Listar por autor UPNA "Villanueva Larre, Arantxa"
Mostrando ítems 1-20 de 30
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Accurate pupil center detection in off-the-shelf eye tracking systems using convolutional neural networks
Larumbe Bergera, Andoni
; Garde Lecumberri, Gonzalo ; Porta Cuéllar, Sonia ; Cabeza Laguna, Rafael ; Villanueva Larre, Arantxa (MDPI, 2021)
Artículo / Artikulua 
Remote eye tracking technology has suffered an increasing growth in recent years due to its applicability in many research areas. In this paper, a video-oculography method based on convolutional neural networks (CNNs) for ... -
Attention to online channels across the path to purchase: an eye-tracking study
Cortiñas Ugalde, Mónica ; Cabeza Laguna, Rafael ; Chocarro Eguaras, Raquel ; Villanueva Larre, Arantxa (Elsevier, 2019)
Artículo / Artikulua
Currently, consumers display what is known as omnichannel behavior: the combined use of digital and physical channels providing them with multiple points of contact with firms. We combine the stimulus-organism-response (S-O-R) ... -
Attention to product images in an online retailing store: an eye-tracking study considering consumer goals and type of product
Chocarro Eguaras, Raquel ; Cortiñas Ugalde, Mónica ; Villanueva Larre, Arantxa (California State University Press, 2022)
Artículo / Artikulua
The visual content of the product area is crucial in an e-commerce site. This paper studies the differences in attention to product images in the product area in e-commerce sites considering the effects of purchase stage ... -
Contributions of artificial intelligence to low resolution renal multiparametric magnetic resonance analysis
Oyarzun Domeño, Anne; Villanueva Larre, Arantxa (2021)
Contribución a congreso / Biltzarrerako ekarpena
Arterial spin labeling (ASL), is a Multiparametric Magnetic Resonance Imaging (MRI) technique used to quantify and evaluate Renal Blood Flow (RBF) and detect perfusion failure by labelling blood water as it flows throughout ... -
Contributions to Head Pose Estimation methods
Ariz Galilea, Mikel (2016)
Tesis doctoral / Doktoretza tesia
Head Pose Estimation (HPE) is currently a growing research field, mainly because of the proliferation of human-computer interfaces (HCI) in the last decade. It offers a wide variety of applications, including driver ... -
Development of a prediction protocol for the screening of metabolic associated fatty liver disease in children with overweight or obesity
Osés Recalde, Maddi ; Cadenas-Sánchez, Cristina ; Medrano Echeverría, María ; Galbete Jiménez, Arkaitz ; Miranda Ferrúa, Emiliano; Ruiz, Jonatan R.; Sánchez-Valverde, Felix; Ortega, Francisco B.; Cabeza Laguna, Rafael ; Villanueva Larre, Arantxa ; Idoate, Fernando; Labayen Goñi, Idoia (Wiley, 2022)
Artículo / Artikulua
Background: the early detection and management of children with metabolic associ-ated fatty liver disease (MAFLD) is challenging. Objective: to develop a non-invasive and accurate prediction protocol for the identi-fication ... -
Diagnostic and prognostic potential of multiparametric renal MRI in Kidney transplant patients
Echeverría Chasco, Rebeca; Martín Moreno, Paloma L.; Aramendía Vidaurreta, Verónica; García-Ruiz, Leyre; Mora-Gutiérrez, José María; Vidorreta Díaz de Cerio, Marta; Villanueva Larre, Arantxa ; Cano, David; Bastarrika, Gorka; García Fernández, Nuria; Fernández Seara, María A. (Wiley, 2024)
Artículo / Artikulua
Background: Multiparametric MRI provides assessment of functional and structural parameters in kidney allografts. Itoffers a non-invasive alternative to the current reference standard of kidney biopsy. Purpose: To evaluate ... -
Differences in specific abdominal fat depots between metabolically healthy and unhealthy children with overweight/obesity: the role of cardiorespiratory fitness
Cadenas-Sánchez, Cristina ; Medrano Echeverría, María ; Villanueva Larre, Arantxa ; Cabeza Laguna, Rafael ; Idoate, Fernando; Osés Recalde, Maddi ; Rodríguez Vigil, Beatriz; Álvarez de Eulate, Natalia; Alberdi Aldasoro, Nerea; Ortega, Francisco B.; Labayen Goñi, Idoia (Wiley, 2023)
Artículo / Artikulua
Objectives: Fat depots localization has a critical role in the metabolic health status of adults. Nevertheless, whether that is also the case in children remains under- studied. Therefore, the aims of this study were: (i) ... -
The effect of a multicomponent intervention on steatosis is partially mediated by the reduction of intermuscular abdominal adipose tissue in children with overweight or obesity: the EFIGRO Project
Cadenas-Sánchez, Cristina ; Idoate, Fernando; Cabeza Laguna, Rafael ; Villanueva Larre, Arantxa ; Rodríguez Vigil, Beatriz; Medrano Echeverría, María ; Osés Recalde, Maddi ; Ortega, Francisco B.; Ruiz, Jonatan R.; Labayen Goñi, Idoia (American Diabetes Association, 2022)
Artículo / Artikulua
OBJECTIVE: In adults, there is evidence that improvement of metabolic-associated fatty liver disease (MAFLD) depends on the reduction of myosteatosis. In children, in whom the prevalence of MAFLD is alarming, this muscle-liver ... -
Effects of a family-based lifestyle intervention plus supervised exercise training on abdominal fat depots in children with overweight or obesity: a secondary analysis of a nonrandomized clinical trial
