Browsing by Subject "Fons de l'ull"

Now showing items 1-18 of 18

    • Análisis colorimétrico de estructuras de fondo de ojo mediante retinografía multiespectral 

      Burgos Fernández, Francisco Javier; Alterini, Tommaso; Díaz Douton, Fernando; Pujol Ramo, Jaume; Vilaseca Ricart, Meritxell (2022)
      Conference report
      Open Access
      El análisis del fondo del ojo es crucial para prevenir enfermedades retinianas y coroideas ya que la mayoría no causan síntomas en etapas tempranas. Tratarlas cuando aparecen los primeros indicios es fundamental para evitar ...

    • Análisis colorimétrico de estructuras de fondo de ojo mediante retinografía multiespectral 

      Burgos Fernández, Francisco Javier; Alterini, Tommaso; Díaz Douton, Fernando; Pujol Ramo, Jaume; Vilaseca Ricart, Meritxell (Universitat Politècnica de Catalunya, 2022-07-01)
      Conference lecture
      Open Access
      El análisis del fondo del ojo es crucial para prevenir enfermedades retinianas y coroideas ya que la mayoría no causan síntomas en etapas tempranas. Tratarlas cuando aparecen los primeros indicios es fundamental para evitar ...

    • Artificial intelligence to identify retinal fundus images, quality validation, laterality evaluation, macular degeneration, and suspected glaucoma 

      Zapata Victori, Miguel Ángel; Royo Fibla, Dídac; Font, Octavi; Vela Segarra, José Ignacio; Marcantonio Santa Cruz, Ivanna Andrea; Moya Sánchez, Eduardo Ulises; Sánchez Pérez, Abraham; Garcia Gasulla, Dario; Cortés García, Claudio Ulises; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José (2020-02-13)
      Article
      Open Access
      Purpose: To assess the performance of deep learning algorithms for different tasks in retinal fundus images: (1) detection of retinal fundus images versus optical coherence tomography (OCT) or other images, (2) evaluation ...

    • Colorimetric analysis of eye fundus structures with multispectral retinography 

      Burgos Fernández, Francisco Javier; Alterini, Tommaso; Díaz Douton, Fernando; Vilaseca Ricart, Meritxell (International Colour Association (AIC), 2021)
      Conference lecture
      Open Access
      The analysis of the eye fundus is critical to prevent retinal and choroidal diseases since most of them cause no symptoms at early stages. Treating them when the very first signs appear is crucial to avoid vision losses. ...

    • Connectivity-based segmentation of retinal vessels in eye fundus images 

      Rallo Capdevila, Miguel; Millán Garcia-Varela, M. Sagrario (2017-12)
      Article
      Open Access
      © Sociedad Española de Óptica. A new unsupervised method for segmentation of objects of diverse nature with the common feature of connectivity (e.g. branching trees or net-shaped objects) is proposed. A preferred application ...

    • Data augmentation for deep learning of non-mydriatic screening retinal fundus images 

      Moya Sánchez, Eduardo Ulises; Sánchez Pérez, Abraham; Zapata Victori, Miguel Ángel; Moreno, Jonatan; Garcia Gasulla, Dario; Parés, Ferran; Ayguadé Parra, Eduard; Labarta Mancho, Jesús José; Cortés García, Claudio Ulises (Springer, 2018)
      Conference report
      Restricted access - publisher's policy
      Fundus image is an effective and low-cost tool to screen for common retinal diseases. At the same time, Deep Learning (DL) algorithms have been shown capable of achieving similar or even better performance accuracies than ...

    • Efecto del centrado de retinografías en los índices de tortuosidad de los vasos sanguíneos 

      Ramírez Cano, Natalia; Rallo Capdevila, Miguel; Millán Garcia-Varela, M. Sagrario (Red Iberoamericana de Óptica (RIAO), 2019)
      Conference lecture
      Restricted access - publisher's policy

    • Fast visible and extended nearinfrared multispectral fundus camera 

      Alterini, Tommaso; Díaz Douton, Fernando; Burgos Fernández, Francisco Javier; Gonzalez, Laura; Mateo, Carlos; Vilaseca Ricart, Meritxell (2019-09)
      Article
      Open Access
      We present a multispectral fundus camera that performs fast imaging of the ocular posterior pole in the visible and near-infrared (400 to 1300 nm) wavelengths through 15 spectral bands, using a flashlight source made of ...

