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Higher Technical School of Telecommunications Engineering at University of Valladolid, Spain

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29 Papers

Evaluation of Driving Efficiency and Safety with a Custom-Developed Simulation Scenario

Topics: Serious Games; Education and Training

Authors: David González-Ortega , Francisco Díaz-Pernas , Mario Martínez-Zarzuela and Míriam Antón-Rodríguez

Affiliation: Department of Signal Theory and Communications and Telematics Engineering, Telecommunications Engineering School, University of Valladolid, Valladolid and Spain

Digital Object Identifier: 10.5220/0007930903010308

Proceedings of SIMULTECH 2019, ISBN: 978-989-758-381-0

Quick Abstract

In this paper, we present a custom-developed driving simulation scenario and a vehicle model developed to evaluate driving efficiency and safety. The scenario includes different road sections, traffic conditions, and events, including a through road similar to a real road section in the city of Valladolid (Spain). The modeled vehicle is an ICE vehicle with manual or automatic gear shift. During a simulation, following a guided or a free route, the speed, rpm, gear, consumption, and traffic offences are showed in real time and stored in files for further processing. Six people drove in the scenario twice, one time with automatic gear shift and another with manual gear shift. An analysis of the results has been carried out to know the factors with influence on driving efficiency and safety. A significant relation between efficient and safe driving was found. People that took part in the experiments ranked the simulation scenario positively regarding ease of interaction, realistic experience, usefulness for driving learning, and entertainment capacity.

Related Ontology Subjects/Areas/Topics (4)

Education and Training		Simulation and Modeling		Simulation Tools and Platforms
Serious Games

Unity-based Simulation Scenarios to Study Driving Performance

Topics: Serious Games; Education and Training

Authors: David González-Ortega , Francisco J. Díaz-Pernas , Mario Martínez-Zarzuela and Míriam Antón-Rodríguez

Affiliation: Department of Signal Theory and Communications and Telematics Engineering, Telecommunications Engineering School, University of Valladolid, Valladolid and Spain

Digital Object Identifier: 10.5220/0006914601830189

Proceedings of SIMULTECH 2018, ISBN: 978-989-758-323-0

Quick Abstract

In this paper, we present two 3D driving simulation scenarios and a vehicle model developed to analyze driving efficiency and safety. The scenarios include different roads, traffic, and events so that drivers can acquire driving competences and their performance can be tested. They were developed with Unity game engine, which allows to create 2D and 3D games and applications and to export them to many different platforms. The first scenario is urban with varied roads, crossroads controlled by traffic lights, and roundabouts. The second scenario is interurban with different road sections connected by roundabouts. The vehicle engine has been modeled setting the dependency between engine torque and rpm and the dependency of each gear and speed on fuel consumption. Automatic or manual gear shifting can be selected. During a simulation, the speed, rpm, gear, consumption, and traffic offences are showed in real time and stored in files for further processing. Seven people drove in the scenarios and their stored data enabled us to analyze differences in driving performance between them. The simulator was ranked positively by all the participants regarding ease of interaction, similarity to real driving, and usefulness for driving learning.

Related Ontology Subjects/Areas/Topics (4)

Education and Training		Simulation and Modeling		Simulation Tools and Platforms
Serious Games

Telekin - Tele-rehabilitation System for Musculoskeletal and Cognitive Disorders using Natural Movement Interface Devices

Topics: Virtual Environment, Virtual and Augmented Reality; Tele-Rehabilitation

Authors: Raúl Velasco Caminero ¹ , Luis A. Méndez-Herrero ¹ , Francisco J. Díaz-Pernas ¹ , Juan Calabia del Campo ² , Míriam Antón Rodríguez ¹ and Mario Martínez-Zarzuela ¹

Affiliations: ¹ University of Valladolid, Spain , ² European University Miguel de Cervantes, Spain

