Method to reduce undesired multiple fundus scattering effects in double-pass systems
| Autor: | Joan A Martínez‐roda, Meritxell Vilaseca, Brian Vohnsen, Fernando Díaz-Doutón, Mikel Aldaba, Jaume Pujol, Carlos E. García-Guerra |
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| Přispěvatelé: | Universitat Politècnica de Catalunya. Departament d'Òptica i Optometria, Universitat Politècnica de Catalunya. Centre de Desenvolupament de Sensors, Instrumentació i Sistemes, Universitat Politècnica de Catalunya. GREO - Grup de Recerca en Enginyeria Òptica |
| Rok vydání: | 2019 |
| Předmět: |
Adult
genetic structures Light Eye on healthcare Forward scatter Computer science Fundus Oculi Population Fundus (eye) 01 natural sciences Double pass 010309 optics Reduction (complexity) 03 medical and health sciences Young Adult Salut visual 0302 clinical medicine Optics 0103 physical sciences Image Processing Computer-Assisted Humans Scattering Radiation Ciències de la visió::Òptica física::Llum [Àrees temàtiques de la UPC] education education.field_of_study business.industry Scattering Ciències de la salut::Medicina::Oftalmologia [Àrees temàtiques de la UPC] eye diseases Atomic and Molecular Physics and Optics Optical quality Electronic Optical and Magnetic Materials 030221 ophthalmology & optometry sense organs Computer Vision and Pattern Recognition Spatial frequency Fundus oculi business Artifacts |
| Zdroj: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) Recercat. Dipósit de la Recerca de Catalunya instname |
| ISSN: | 1520-8532 |
| Popis: | Double-pass systems rely on backscattering of light by the human ocular fundus to assess the optical quality of the eye. In this work, we present a method to reduce double-pass image degradation caused by undesired multiple scattering effects in the eye fundus. The reduction is based on combined data processing of simultaneous measurements using two different configurations: one symmetric with equal entrance and exit pupils and another asymmetric with unequal entrance and exit pupils. Under certain conditions, such scattering effects may be effectively suppressed. Measurements of human eyes show that, although multiple fundus scattering imposes a shift on the estimations, double-pass systems can be used to predict the optical quality of the eye within a population. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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