Cadenas-Sánchez, Cristina ; Cabeza Laguna, Rafael ; Idoate, Fernando; Osés Recalde, Maddi ; Medrano Echeverría, María ; Villanueva Larre, Arantxa ; Arenaza, Lide ; Sanz Muñoz, Aritz; Ortega, Francisco B.; Ruiz, Jonatan R.; Labayen Goñi, Idoia (American Medical Association, 2022)
Artículo / Artikulua
Importance Excess abdominal fat is a major determinant in the development of insulin resistance and other metabolic disorders. Increased visceral adipose tissue (VAT) seems to precede the development of insulin resistance ... -
Evaluation of accurate eye corner detection methods for gaze estimation
Bengoechea Irañeta, José Javier; Cerrolaza Martínez, Juan José ; Villanueva Larre, Arantxa ; Cabeza Laguna, Rafael (Bern Open Publishing, 2014)
Artículo / Artikulua
Accurate detection of iris center and eye corners appears to be a promising approach for low cost gaze estimation. In this paper we propose novel eye inner corner detection methods. Appearance and feature based segmentation ... -
Fast and robust ellipse detection algorithm for head-mounted eye tracking systems
Martinikorena Aranburu, Ion ; Cabeza Laguna, Rafael ; Villanueva Larre, Arantxa ; Urtasun, Iñaki; Larumbe Bergera, Andoni (Springer, 2018)
Artículo / Artikulua
In head-mounted eye tracking systems, the correct detection of pupil position is a key factor in estimating gaze direction. However, this is a challenging issue when the videos are recorded in real-world conditions, due ... -
Fisiopatología y técnicas de registro de los movimientos oculares
Gila Useros, Luis; Villanueva Larre, Arantxa ; Cabeza Laguna, Rafael (Gobierno de Navarra, 2009)
Artículo / Artikulua
En el control de la motilidad ocular intervienen varios sistemas funcionales. Los reflejos vestíbulo-oculares y optocinéticos son respuestas automáticas para compensar los movimientos de la cabeza y del entorno visual y ... -
Gaze estimation problem tackled through synthetic images
Garde Lecumberri, Gonzalo; Larumbe Bergera, Andoni ; Bossavit, Benoît ; Cabeza Laguna, Rafael ; Porta Cuéllar, Sonia ; Villanueva Larre, Arantxa (Association for Computing Machinery (ACM), 2020)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, we evaluate a synthetic framework to be used in the field of gaze estimation employing deep learning techniques. The lack of sufficient annotated data could be overcome by the utilization of a synthetic ... -
Gaze tracking system model based on physical parameters
Villanueva Larre, Arantxa ; Cabeza Laguna, Rafael ; Porta Cuéllar, Sonia (World Scientific Publishing, 2007)
Artículo / Artikulua
In the past years, research in eye tracking development and applications has attracted much attention and the possibility of interacting with a computer employing just gaze information is becoming more and more feasible. ... -
Hybrid method based on topography for robust detection of iris center and eye corners
Villanueva Larre, Arantxa ; Ponz Sarvisé, Victoria; Sesma Sánchez, Laura ; Ariz Galilea, Mikel ; Porta Cuéllar, Sonia ; Cabeza Laguna, Rafael (ACM (Association for Computing Machinery), 2013)
Artículo / Artikulua
A multi-stage procedure to detect eye features is presented. Multiresolution and topographic classification are used to detect the iris center. The eye corner is calculated combining valley detection and eyelid curve ... -
Image, brand and price info: do they always matter the same?
Cortiñas Ugalde, Mónica ; Chocarro Eguaras, Raquel ; Villanueva Larre, Arantxa (Association for Computing Machinery (ACM), 2019)
Contribución a congreso / Biltzarrerako ekarpena
We study attention processes to brand, price and visual information about products in online retailing websites, simultaneously considering the effects of consumers’ goals, purchase category and consumers’ statements. We ... -
An image-based framework for the analysis of the murine microvasculature: from tissue clarification to computational hemodynamics
Mañosas Sánchez, Santiago; Sanz Muñoz, Aritz; Ederra, Cristina; Urbiola, Ainhoa; Rojas De Miguel, Elvira; Ostiz, Ainhoa; Cortés-Domínguez, Iván; Ramírez, Natalia; Ortíz-de-Solórzano, Carlos; Villanueva Larre, Arantxa ; Malvè, Mauro (MDPI, 2022)
Artículo / Artikulua
The blood–brain barrier is a unique physiological structure acting as a filter for every molecule reaching the brain through the blood. For this reason, an effective pharmacologic treatment supplied to a patient by ... -
Improved strategies for HPE employing learning-by-synthesis approaches
Larumbe Bergera, Andoni ; Ariz Galilea, Mikel ; Bengoechea Irañeta, José Javier ; Segura, Rubén; Cabeza Laguna, Rafael ; Villanueva Larre, Arantxa (IEEE, 2018)
Contribución a congreso / Biltzarrerako ekarpena
The first contribution of this paper is the presentation of a synthetic video database where the groundtruth of 2D facial landmarks and 3D head poses is available to be used for training and evaluating Head Pose Estimation ... -
Introducing I2Head database
Martinikorena Aranburu, Ion ; Cabeza Laguna, Rafael ; Villanueva Larre, Arantxa ; Porta Cuéllar, Sonia (ACM (Association for Computing Machinery), 2018)
Contribución a congreso / Biltzarrerako ekarpena
I2Head database has been created with the aim to become an optimal reference for low cost gaze estimation. It exhibits the following outstanding characteristics: it takes into account key aspects of low resolution eye ...