Digital Object Identifier: 10.5220/0006366701980203

Proceedings of ICT4AWE 2017, ISBN: 978-989-758-251-6

Quick Abstract

In this paper we describe a virtual rehabilitation system designed to improve different physical and cognitive disorders. Rehabilitation is carried out through virtual reality and serious games. Currently, in this system, we use Microsoft Kinect v2 and Leap Motion sensors. Thanks to the modular development of the system, we can add new rehabilitation devices such as Oculus Rift, as well as create new games depending on the pathology to be treated. Therapists access to the system through a web portal where, depending on their access level, they can create rehabilitation sessions and therapies and track the patients’ progress. Patients access to the system through a local application and not using keyboard or mouse devices, using a natural user interface based on their movements. Rehabilitation sessions consist on serious games where the patient performs the exercises of his session programmed by a therapist. There are different types of user with different access levels: administrator, therapist, familiar and patient. The different types of user interact with their respective modules.

Related Ontology Subjects/Areas/Topics (3)

Informatics in Control, Automation and Robotics

Robotics and Automation

Virtual Environment, Virtual and Augmented Reality

The EPIK Island - Serious Game for Stroke Recovery

Topics: Virtual Environment, Virtual and Augmented Reality; Tele-Rehabilitation

Authors: Inés Pinilla Giménez ¹ , Francisco J. Díaz-Pernas ¹ , Sonia Garrote Fernández ² , Juan Azael Herrero Alonso ² , David González Ortega ¹ and Mario Martínez-Zarzuela ¹

Affiliations: ¹ University of Valladolid, Spain , ² Miguel de Cervantes European University, Spain

Digital Object Identifier: 10.5220/0006366501920197

Proceedings of ICT4AWE 2017, ISBN: 978-989-758-251-6

Quick Abstract

In this paper we describe the features of a serious game with virtual reality for use as a complement in rehabilitation therapies for patients who have suffered a stroke with subsequent motor and/or cognitive sequelae. We will expose the importance of rehabilitation in this kind of patients, and how virtual reality video games can be a good complement to the classical rehabilitation method. The game is divided in two applications: one for the therapists where they can change the parameters of the game for adapting it to the patient’s limitations, and the user’s application where the patient can play the different scenes and can perform the prescribed rehabilitation exercises. Each one of the scenes allows the patient to perform some movements aimed at the rehabilitation of some of its limitations, both motor and cognitive.

Related Ontology Subjects/Areas/Topics (3)

Informatics in Control, Automation and Robotics

Robotics and Automation

Virtual Environment, Virtual and Augmented Reality

Towards a Scalable Architecture for Flight Data Management

Topics: Big Data; Data Science; Big Data Applications

Authors: Iván García , Miguel A. Martínez-Prieto , Anibal Bregón , Pedro C. Álvarez and Fernando Díaz

Affiliation: Universidad de Valladolid, Spain

Digital Object Identifier: 10.5220/0006473402630268

Proceedings of DATA 2017, ISBN: 978-989-758-255-4

Quick Abstract

The dramatic growth in the air traffic levels witnessed during the last two decades has increased the interest for optimizing the Air Traffic Management (ATM) systems. The main objective is being able to cope with the sustained air traffic growth under safe, economic, efficient and environmental friendly working conditions. The ADS-B (Automatic Dependent Surveillance - Broadcast) system is part of the new air traffic control systems, since it allows to substitute the secondary radar with cheaper ground stations that, at the same time, provide more accurate real-time positioning information. However, this system generates a large volume of data that, when combined with other flight-related data, such as flight plans or weather reports, faces scalability issues. This paper introduces an (on-going) Data Lake based architecture which allows the full ADS-B data life-cycle to be supported in a scalable and cost-effective way using technologies from the Apache Hadoop ecosystem.

