Now showing items 1-20 of 39

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      A Dynamic Equilibrium View of Caching Systems  [Presentation]

      Díaz del Río, Fernando; Sevillano Ramos, José Luis; Cascado Caballero, Daniel; Rodríguez Corral, José María (IEEE Computer Society, 2009)
      In this paper, we present a simple analytical study of caching systems based on the idea of dynamic equilibrium of cache blocks, assuming the Independent Reference Model (IRM) of references. This method allows us to ...
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      A generalization of path following for mobile robots  [Presentation]

      Díaz del Río, Fernando; Jiménez Moreno, Gabriel; Sevillano Ramos, José Luis; Vicente Díaz, Saturnino; Civit Balcells, Antón (IEEE Computer Society, 1999)
      Several authors have proposed some methods for applying path following in specific cases to mobile robots. When we try to extend the path following approach to the general problem several difficulties arise. We present a ...
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      A parallel Homological Spanning Forest framework for 2D topological image analysis  [Article]

      Díaz del Río, Fernando; Real Jurado, Pedro; Onchis, Darian M. (Elsevier, 2016)
      In [14], a topologically consistent framework to support parallel topological analysis and recognition for2 D digital objects was introduced. Based on this theoretical work, we focus on the problem of findingefficient ...
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      A Parallel Implementation for Computing the Region-Adjacency-Tree of a Segmentation of a 2D Digital Image  [Presentation]

      Díaz del Río, Fernando; Real Jurado, Pedro; Onchis, Darian M. (Springer, 2015)
      A design and implementation of a parallel algorithm for computing the Region-Adjacency Tree of a given segmentation of a 2D digital image is given. The technique is based on a suitable distributed use of the algorithm ...
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      A Path Following Control for Unicycle Robots  [Article]

      Díaz del Río, Fernando; Jiménez Moreno, Gabriel; Sevillano Ramos, José Luis; Vicente Díaz, Saturnino; Civit Balcells, