Eduardo Vendrell Vidal

Universitat Politècnica de València | UPV · Institute of Industrial Control Systems and Computing (ai2)

Purpose The purpose of this paper is to characterize three-dimensional (3D) printing filaments commonly used in fused deposition modeling (FDM) to determine their viability for restoration and conservation treatments. Design/methodology/approach Eight current filaments for FDM from six polymeric materials have been characterized to determine their...

La Inteligencia Artificial y el Big Data han cobrado relevancia en los ámbitos académicos recientemente y se nos plantean interrogantes sobre su aplicación y utilidad. En este artículo analizaremos los significados de estas tecnologías, las implicancias de su utilización en el ámbito educativo y el impacto que pudieran tener en la labor pedagógica....

The United Nations 2030 Agenda for Sustainable Development includes a global set of 17 Sustainable Development Goals (SDG), subdivided into 169 targets addressed to different stakeholders, including universities. This agenda emphasizes the importance of an integral training by incorporating sustainable development topics, which is crucial for engin...

In this paper, we introduce SALER, an ongoing project developed by the Universitat Politècnica de València (Spain) which aims at detecting and preventing bad practices and fraud in public administration. The main contribution of the project is the development of a data science-based solution to systematically assist managing authorities to increase...

One of the problems for archaeologic museums is having the opportunity to show most of the objects that they preserve. This is an action they can’t afford because of the limitation of exhibition spaces, the high number of artifacts they guard and/or the conditions of the real objects. Nowadays, with the use of cutting-edge 3D technologies, there is...

p>Advances in three-dimensional (3D) acquisition systems have introduced this technology to more fields of study, such as archaeology or architecture. In the architectural field, scanning a building is one of the first possible steps from which a 3D model can be obtained and can be later used for visualisation and/or feature analysis, thanks to com...

Las tecnologías de la información son la infraestructura base para que el mundo, tal cual lo conocíamos hace una hora, funcione; y aquello que transformará el mundo que conoceremos en la próxima hora. En este contexto social, la educación, como cualquier sector productivo o de servicios, se ve afectada por la tecnología. Pero, ya no solo es hablar...

With the aim of demonstrating the concrete advantages that novel technologies such as Virtual Reality (VR) can provide to the nuclear industry, the authors of this paper have been working on the development of a VR based simulator of a gamma dose rate detector for training purposes, to be applied in the field of nuclear security and safety. Histori...

Following an approach that has been pursued by many engineering programs that are outcomes based accredited, this paper describes the process of designing and implementing the curricula in the College of Engineering of the Universidad de Valparaíso in Chile, using a backwards design approach and also focusing on addressing stakeholders’ needs throu...

This paper faces the problem of acquiring archaeological artifacts using triangulation based 3D laser scanners and focusing on reflective/refractive surfaces. This kind of artifacts are mostly made of glass or polished metal, and the properties of their surfaces violate most of the fundamental assumptions made by vision algorithms. Also, the unique...

This paper introduces a novel technique to automatically recompose archaeological broken artifacts from fragments. The aim of the proposed technique is to assist restoration personnel in the tedious task of reconstructing ancient relics found in excavation sites. Starting from unstructured point clouds of fragments, our approach attempts to recompo...

This article deals with storage and transportation of fragile heritage objets. The main goal is to create an ad hoc packaging software solution by combining the use of 3D scanning and 3D milling technologies. Traditionally, packaging for this kind of object is made manually, creating custom supports and boxes adapted to the specific needs and parti...

Despite extensive research having been conducted on the subject, the problem of three-dimensional information systems for historical cities is actually still unresolved. In addition, commercially available software seems to be increasingly aiming at a quick development of unspecific urban settings, rather than at a metrically and perceptively faith...

This article addresses the problem of automatic reconstruction of ancient artifacts from archaeological fragments. The technique described here focuses on pairwise matching of flat fragments (typically fresco fragments), and it is intended to be the core of a larger system for artifact reconstruction. Global registration techniques are challenging...