    • 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 ...

    • Hyperspectral retinography in a young healthy population from the visible to the near-infrared 

      Blanch Oliva, Estel·la (Universitat Politècnica de Catalunya, 2020-02-14)
      Master thesis
      Restricted access - confidentiality agreement

    • Medidas hiperespectrales de fondo de ojo: una nueva herramienta para el diagnóstico oftalmológico 

      Alterini, Tommaso; Díaz Douton, Fernando; Burgos Fernández, Francisco Javier; Vilaseca Ricart, Meritxell (Universidad de Jaén, 2019)
      Conference lecture
      Open Access

    • Multispectral retinography in healthy adult population 

      Burgos Fernández, Francisco Javier; Alterini, Tommaso; Díaz Douton, Fernando; Bou Marín, Marina; Vilaseca Ricart, Meritxell (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2021)
      Conference lecture
      Restricted access - publisher's policy
      Spectral reflectance of the eye fundus was evaluated in adult healthy patients through a fast visible and near-infrared multispectral fundus camera. Spectral signatures were analyzed for different ocular structures of the ...

    • Multispectral retinography in healthy adult population 

      Burgos Fernández, Francisco Javier; Alterini, Tommaso; Díaz Douton, Fernando; Bou Marín, Marina; Vilaseca Ricart, Meritxell (Optical Society of American (OSA), 2021)
      Conference lecture
      Open Access
      Spectral reflectance of the eye fundus was evaluated in adult healthy patients through a fast visible and near-infrared multispectral fundus camera. Spectral signatures were analyzed for different ocular structures of the ...

    • Network-based features for retinal fundus vessel structure analysis 

      Amil Marletti, Pablo; Reyes Manzano, César F.; Guzmán Vargas, Lev; Sendiña, Irene; Masoller Alonso, Cristina (Public Library of Science (PLOS), 2019-01-01)
      Article
      Open Access
      Retinal fundus imaging is a non-invasive method that allows visualizing the structure of the blood vessels in the retina whose features may indicate the presence of diseases such as diabetic retinopathy (DR) and glaucoma. ...

    • Nuevos métodos de diagnóstico médico basados en sistemas de imagen hiperespectral 

      Bou Marin, Marina (2021-05-13)
      Conference lecture
      Open Access

    • Reflectance evaluation of eye fundus structures with a visible and near-infrared multispectral camera 

      Burgos Fernández, Francisco Javier; Alterini, Tommaso; Díaz Douton, Fernando; González Alvarez, Laura; Mateo, Carlos; Mestre Ferrer, Clara; Pujol Ramo, Jaume; Vilaseca Ricart, Meritxell (2022-06-01)
      Article
      Open Access
      We examined the spectral reflectance of fundus structures in the visible and near-infrared (400–1300 nm) range for contributing to the medical diagnosis of fundus diseases. Spectral images of healthy eye fundus and other ...

    • Retinal vessel local tortuosity under a macula-to-optic disc central-framing change 

      Ramírez Cano, Natalia; Rallo Capdevila, Miguel; Millán Garcia-Varela, M. Sagrario (2023-03-01)
      Article
      Open Access
      Some ocular and cardiovascular diseases can be detected through the increased tortuosity of retinal blood vessels. Objective tortuosity measures can be obtained from digital image analysis of a retinography. This study ...

    • Valoració d'una APP i el seu dispositiu per a l'obtenció d'imatges retinianes 

      Campi Sanou, Alba (Universitat Politècnica de Catalunya, 2017-06-27)
      Bachelor thesis
      Open Access
      Objectiu: Valorar i comparar la qualitat dels registres fotogràfics d’imatges de fons d’ull obtingudes amb un sistema mòbil adaptat (iExaminer) a un oftalmoscopi convencional (Panòptic) i un sistema convencional de ...