Related Ontology Subjects/Areas/Topics (3)

Big Data

Data Engineering

Data Management and Quality

Contour Learning and Diffusive Processes for Colour Perception

Topics: Image and Video Processing, Compression and Segmentation; Neural Networks, Spiking Systems, Genetic Algorithms and Fuzzy Logic

Authors: Francisco J. Diaz-Pernas , Mario Martínez-Zarzuela , Miriam Anton-Rodriguez and David González-Ortega

Affiliation: University of Valladolid, Spain

Digital Object Identifier: 10.5220/0005955200890094

Proceedings of SIGMAP 2016/ICETE, ISBN: 978-989-758-196-0

Quick Abstract

This work proposes a bio-inspired neural architecture called L-PREEN (Learning and Perceptual boundaRy rEcurrent dEtection neural architecture). L-PREEN has three different feedback interactions that fuse the bottom-up and top-down contour information of visual areas V1-V2-V4-Infero Temporal. This recurrent model uses colour, texture, and diffusive features to generate surface perception and contour learning and recognition processes. We compare the L-PREEN model against other boundary detection methods using the Berkeley Segmentation Dataset and Benchmark (Martin et al., 2001). The results obtained show better performance of L-PREEN using quantitative measures.

Related Ontology Subjects/Areas/Topics (5)

Image and Video Processing, Compression and Segmentation		Multimedia Signal Processing		Telecommunications
Multimedia		Neural Networks, Spiking Systems, Genetic Algorithms and Fuzzy Logic

EPIK - Virtual Rehabilitation Platform Devised to Increase Self-reliance of People with Limited Mobility

Topics: Virtual Environment, Virtual and Augmented Reality; Tele-Rehabilitation

Authors: Sonia Garrote ¹ , Azael J. Herrero ² , Miguel Pedraza-Hueso ³ , Carlos González-Gutiérrez ³ , María V. Fernández-San Román ³ , F. J. Díaz-Pernas ³ , Héctor Menéndez ⁴ , Cristina M. Ferrero ⁴ and Mario Martínez-Zarzuela ³

Affiliations: ¹ European University Miguel de Cervantes, Spain , ² European University Miguel de Cervantes and ASPAYM Castilla y León Foundation, Spain , ³ University of Valladolid, Spain , ⁴ ASPAYM Castilla y León Foundation, Spain

Digital Object Identifier: 10.5220/0005484301880193

Proceedings of ICT4AgeingWell 2015, ISBN: 978-989-758-102-1

Quick Abstract

In this paper we describe a virtual rehabilitation platform designed to improve balance of people with physical impairment using the Microsoft® Kinect® sensor. Different types of users can interact with the platform: Administrators, therapists, and final users (patients), using their own interfaces and modules. Six modules have been designed: Profile, Administrator, Evaluation, Therapist, Game and Results; but only four have been implemented so far: Administrator, Evaluation, Therapist and Game. The Administrator’s module is used to generate a database of exercises. The Therapist’s module allows therapists to configure the game training session using combinations of exercises from the database. The patients’ or game module includes a 3D immersive environment, where they perform the prescribed rehabilitation exercises, previously configured by a therapist. The platform is in its first beta version and ready to be tested.

Related Ontology Subjects/Areas/Topics (3)

Informatics in Control, Automation and Robotics

Robotics and Automation

Virtual Environment, Virtual and Augmented Reality

Mixing and Combustion of Turbulent Coaxial Jets - An Application of Computational Fluid Dynamics to Swirling Flows

Topics: Energy and Power Systems; Fluid Dynamics

Authors: Teresa Parra ¹ , Ruben Perez ¹ , Miguel Angel Rodriguez ¹ , Artur Gutkowski ² , Robert Szasz ³ and Francisco Castro ¹

Affiliations: ¹ University of Valladolid, Spain , ² Technical University of Lodz, Poland , ³ Lund University, Sweden