This paper presents a new algorithm for fast mobile robot self-localization in structured indoor environments based on geometrical and analytical matching, GEMA22. The proposed method takes advantage of the available structural information to perform a geometrical matching with the environment information provided by measurements collected by a las...

This paper presents an algorithm to calculate gamma dose rates intended for virtual reality (VR) applications. It dynamically adapts the method to cope with both accuracy and time requirements. Given the real-time constraints imposed by VR applications, more accurate, but computationally intensive stochastic algorithms (e.g., Monte Carlo) are not s...

This paper describes two procedures used to disseminate tangible cultural heritage through real-time 3D simulations providing accurate-scientific representations. The main idea is to create simple geometries (with low-poly count) and apply two different texture maps to them: A normal map and a displacement map. There are two ways to achieve models...

p>This paper introduces a method for automatic archaeological fragment reconstruction, based on the pattern matching techniques originally developed in graphic computing and image analysis fields. The method is embodied in a software tool that provides the bests matches in a set of bi-dimensional archaeological fragments. To ensure the efficiency o...

Reconstruction of ancient artifacts from fragments found at archaeological sites is a tedious task that requires a great human effort and that, during decades, has been manual. In this paper, a new technique is introduced to face, automatically, this kind of problems. Taking as input data 3D models of the fragments, and using a characterization bas...

Reconstruction of ancient artifacts from fragments found at archaeological sites, is a tedious task that requires many hours of work from the archaeologist and restoration personnel. In this paper, we introduce an automatic technique for fragment reconstruction based on projective GPU depth maps that takes, as input data, a set of geometric represe...

In this work we show the impact of a mentoring program for freshmen set for the degrees taught at the Escuela Tecnica Superior de Ingenierlia Informatica of the Universitat Politecnica de Valencia. We analyze the variables that influence the student participation in the program, and we evaluate the impact that following up it has for an improvement...

In order to avoid the gap between the post-compulsory secondary education and the University, the PATU program has been conducted at the UPV. Every freshman has a teacher as an academic advisor and a sophomore as an “older brother”. Students have evaluated the program as useful and interesting, and in addition, the ones following this action have a...

Mathematics is an important core of the syllabus of any Computer Science degree. We have studied the relation between the learning competence of Mathematics for first-years at the Universidad Politécnica de Valencia, and their success in the subjects of mathematics in the degree. Its relevance for their success in the whole first academic year is a...

Nowadays, one of the main problems we have to face as teachers is the current profile of the students. In some sense, today's students are indifferent to traditional teaching methodologies, and they seem to expect new ways to acquire knowledge. For that reason, an important amount of students starting university studies have a passive attitude when...

Polimedia de apoyo a la técnica de representación B-Rep de objetos geométricos https://polimedia.upv.es/visor/?id=b07197c8-e944-4746-829f-b72477ace372

Polimedia de apoyo para la comprensión de la técnica de modelado CSG https://polimedia.upv.es/visor/?id=1a888789-7ffb-9a4c-a081-a4464baa7e1e

When a higher education institution creates a new curriculum for a given degree, the design process itself ensures a correct balance and coordination among the subjects in the degree, not only about the contents and learning outcomes of each subject, but also in the learning weight of all the subjects in each semester. However, it is common that, a...

ROC Curves (Receiver Operating Characteris- tic) are remarkably useful in medical decision-making. Given a common measurable characteristic, with a con- tinuous output in all the beings of a group, ROC curves determine a threshold on the values of the characteristic, which tries to predict the classification of beings into dis- crete classes. In th...

Resumen: Se describe el proceso de evaluación de la Licen-ciatura de Documentación de la Universidad Politécnica de Valencia (UPV). Se explica el desarrollo de los estudios aca-démicos de Información y Documentación en España, el pro-cedimiento de evaluación de enseñanzas universitarias según la agencia española responsable (Aneca) y, finalmente, s...

