Investigación: Recent submissions

Now showing items 121-140 of 498

    • Finding the Place: How to Train and Use Convolutional Neural Networks for a Dynamically Learning Robot 

      Cruz, Edmanuel; Rangel, José Carlos; Gomez Donoso, Francisco; Bauer, Zuria; Cazorla, Miguel; García Rodríguez, José (10/15/2018)
      For a robot, the ability to adapt his knowledge automatically and customize its behavior is a key feature. Furthermore, a robot should be able to carry out its tasks at a long-term basis, performing it seamlessly in presence ...

    • Computing Image Descriptors from Annotations Acquired from External Tools 

      Rangel, José Carlos; Cazorla, Miguel; García Varea, Ismael; Martínez Gómez, Jesus; Fromont, Élisa; Sebban, Marc (11/28/2015)
      Visual descriptors are widely used in several recognition and classification tasks in robotics. The main challenge for these tasks is to find a descriptor that could represent the image content without losing representative ...

    • An augmented reality application for improving shopping experience in large retail stores 

      Cruz, Edmanuel; Orts-Escolano, Sergio; Gomez-Donoso, Francisco; Rizo, Carlos; Rangel, Jose Carlos; Mora, Higinio; Cazorla, Miguel (02/24/2018)
      In several large retail stores, such as malls, sport or food stores, the customer often feels lost due to the difficulty in finding a product. Although these large stores usually have visual signs to guide customers toward ...

    • Irrigation System Through Intelligent Agents Implemented With Arduino Technology 

      Salazar, Rodolfo; Rangel, José Carlos; Pinzón, Cristian; Rodríguez, Abel (11/01/2013)
      The water has become in recent years a valuable and increasingly scarce. Its proper use in agriculture has demanded incorporate new technologies, mainly in the area of ICT. In this paper we present a smart irrigation system ...

    • LexToMap: lexical-based topological mapping 

      Rangel, José Carlos; Martínez Gómez, Jesus; García Varea, Ismael; Cazorla, Miguel (11/30/2016)
      Any robot should be provided with a proper representation of its environment in order to perform navigation and other tasks. In addition to metrical approaches, topological mapping generates graph representations in which ...

    • Semi-supervised 3D object recognition through CNN labeling 

      Rangel, José Carlos; Martínez Gómez, Jesus; Romero González, Cristina; García Varea, Ismael; Cazorla, Miguel (04/01/2018)
      Despite the outstanding results of Convolutional Neural Networks (CNNs) in object recognition and classification, there are still some open problems to address when applying these solutions to real-world problems. Specifically, ...

    • Clasificacion Supervisada de Firmas Espectrales de ´ Coberturas Agropecuarias en Panama Utilizando el ´ Mapeo del Angulo Espectral 

      Sanchez-Galan, Javier; Jiménez, José Ulises; Fábrega, José; Serrano, Jorge; Quirós-McIntire, Evelyn Itzel (XLV CONFERENCIA LATINOAMERICANA DE INFORMÁTICAXLV CONFERENCIA LATINOAMERICANA DE INFORMÁTICA, 2019-10-30)
      En este trabajo se presentan consideraciones el desarrollo de una base de datos de firmas espectrales georreferenciadas de coberturas de cultivos agropecuarios y vegetación baja, conocida como biblioteca de firmas espectrales, ...

    • Caracterización morfológica y espectral de 6 variedades criollas de arroz (Oryza sativa L.) en Panamá 

      Jiménez, José Ulises; Quirós-McIntire, Evelyn Itzel; Camargo-García, Víctor; Serrano, Jorge; Sánchez-Galán, Javier; Fábrega, José (2018-07-19)
      El presente trabajo forma parte del proyecto SENACYT IDDS 15-184 titulado “Diseño de un sistema experto basado en firmas espectrales de coberturas agropecuarias en Panamá”. El sitio de estudio se localiza en el Sub-centro ...

    • Detección de índice de área foliar por firma espectral de cultivo de arroz (Oryza sativa L.) 

      Serrano Reyes, Jorge; Fábrega, José; Quirós, Evelyn; Jiménez, José Ulises; SanchezGalan, Javier (2018-07-19)
      El objetivo del estudio fue determinar las longitudes para la detección espectral del índice de área foliar en cultivo de arroz variedad IDIAP 52-05. Se realizaron mediciones de campo con un espectrorradiómetro y medidas ...

    • Ubiquitous Computing and Ambient Intelligence—UCAmI 

      Espinilla, Macarena; Villarreal, Vladimir; McChesney, Ian (Sensors — Open Access JournalSensors — Open Access Journal, 09/13/2019)
      The Ubiquitous Computing (UC) idea envisioned by Weiser in 1991 [1] has recently evolved to a more general paradigm known as Ambient Intelligence (AmI) that represents a new generation of user-centred computing environments ...

