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Semi-supervised deep learning for ocular image classification

dc.contributor.advisorGonzález Osorio, Fabio Augustospa
dc.contributor.advisorPerdomo Charry, Oscar Juliánspa
dc.contributor.authorArrieta Ramos, José Miguelspa
dc.contributor.refereeRomero Castro, Edgar Eduardospa
dc.contributor.refereeToledo Cortés, Santiagospa
dc.contributor.researchgroupMindlabspa
dc.date.accessioned2022-06-21T19:42:01Z
dc.date.available2022-06-21T19:42:01Z
dc.date.issued2022-06-03
dc.descriptionilustraciones, gráficas, tablasspa
dc.description.abstractRegular screening, early diagnosis, and appropriate on-time treatment could prevent vision loss and blindness as a complication of diabetes. Unfortunately, access to expert ophthal- mologists is limited and not readily available. Therefore, automated detection systems could improve access to specialized care by reducing screening time, cost, and e↵ort. Deep learning methods became popular for detecting ocular disease on eye fundus images because of their promising results. However, deep learning models need a large number of labeled images to learn, and the manual labeling of medical images results in a time-consuming and expensive process that requires medical experts in the retina, with little time to devote to this task. As a result, a limited number of annotated images are available. This thesis work proposes a semi-supervised method that leverages unlabeled images and labeled ones to train a mo- del that detects diabetic retinopathy via self-supervised pre-training followed by supervised fine-tuning and knowledge distillation with a small set of labeled images. This method was evaluated on the Messidor-2 dataset achieving 0.89 AUC using only 2 % EyePACS-Kaggle train labeled images.eng
dc.description.abstractLa pérdida de visión y ceguera como complicacíon de la diabetes se podrían prevenir con diagnóstico temprano, exámenes de deteccíon frequentes, y tratamiento oportuno adecuado. Desafortunadamente, el acceso a un oftalmólogo experto es limitado y no es fácilmente disponible. Es por esto que los sistemas de detección automatizados podrían mejorar el acceso a la atención especializada al reducir el tiempo, el costo y el esfuerzo para la detección. Los métodos de aprendizaje profundo se hicieron populares para la detección de enfermedades oculares en imágenes de fondo de ojo debido a sus buenos resultados. Sin embargo, los métodos de aprendizaje profundo necesitan una gran cantidad de imágenes etiquetadas para aprender, siendo el etiquetado manual de imágenes médicas un proceso costoso y lento que requiere escasos expertos médicos en la retina. Como resultado, el número de imágenes anotadas disponibles es limitado. Con este trabajo de tesis se propone un método semi-supervisado que aproveche las imágenes no etiquetadas además de las imágenes etiquetadas para entrenar un modelo que detecte la retinopatía diabética a través de aprendizaje auto-supervisado seguido de un ajuste fino supervisado y destilacion de conocimiento. Este método fue evaluado en el dataset de Messidor-2 logrando un AUC de 0.89 usando solamente 2 % de la particion de entrenamiento de EyePACS-Kaggle con imagenes etiquetadas. (Texto tomado de la fuente).spa
dc.description.degreelevelMaestríaspa
dc.description.degreenameMagíster en Ingeniería - Ingeniería de Sistemas y Computaciónspa
dc.description.researchareaIntelligent systemsspa
dc.format.extentviii, 35 páginasspa
dc.format.mimetypeapplication/pdfspa
dc.identifier.instnameUniversidad Nacional de Colombiaspa
dc.identifier.reponameRepositorio Institucional Universidad Nacional de Colombiaspa
dc.identifier.repourlhttps://repositorio.unal.edu.co/spa
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/81620
dc.language.isoengspa
dc.publisherUniversidad Nacional de Colombiaspa
dc.publisher.branchUniversidad Nacional de Colombia - Sede Bogotáspa
dc.publisher.departmentDepartamento de Ingeniería de Sistemas e Industrialspa
dc.publisher.facultyFacultad de Ingenieríaspa
dc.publisher.placeBogotá, Colombiaspa
dc.publisher.programBogotá - Ingeniería - Maestría en Ingeniería - Ingeniería de Sistemas y Computaciónspa
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dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.licenseReconocimiento 4.0 Internacionalspa
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/spa
dc.subject.ddc000 - Ciencias de la computación, información y obras generales::004 - Procesamiento de datos Ciencia de los computadoresspa
dc.subject.decsDiabetic Retinopathy/diagnostic imagingeng
dc.subject.decsRetinopatía Diabética/diagnóstico por imagenspa
dc.subject.decsDeep Learningeng
dc.subject.decsAprendizaje Profundospa
dc.subject.decsAprendizaje Automáticospa
dc.subject.decsMachine Learningeng
dc.subject.proposalSelf-supervised learningeng
dc.subject.proposalImágenes médicasspa
dc.subject.proposalAprendizaje profundospa
dc.subject.proposalAprendizaje semi-supervisadospa
dc.subject.proposalAprendizaje autosupervisadospa
dc.subject.proposalRetinopatía diabéticaspa
dc.subject.proposalDiabetic retinopathyeng
dc.subject.proposalMedical imagingeng
dc.subject.proposalDeep learningeng
dc.subject.proposalSemi-supervised learningeng
dc.titleSemi-supervised deep learning for ocular image classificationeng
dc.title.translatedAprendizaje profundo semi-supervisado para la clasificación de imágenes ocularesspa
dc.typeTrabajo de grado - Maestríaspa
dc.type.coarhttp://purl.org/coar/resource_type/c_bdccspa
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aaspa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/masterThesisspa
dc.type.redcolhttp://purl.org/redcol/resource_type/TMspa
dc.type.versioninfo:eu-repo/semantics/acceptedVersionspa
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2spa

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Tesis de Maestría en Ingeniería - Ingeniería de Sistemas y Computación

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