Search Results - "David Valiente"

Improved Omnidirectional Odometry for a View-Based Mapping Approach by Valiente, David, Gil, Arturo, Reinoso, Óscar, Juliá, Miguel, Holloway, Mathew

“…This work presents an improved visual odometry using omnidirectional images. The main purpose is to generate a reliable prior input which enhances the SLAM…”
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Visual Information Fusion through Bayesian Inference for Adaptive Probability-Oriented Feature Matching by Valiente, David, Payá, Luis, Jiménez, Luis M, Sebastián, Jose M, Reinoso, Óscar

“…This work presents a visual information fusion approach for robust probability-oriented feature matching. It is sustained by omnidirectional imaging, and it is…”
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Modeling Environments Hierarchically with Omnidirectional Imaging and Global-Appearance Descriptors by Payá, Luis, Peidró, Adrián, Amorós, Francisco, Valiente, David, Reinoso, Oscar

“…In this work, a framework is proposed to build topological models in mobile robotics, using an omnidirectional vision sensor as the only source of information…”
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Relative Altitude Estimation Using Omnidirectional Imaging and Holistic Descriptors by Berenguer, Yerai, Payá, Luis, Valiente, David, Peidró, Adrián, Reinoso, Oscar

“…Currently, many tasks can be carried out using mobile robots. These robots must be able to estimate their position in the environment to plan their actions…”
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A Comparative Study of Theoretical Methods to Estimate Semiconductor Nanoparticles’ Size by Rodríguez-Mas, Fernando, Ferrer, Juan, Alonso, José, Valiente, David, Fernández de Ávila, Susana

“…In this paper, we compare four different methods to estimate nanoparticle diameters from optical absorption measurements, using transmission electron…”
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Towards a greener photovoltaic industry: Enhancing efficiency, environmental sustainability and manufacturing costs through solvent optimization in organic solar cells by Rodríguez-Mas, Fernando, Valiente, David, Ferrer, Juan Carlos, Alonso, José Luis, Fernández de Ávila, Susana

“…The energy sector is a major contributor to global greenhouse gas emissions, necessitating a transition to renewable energy sources. The photovoltaic industry…”
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Improvements of Organic Photodetectors for VLC Using a New Active Layer, Focal Lens, and a Transimpedance Amplifier by Corral, Pablo, Rodriguez-Mas, Fernando, De Scals, Guillermo, Valiente, David, Ferrer, Juan Carlos, Fernandez de Avila, Susana

“…Beyond 5G networks, and for short distance but high-speed communication systems, there is an incipient growing interest in visible light communications (VLC)…”
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Impact of Dimethylformamide, Tetrahydrofuran, and Dimethyl Sulfoxide on Bulk Heterojunction Organic Solar Cells’ Efficiency and Environmental Footprint by Rodríguez‐Mas, Fernando, Valiente, David, Corral, Pablo, Alonso, José Luis, Fernández de Ávila, Susana

“…Organic solar cells (OSCs), especially those employing bulk heterojunction architecture, present a promising avenue in renewable energy technology. These…”
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Robust Visual Localization with Dynamic Uncertainty Management in Omnidirectional SLAM by Valiente, David, Gil, Arturo, Payá, Luis, Sebastián, Jose, Reinoso, Óscar

“…This work presents a robust visual localization technique based on an omnidirectional monocular sensor for mobile robotics applications. We intend to overcome…”
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Assessing the Impact of Attendance Modality on the Learning Performance of a Course on Machines and Mechanisms Theory by Valiente, David, Campello-Vicente, Héctor, Velasco-Sánchez, Emilio, Rodríguez-Mas, Fernando, Campillo-Davo, Nuria

“…University education approaches related to the field of science, technology, engineering and mathematics (STEM), have generally particularized on teaching…”
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Reduced Graphene Oxide Inserted into PEDOT:PSS Layer to Enhance the Electrical Behaviour of Light-Emitting Diodes by Rodríguez-Mas, Fernando, Ferrer, Juan Carlos, Alonso, José Luis, Fernández de Ávila, Susana, Valiente, David

“…In this study, poly(9-vinylcarbazole) (PVK)-based LEDs doped with reduced graphene oxide (rGO) and cadmium sulphide (CdS) nanocrystals were fabricated by…”
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On-line quizzes to evaluate comprehension and integration skills by Badia Valiente, José David, Olmo Cazevieille, Françoise, Navarro Jover, José Manuel

“…This work demonstrates the use of a 2.0 tool, namely, Socrative, to evaluate one of the cross-curricular competences indicated by the Universitat Politècnica…”
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Different Paths to Achieve High Technological Innovation in Clustered Firms: An Analysis of the Spanish Ceramic Tile Industry by Molina-Morales, Francesc Xavier, Martínez-Cháfer, Luis, Valiente-Bordanova, David

“…This paper uncovers the different factors behind the high technological innovation performance of clustered firms. Moreover, we aim to investigate the…”
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Visual Odometry through Appearance- and Feature-Based Method with Omnidirectional Images by Valiente García, David, Fernández Rojo, Lorenzo, Gil Aparicio, Arturo, Payá Castelló, Luis, Reinoso García, Oscar

“…In the field of mobile autonomous robots, visual odometry entails the retrieval of a motion transformation between two consecutive poses of the robot by means…”
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Generating a full spherical view by modeling the relation between two fisheye images by Flores, María, Valiente, David, Peidró, Adrián, Reinoso, Oscar, Payá, Luis

“…Full spherical views provide advantages in many applications that use visual information. Dual back-to-back fisheye cameras are receiving much attention to…”
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Efficient probability-oriented feature matching using wide field-of-view imaging by Flores, María, Valiente, David, Gil, Arturo, Reinoso, Oscar, Payá, Luis

“…Feature matching is a key technique for a wide variety of computer vision and image processing applications such as visual localization. It permits finding…”
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Disruptive Technological Innovations as New Opportunities for Mature Industrial Clusters. The Case of Digital Printing Innovation in the Spanish Ceramic Tile Cluster by Molina-Morales, Francesc Xavier, Martínez-Cháfer, Luís, Valiente-Bordanova, David

“…Over the last few decades, many studies have focused on the role that incremental innovations play in cluster contexts. However, few authors have analysed the…”
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Enhancing efficiency and decelerating degradation in bulk heterojunction solar cells with N,N-Dimethylformamide cosolvent for poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) by Rodríguez-Mas, Fernando, Fernández de Ávila, Susana, Ferrer, Juan Carlos, Alonso, José Luis, Valiente, David

“…Focused on the improvement of hole transport layer of organic solar cells based on poly(3-hexylthiophene) (P3HT)/6,6-phenil C61-butyric acid methyl ester…”
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PVK-based LEDs doped by cadmium sulphide nanocrystals coated by mixed thiophenol and 1-decanethiol by Rodríguez-Mas, Fernando, Fernández de Ávila, Susana, Ferrer, Juan Carlos, Alonso, José Luis, Valiente, David

“…Nanoparticles capped with more than one ligand have great potential to improve the properties of optoelectronic devices. To discuss this possibility, we…”
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Exploring feasibility maps for trajectory planning of redundant manipulators using RRT by Fabregat-Jaen, Marc, Peidro, Adrian, Gil, Arturo, Valiente, David, Reinoso, Oscar

“…Redundant manipulators offer several advantages, including improved manipulability, singularity avoidance, and obstacle evasion. However, kinematic redundancy…”
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