Over the last few years, the Faculty of Computer Science of the Universidad Politecnica de Valencia (UPV) has been offering part of the subjects included in its degrees as non-present teaching, providing a facility for the students that share their studies with a job. This facility can be seen as a virtual learning environment (VLE) that includes,...

The Polytechnic University of Valencia has organized the so-called Action Plan for the European Convergence. This plan tries to impulse some actions with the objective of improving the higher educational system, from the perspective of both teachers and students, in the context of the European Space for Higher Education. Inside the university, the...

The collaboration experiences and the results of the second "Pfalzmetall European Teamseminar" will be presented in this paper. The duration of the project is one semester term and it consists of the cooperation between two national student teams (German and Spanish) and a German company in order to study an industrial problem. The students compose...

From this academic year, the Faculty of Computer Science of the Polytechnic University of Valencia (UPV) is involved in a project which main goal is to create a context for teaching innovation by means of different actions that range from coordination of the syllabi to a reschedule of the students' timetable. This experience is included in the cont...

This paper describes the architecture of a reactive planning system for dynamic environments, which is specifically designed to deal with robot planning problems. The architecture permits many agents to work simultane- ously on the same environment and it is aimed at working with incomplete in- formation. Agents have partial knowledge about the wor...

The VirtualRobot (VRS) is a 3D graphical robot simulator. In this simulator the construction of 3D environments are based on either a graphical editor or on a script file using a set of primitives and their compositions, which are loaded and vi-sualized by the VRS. This procedure is time con-suming and requires a good acquaintance with the set of p...

One of the current topics of research in robotics is activity planning. Most works in this field are related to artificial intelligence (AI) techniques. The main feature of robot planning systems is that they are focused on the particular robot problem or are intended to solve a particular aspect of the planning problem. For this last case, motion...

In a manufacturing environment, material transport plays a key role for the production process efficiency. In Schoeller-Bregenz (SB), a textile manufacturing SME, induction wire guided vehicles performed typical material transports, without the flexibility to adapt transport routes to changes in the production process. To overcome these deficits in...

One of the most important problems for industrial implantation of Flexible Manufacturing Systems is communication between different devices and computers. The standardised use of local area networks (LANs), together with the power of available computers has significantly reduced communications difficulties. The next key challenge to be addressed is...

Considering dynamic environments where mobile robots move makes much more difficult planning resolution. The possibility to have non-controlled mobiles in the environment is one of the cases considered in dynamic environments.

Most of mobile robots in industrial environments are wire guided, following induction wires and artificial reference marks laid down on the factory floor. This kind of approach has the lack of flexibility to adapt the system for different transport requirements. This lack may be overcome using Autonomous Guided Vehicles (AGVs) which must be provide...

At the moment, the common implementation of local area networks allows working in a total communicative environment. Taking advantage of this fact, and the facility to establish communication with a robotized system, one logical step is to join both to get maximum performance. The integration of a robotized system with a local area network is prese...

A proper robot programming is a growing need in robotics. Industrial robot flexibility makes this task hard and complex. This requirement motivates research in developing software to assist tasks for programming robots. Obviously, better throughput could be reached, firstly minimizing programming time and latter in robot program validation. Thís pa...

Cost reduction in commercial CAD systems makes them appropriate to be used as a support tool for robot programming. The use of these systems allows a graphical, intuitive tool to be acquired for supporting robot programmers. The paper describes the development of a robot programming system based on a low cost commercial CAD software. This programmi...

Resumen En esta contribución se presentan las principales características funcionales y se realiza una somera descripción del diseño de la aplicación denominada Virtual Robot Simulator (VRS). Esta aplicación permite la programación off-line, la simulación y la monitorización de sistemas multi-robot mediante una interfaz de usuario gráfico basado en...

The collaboration experiences and results of three seminar editions of the "Pfalzmetall European Team-Seminar" will be presented in this paper. The duration of each edition of the seminar is one or even two semester terms and it consists on the cooperation between two national student teams (German and Spanish) in order to study an industrial probl...