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Browsing by Author "Ortigosa Araque, Nuria"

Now showing items 1-19 of 19

A new approach to occupancy map modeling in navigation assisted by computer vision

Riquelme Madrona, Julio; Ortigosa, Nuria; Magal Royo, Teresa; Morillas, Samuel; Peris Fajarnes, Guillermo (2011)

[EN] Occupancy grid maps have been widely used in robotics for navigation assistance. Most of the current occupancy maps use grids based on Cartesian coordinates. In this paper, we introduce a new approach to occupancy map ...
Aplicación para usuarios intolerantes a la fructosa

Gimeno Tébar, M.; Ortigosa, N. (Sociedad Española de Ingeniería Biomédica, 2020-11-27)

[EN] La intolerancia a la fructosa, a diferencia de la intolerancia a lactosa o al gluten, no dispone del etiquetado adecuado y específico en los productos comerciales. Por ello, el presente trabajo pretende solventar este ...
Atrial fibrillation subtypes classification using the General Fourier-family Transform

Ortigosa, Nuria; Cano, O.; Ayala Gallego, Guillermo; Galbis Verdu, Antonio; Fernandez Rosell, Carmen (Elsevier, 2014-04)

Atrial fibrillation patients can be classified into paroxysmal, persistent and permanent attending to the temporal pattern of this arrhythmia. The surface electrocardiogram hides this differentiation. A classification ...
Cambios en los loops de las ondas P del vectocardiograma tras el aislamiento de las venas pulmonares

Ortigosa, Nuria; Cano, O.; Sandberg, F. (Sociedad Española de Ingeniería Biomédica, 2020-11-27)

[ES] La fibrilación auricular es la arritmia más frecuente en la práctica clínica. Además de los tratamientos antiarrítmicos, el aislamiento de las venas pulmonares mediante ablación por catéter es uno de los tratamientos ...
Changes in QRS and T-wave Loops Subsequent to an Increase in Left Ventricle Globularity as in Intrauterine Growth Restriction: a Simulation Study

Bueno-Palomeque, Freddy L; Mountris, Konstantinos A; Mincholé, Ana; Ortigosa, Nuria; Bailón, Raquel; Pueyo, Esther; Laguna, Pablo (IEEE, 2020-09-16)

[EN] Cardiovascular remodeling induced by intrauterine growth restriction manifests in adulthood by more globular ventricles, as evidenced by in vivo measurements. The angle between the dominant vectors of the QRS and ...
Characterization of Changes in P-Wave VCG Loops Following Pulmonary-Vein Isolation

Ortigosa, Nuria; Cano, Óscar; Sandberg, Frida (MDPI AG, 2021-03)

[EN] Atrial fibrillation is the most common type of cardiac arrhythmia in clinical practice. Currently, catheter ablation for pulmonary-vein isolation is a well-established treatment for maintaining sinus rhythm when ...
Detección de caminos libres de obstáculos mediante mapas de profundidad

Ortigosa Araque, Nuria (Universitat Politècnica de València, 2011-11-24)

[ES] El procesado del espacio libre presente en la escena es básico para el correcto funcionamiento de muchas aplicaciones en el ámbito de la robótica y de la navegación. En este trabajo se presenta un método para ...
Distance and Similarity Measurements of P Waves Before and After Pulmonary Vein Isolation in Patients with Atrial Fibrillation

Ortigosa, Nuria; Cano, Óscar; Mainardi, Luca (IEEE, 2019-07-27)

[EN] This study aimed to assess electric markers obtained from the surface electrocardiogram in order to analyse significant differences before and after pulmonary vein isolation in patients who suffered from paroxysmal ...
Early prediction of cardiac resynchronization therapy response by non-invasive electrocardiogram markers

Ortigosa, Nuria; Pérez-Roselló, Víctor; Donoso, Victor; Osca Asensi, Joaquín; Martínez-Dolz, Luis; Fernández Rosell, Carmen; Galbis Verdu, Antonio (Springer-Verlag, 2018-04)

[EN] Cardiac resynchronization therapy (CRT) is an effective treatment for those patients with severe heart failure. Regrettably, there are about one third of CRT "non-responders", i.e. patients who have undergone this ...
Estudio sobre transformadas tiempo-frecuencia aplicables al análisis de electrocardiogramas. Desarrollo de una aplicación con Guide de Matlab para la obtención de señales de electrocardiogramas en formato PDF

Giménez Solano, Vicente Miguel (Universitat Politècnica de València, 2014-11-25)

[EN] In this paper we analyze a particular type of biomedical signals: the electrocardiogram (ECG). To analyze these signals, a very powerful digital processing technique are time-frequency transforms. With them, ECG leads ...
Fuzzy Free Path Detection based on Dense Disparity Maps obtained from Stereo Cameras

Ortigosa Araque, Nuria; Morillas Gómez, Samuel; Peris Fajarnes, Guillermo; Dunai Dunai, Larisa (World Scientific Publishing, 2012-04)

In this paper we propose a fuzzy method to detect free paths in real-time using digital stereo images. It is based on looking for linear variations of depth in disparity maps, which are obtained by processing a pair of ...
Fuzzy Free Path Detection from Disparity Maps by Using Least-Squares Fitting to a Plane

Ortigosa Araque, Nuria; Morillas Gómez, Samuel (Springer Verlag (Germany), 2014-08)

A method to detect obstacle-free paths in real-time which works as part of a cognitive navigation aid system for visually impaired people is proposed. It is based on the analysis of disparity maps obtained from a stereo ...
Gabor frames for classification of paroxysmal and persistent atrial fibrillation episodes

Ortigosa, Nuria; Galbis Verdu, Antonio; Fernández, Carmen; Cano-Pérez, Óscar (Elsevier, 2017-01)

[EN] In this study, we propose a new classification method for early differentiation of paroxysmal and persistent atrial fibrillation episodes, i.e. those which spontaneously or with external intervention will return to ...
Heart morphology differences induced by intrauterine growth restriction and preterm birth measured on the ECG at preadolescent age

Ortigosa, Nuria; Rodriguez-Lopez, Merida; Bailón, Raquel; Sarvari, Sebastian Imre; Sitges, Marta; Gratacos, Eduard; Bijnens, Bart; Crispi, Fatima; Laguna, Pablo (Elsevier, 2016-06)

[EN] Intrauterine Growth Restriction (IUGR) and premature birth are associated with higher risk of cardiovascular diseases throughout adulthood. The aim of this study was to evaluate the influence of these factors in ...
Modding de equipos informáticos como herramienta de aprendizaje en áreas STEM

Rodríguez Ruiz, Alberto; Ortigosa Araque, Nuria (Editorial Universitat Politècnica de València, 2019-05-07)

[◄ES] El empleo de actividades que permitan mantener activo el interés al alumnado en distintas materias es un instrumento fundamental para mejorar el aprendizaje y ampliar conocimientos en todas las áreas educativas. ...
Modelado y análisis de datos procedentes de sistemas de imagen para diagnóstico médico mediante Mathematica

Ortigosa, Nuria; Cerdá Boluda, Joaquín (Universitat Politècnica de València, 2017-01-31)

[EN] Modelling in Science Education and Learninghttp://polipapers.upv.es/index.php/MSELMSELModellingin Science Education and LearningModelling in Science Education and LearningVolume 10 (1), 2017doi: 10.4995/msel.2017.66 ...
Primera experiencia y presentación de labores investigadoras referentes a análisis de imágenes médicas para alumnos de enseñanzas medias

Ortigosa, Nuria; Cerdá Boluda, Joaquín (Editorial Universitat Politècnica de València, 2019-05-07)

[ES] Los Campus Científicos de Verano tienen como objetivo que los alumnos de enseñanzas medias de las opciones científico-técnicas tengan un primer contacto con la labor investigadora que se realiza en las universidades ...
Pulmonary Vein Isolation Induces Changes in Vectorcardiogram P-wave Loops

Ortigosa, Nuria; Cano, Óscar; Sandberg, Frida (IEEE, 2020-09-16)

[EN] Pulmonary vein isolation (PVI) is considered a standard treatment of paroxysmal atrial fibrillation aiming to restore and maintain sinus rhythm. The purpose of this study is to analyse how the PVI treatment affects ...
Simulación y predicción de indicadores de gestión financiera en PYMES mediante el uso de Redes Neuronales Artificiales

Torriente García, Ives (Universitat Politècnica de València, 2021-10-06)

[ES] En este trabajo se realiza un análisis de un modelo que facilita la evaluación y predicción de indicadores financieros y de gestión de las PYMES. El modelo se basa en el uso de Redes Neuronales Artificiales como ...