Digital Object Identifier: 10.5220/0005009005450550

Proceedings of SIMULTECH 2014, ISBN: 978-989-758-038-3

Quick Abstract

The aim of this research is gaining an insight into flow patterns in swirling burners. These are suitable for lean mixtures, because of procuring the fix position of the flame. The interaction of the two reactive confined swirling jets leads to the formation of complex patterns which are not well understood. In the present study, these flow patterns are numerically investigated using Reynolds Averaging Navier-Stokes (RANS) equations for the flow and a Probability Density Function is used for modelling the combustion. Two swirl numbers were characterised: 0.14 and 0.74. Strong swirling annular jets are responsible of an inner recirculation zone. Low swirling flows produce poorer mixture and wide flame fronts whereas strong swirling flows are precursors of mixing enhancement and thing flame fronts.

Related Ontology Subjects/Areas/Topics (5)

Application Domains		Energy and Power Systems		Simulation and Modeling
Complex Systems Modeling and Simulation		Fluid Dynamics

Towards Evidence-aware Learning Design for the Integration of ePortfolios in Distributed Learning Environments

Topics: e-Learning Platforms, Portals; Technology Enhanced Learning; Instructional Design

Authors: Angélica Lozano-Álvarez , Juan I. Asensio-Pérez and Guillermo Vega-Gorgojo

Affiliation: University of Valladolid, Spain

Digital Object Identifier: 10.5220/0004382804050410

Proceedings of CSEDU 2013, ISBN: 978-989-8565-53-2

Quick Abstract

The benefits of using ePortfolios in widespread Distributed Learning Environments are hindered by two problems: students have difficulties in selecting which learning artifacts may demonstrate the acquisition of certain learning skills; and, both teachers and students have difficulties in collecting evidences produced by means of distributed and heterogeneous tools. This paper proposes a model aimed at enhancing the description of learning activities with information about the evidences they are expected to generate. This model is a first step towards the definition of an evidence-aware learning design process by means of which teachers make explicit pedagogical-informed decisions involving the generation and subsequent utilization of learning evidences. As a proof of concept, we apply this model in an authentic learning scenario, trying to alleviate the two aforementioned problems.

Related Ontology Subjects/Areas/Topics (9)

Computer-Supported Education	Instructional Design	Simulation Tools and Platforms
e-Learning	Learning/Teaching Methodologies and Assessment	Technology Enhanced Learning
e-Learning Platforms	Simulation and Modeling	Ubiquitous Learning

Analysis of Spontaneous MEG Activity in Mild Cognitive Impairment using the Wavelet Turbulence

Authors: Jesús Poza ¹ , Carlos Gómez ¹ , María García ¹ , Alberto Fernández ² and Roberto Hornero ¹

Affiliations: ¹ University of Valladolid, Spain , ² Complutense University of Madrid, Spain

Digital Object Identifier: 10.5220/0004182107210726

Proceedings of SSCN 2012/IJCCI, ISBN: 978-989-8565-33-4

Quick Abstract

Mild cognitive impairment (MCI) is usually considered a pre-clinical stage of Alzheimer’s disease (AD). An appropriate characterization of MCI is crucial to achieve an early diagnosis of AD. Over the last few years, much effort has been devoted to identifying new diagnostic tests; tough further research is still required. In this study, we analyzed the spontaneous magnetoencephalographic (MEG) activity from 18 MCI subjects and 27 healthy controls to characterize the irregularity patterns in MCI. For that purpose, the wavelet turbulence (WT) was calculated from the time-scale representation provided by the continuous wavelet transform (CWT). Our results revealed that the mean values and the standard deviation of WT for MCI subjects were significantly higher and lower (p < 0.05) than for controls, respectively. These findings support the notion that MCI is associated with a significant decrease in irregularity and variability when compared to normal aging. A Receiver Operating Characteristic (ROC) analysis with a leave-one-out cross-validation procedure was applied to assess the diagnostic ability of WT. We obtained an accuracy of 66.7% and an area under ROC curve of 0.704. We conclude that the WT extends the concept of irregularity and provides potential descriptors of spontaneous MEG activity in MCI.

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