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dc.rights.licenseAtribución-CompartirIgual 4.0 Internacional
dc.contributor.advisorGómez-Mendoza, Juan Bernardo
dc.contributor.advisorOsorio Londoño, Gustavo Adolfo
dc.contributor.authorPatiño Martínez, Víctor Alejandro
dc.date.accessioned2023-08-02T16:50:06Z
dc.date.available2023-08-02T16:50:06Z
dc.date.issued2023
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/84421
dc.descriptionfotografías, graficas, tablas
dc.description.abstractLa exportación de aguacates en Colombia ha aumentado en los últimos años. Una de las etapas clave del proceso de producción es conocer el grado de madurez del aguacate que se va a cosechar. Existe una correlación entre la materia seca de un aguacate y su esta- do de maduración. Sin embargo, la estimación de la materia seca por medios físicos es un proceso que consume mucho tiempo y conlleva grandes pérdidas. Existen varios estudios sobre la relación entre imágenes multiespectrales de aguacates y su materia seca. Esta tesis presenta los detalles sobre el diseño y la construcción de un sistema de imágenes multiespec- trales basado en Leds. El diseño se dividió en tres partes principales: mecánica, hardware electrónico y firmware. Una vez probado el sistema, se tomaron imágenes de 14 aguacates para obtener una primera aproximación a la estimación de la materia seca, utilizando técni- cas de uso común en reconocimiento de patrones como LDA, distancia de Mahalanobis y mapas auto-organizativos. Nuestros mejores resultados se obtuvieron utilizando la distancia de Mahalanobis, que da un error relativo máximo del 14,77 % (Texto tomado de la fuente)
dc.description.abstractThe exportation of avocados in Colombia has increased in the last few years. One of the key stages of the production process is to know the ripeness level of the avocado that is going to be harvested. There is a correlation between the dry matter of an avocado and its ripeness state. Nevertheless, dry matter estimation by physical means is a time-consuming and wasteful process. There are several studies on the relationship between multispectral images of avocados and their dry matter. This thesis presents the details on the design and construction of a LED-Based Multispectral Imaging System. The design was divided into three main parts: mechanical, electronic hardware, and firmware. Once the system was proof tested, images were taken from 14 avocados in order to obtain a first approximation to the estimation of the dry matter, using techniques that are commonly used in pattern recognition such as LDA, Mahalanobis distance, and Self-organizing-maps. Our best results were achieved using the Mahalanobis distance, which gives a maximum relative error of 14.77% .
dc.format.extentxv, 65 páginas
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherUniversidad Nacional de Colombia
dc.rights.urihttp://creativecommons.org/licenses/by-sa/4.0/
dc.subject.ddc620 - Ingeniería y operaciones afines::629 - Otras ramas de la ingeniería
dc.titleDiseño y construcción de un banco de pruebas con iluminación multiespectral para el estudio del estado de maduración en aguacates
dc.typeTrabajo de grado - Maestría
dc.type.driverinfo:eu-repo/semantics/masterThesis
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dc.publisher.programManizales - Ingeniería y Arquitectura - Maestría en Ingeniería - Automatización Industrial
dc.contributor.researchgroupPercepción y Control Inteligente - PCI
dc.description.degreelevelMaestría
dc.description.degreenameMagíster en Ingeniería - Automatización Industrial
dc.description.researchareaDiseño de producto electrónico
dc.identifier.instnameUniversidad Nacional de Colombia
dc.identifier.reponameRepositorio Institucional Universidad Nacional de Colombia
dc.identifier.repourlhttps://repositorio.unal.edu.co/
dc.publisher.facultyFacultad de Ingeniería y Arquitectura
dc.publisher.placeManizales, Colombia
dc.publisher.branchUniversidad Nacional de Colombia - Sede Manizales
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dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.subject.proposalSistema de imágenes multiespectrales basado en leds
dc.subject.proposalMateria seca del aguacate
dc.subject.proposalHardware electrónico
dc.subject.proposalMecánica
dc.subject.proposalFirmware
dc.subject.proposalAlgoritmos de clasificación
dc.subject.proposalLDA
dc.subject.proposalS.O.M
dc.subject.proposalDistancias de Mahalanobis
dc.subject.proposalLED-Based multispectral imaging system
dc.subject.proposalAvocado dry matter
dc.subject.proposalHardware
dc.subject.proposalMechanical
dc.subject.proposalFirmware
dc.subject.proposalClassification algorithms
dc.subject.proposalMahalanobis distances
dc.title.translatedDesign and construction of a multispectral illumination test bench for the study of the ripening stage of avocados.
dc.type.coarhttp://purl.org/coar/resource_type/c_bdcc
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.contentImage
dc.type.contentText
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2
dcterms.audience.professionaldevelopmentBibliotecarios
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dcterms.audience.professionaldevelopmentPúblico general
dc.description.curricularareaEléctrica, Electrónica, Automatización Y Telecomunicaciones.Sede Manizales


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Atribución-CompartirIgual 4.0 InternacionalEsta obra está bajo licencia internacional Creative Commons Reconocimiento-NoComercial 4.0.Este documento ha sido depositado por parte de el(los) autor(es) bajo la siguiente constancia de depósito