barcelona. Edicions i Publicacions, 2006)
    Conference report
    Open Access
    En esta ponencia se expondrán los pasos a seguir para la creación de una guía en formato Web para la elaboración de material multimedia (CD, DVD, página Web). La propuesta surgió del Instituto de Ciencias de la Educación ...
  • Programa de formación en el uso de humedales construidos para el tratamiento de aguas residuales en la Universidad Nacional Agraria de la Molina, Perú 

    Pastor Zegarra, Rosario Margarita; Miglio, Rosa; Suero Sánchez, Diego Enrique; Arias Isaza, Carlos Alberto de Jesús; Morató Farreras, Jordi (2016)
    Conference lecture
    Open Access
    Resultados y discusión: - Se han construido dos plantas experimentales para el tratamiento de agua residual, con tecnología adaptable a la situación económica social en el Perú, que permitan el desarrollo de actividades ...
  • Fotomultiplicador de silicio para aplicaciones de lidar atmosférico 

    Riu Gras, Jordi; Sicard, Michaël; Royo Royo, Santiago; Comerón Tejero, Adolfo (2012)
    Conference report
    Open Access
    En este estudio se analiza la viabilidad y el rendimiento en cuanto a la utilización de un fotomultiplicador de silicio (SiPM) en comparación con los ya conocidos tubos fotomultiplicadores (PMT) ampliamente utilizados en ...
  • Fortalecimiento de capacidades técnicas locales para la mejora del servicio de agua y saneamiento en Izcuchaca, Perú 

    Pastor Zegarra, Rosario Margarita; Morató Farreras, Jordi (2017)
    Conference lecture
    Open Access
    POSTER: Fortalecer las capacidades técnicas de la Municipalidad Provincial de Anta con la finalidad de: i) Actualización del Plan Operativo de Agua y Saneamiento (POAS) para el Municipio de Anta, ii) Capacitación e intercambio ...

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