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 ...
  • 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 ...
  • 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 ...
  • TCS and peripheral robotization and upgrade on the ESO 1-meter telescope at La Silla Observatory 

    Ropert, Samuel; Suc, Vincent; Jordan, Andres; Tala, Marcelo; Liedtke, Philip; Royo Royo, Santiago (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2016)
    Conference lecture
    Restricted access - publisher's policy
    In this work we describe the robotization and upgrade of the ESO 1m telescope located at La Silla Observatory. The ESO 1m telescope was the rst telescope installed in La Silla, in 1966. It now hosts as a main instrument ...
  • Estrategias de obtención de condiciones iniciales de diseño para luminarias reflectoras freefrom 

    Tomás Corominas, Núria; Arasa Marti, Jose (2012)
    Conference report
    Open Access
  • Trabajos de investigación en óptica visual y tecnología del color en el CD6 

    Pujol Ramo, Jaume; Arjona Carbonell, Mª Montserrat; Vilaseca Ricart, Meritxell; Aldaba Arévalo, Mikel; Díaz Douton, Fernando; Luque, Sergio Oscar; Zuluaga Duque, Harold; Herrera Ramírez, Jorge Alexis; Sanabria Ortega, Fernando Guillermo; Ferrer Serrano, Edgar; Martínez Roda, Juan Antonio; Ondategui Parra, Juan Carlos; Burgos Fernández, Francisco Javier; Giner Tort, Anna; Torrecilla Ribalta, Elena (2012)
    Conference lecture
    Open Access
  • Medida de la calidad óptica de lentes intraoculares multifocales in vitro mediante un sistema de paso simple y doble paso modificado 

    Zuluaga Duque, Harold; Luque, Sergio Oscar; Díaz Douton, Fernando; Pujol Ramo, Jaume (2009)
    Conference report
    Open Access

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