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PhD Thesis
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Sobre el análisis en componentes independientes de imágenes naturales
(2005)
En esta Tesis se estudian matemática y experimentalmente, los resultados obtenidos al realizar el análisis en componentes independientes (abreviadamente, ICA, del inglés Independent Component Analysis) de imágenes naturales. ...
Article
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L1-norm unsupervised Fukunaga-Koontz transform
(Elsevier, 2021)
The Fukunaga-Koontz transform (FKT) is a powerful supervised feature extraction method used in twoclass recognition problems, particularly when the classes have equal mean vectors but different covariance matrices. The ...
Presentation
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Continuous convex relaxation methodology applied to retroperitoneal tumors
(Sociedad Española de Ingeniería Biomédica, 2015)
In this paper, two algorithms for the segmentation of tumors in soft tissues are presented and compared. These algorithms are applied to the segmentatiion of retroperitoneal tumors. Method: The ...
Article
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Smart vest for respiratory rate monitoring of COPD patients based on non-contact capacitive sensing
(MDPI, 2018)
In this paper, a first approach to the design of a portable device for non-contact monitoring of respiratory rate by capacitive sensing is presented. The sensing system is integrated into a smart vest for an untethered, ...
Presentation
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Nuevo Algoritmo para el Cálculo de la Relación Disco ÓpticoExcavación Basado en Distancias de Color
(Sociedad Española de Ingeniería Biomédica, 2010)
En este trabajo se presenta una nueva herramienta automática de diagnóstico asistido por computador (CAD) para programas de rastreo masivo de glaucoma mediante el cálculo de la relación de aspecto entre la excavación ...
Article
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Self-assessed Contrast-Maximizing Adaptive Region Growing
(Springer, 2009)
In the context of an experimental virtual-reality surgical planning software platform, we propose a fully self-assessed adaptive region growing segmentation algorithm. Our method successfully delineates main tissues relevant ...
PhD Thesis
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Sobre las propiedades discriminativas del análisisen componentes principales basado en la norma L1
(2021-09-30)
El análisis de componentes principales (PCA) basado en la norma L1 es una técnica cada vez más popular para el análisis de datos multivariantes. Como idea intuitiva se utiliza que, para las direcciones en las que la nube ...
Article
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Desarrollo de un bioimpedancímetro portable para pacientes con enfermedad renal crónica y deportistas de alto rendimiento
(Instituto Tecnológico de Costa Rica, 2021)
El presente artículo da cuenta de la investigación para la innovación, diseño y desarrollo industrial de un dispositivo médico portable que obtiene datos relevantes de la bioimpedancia humana con precisión clínica, ...
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Automatic classification of tissue malignancy for breast carcinoma diagnosis
(Elsevier, 2018-05-05)
Breast cancer is the second leading cause of cancer death among women. Its early diagnosis is extremely important to prevent avoidable deaths. However, malignancy assessment of tissue biopsies is complex and dependent on ...
Presentation
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Red neuronal convolucional rápida sin fotogramas para reconocimientos de dígitos
(Unión Científica Internacional de Radio, 2011)
In this paper a bio-inspired six-layer convolutional network (ConvNet) non-frame based for digit recognition is shown. The system has been trained with the backpropagation algorithm using 32x32 images from the MNIST ...