    • Object recognition in noisy RGB-D data using GNG 

      Rangel, José Carlos; Morell, Vicente; Cazorla, Miguel; Orts-Escolano, Sergio; García-Rodríguez, José (Pattern Analysis and ApplicationsPattern Analysis and Applications, 04/26/2016)
      Object recognition in 3D scenes is a research field in which there is intense activity guided by the problems related to the use of 3D point clouds. Some of these problems are influenced by the presence of noise in the ...

    • Scene classification based on semantic labeling 

      Rangel, José Carlos; Cazorla, Miguel; García-Varea, Ismael; Martínez-Gómez, Jesus; Fromont, Élisa; Sebban, Marc (07/14/2015)
      Finding an appropriate image representation is a crucial problem in robotics. This problem has been classically addressed by means of computer vision techniques, where local and global features are used. The selection ...

    • Estándares de codificación e interoperabilidad en eSalud: evaluación del proyecto AmIHEALTH 

      Castillo Quiel, Yarisol; Saavedra, Amilkar; Villarreal, Vladimir (Revista Cubana de Información en Ciencia de la SaludRevista Cubana de Información en Ciencia de la Salud, 07/24/2019)
      En el área de la salud, la interoperabilidad en las tecnologías de la información y la comunicación es la capacidad de los sistemas de información para comunicarse, intercambiar datos y utilizarlos en un sistema de salud. ...

    • Modelling the degradation process of lithium-ion batteries when operating at erratic state-of-charge swing ranges 

      Perez, Aramis; L. Quintero, Vanessa; Rozas, Heraldo; Jaramillo, Francisco; Moreno, Rodrigo; Orchard, Marcos (2017 4th International Conference on Control, Decision and Information Technologies (CoDIT)2017 4th International Conference on Control, Decision and Information Technologies (CoDIT), 11/09/2017)
      Manufacturers of lithium-ion batteries inform capacity degradation for regular, symmetrical charge/discharge cycles, which is clearly problematic in real life applications where charge/discharge cycles are hardly regular. ...

    • Lithium-ion battery pack arrays for lifespan enhancement 

      Perez, Aramis; L. Quintero, Vanessa; Rozas, Heraldo; Jimenez, Diego; Jaramillo, Francisco; Orchard, Marcos (2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON)2017 CHILEAN Conference on Electrical, Electronics Engineering, Information and Communication Technologies (CHILECON), 12/21/2017)
      Depending on the application, power and energy requirements may differ significantly and, most likely, a single lithium-ion cell will not suffice. Battery packs offer cell interconnections that allow to obtain several ...

    • State-of-charge estimation to improve energy conservation and extend battery life of wireless sensor network nodes 

      L. Quintero, Vanessa; Estevez, Carlos; Orchard, Marcos (2017 Ninth International Conference on Ubiquitous and Future Networks (ICUFN)2017 Ninth International Conference on Ubiquitous and Future Networks (ICUFN), 07/27/2017)
      Wireless sensor networks are pervasive systems that continuously demonstrate increase in growth by branching into diverse applications. The state of charge is an indicator that conveys the amount of energy available in the ...

    • Frame retransmission using a modified VST-TDMA access protocol in Picocell/WPAN 

      L. Quintero, Vanessa; Estevez, Carlos (2017 IEEE 9th Latin-American Conference on Communications (LATINCOM)2017 IEEE 9th Latin-American Conference on Communications (LATINCOM), 12/28/2017)
      The VST-TDMA access protocol has shown to have many advantages over existing protocols in centralized (star) wireless network architectures. As most data-link layer protocols, it does not have a recovery feature as data ...

    • SoC control for improved battery life and throughput performance under VST-TDMA 

      Torres, Boris; L. Quintero, Vanessa; Estevez, Claudio; Orchard, Marcos; Azurdia, César (IETIET, 02/09/2017)
      Energy independence is a wireless device quality that demands the utmost exigency. Energy harvesting devices (EHD) alleviate the energy constraints demanded by these nodes and with the use of protocols, such as variable ...

    • Lithium-Ion Battery End-of-Discharge Time Estimation and Prognosis based on Bayesian Algorithms and Outer Feedback Correction Loops: A Comparative Analysis 

      Tampier, Carlos; Perez, Aramis; Jaramillo, Francisco; Orchard, Marcos; Silva, Jorge; L. Quintero, Vanessa (A Comparative Analysis. In the Annual Conference of the Prognostics and Health Management Society 2015A Comparative Analysis. In the Annual Conference of the Prognostics and Health Management Society 2015, 2015-08-24)
      Battery energy systems are currently one of the most common power sources found in mobile electromechanical devices. In all these equipment, assuring the autonomy of the system requires to determine the battery state-of-charge ...

    • Characterization of the degradation process of lithium-ion batteries when discharged at different current rates 

      L. Quintero, Vanessa; Perez, Aramis; Jaramillo, Francisco; Rozas, Heraldo; Rozas, Heraldo; Jimenez, Diego; Orchard, Marcos; Moreno, Rodrigo (05/08/2018)
      The use of energy storage devices, such as lithium-ion batteries, has become popular in many different domains and applications. Hence, it is relatively easy to find literature associated with problems of battery state-of-charge ...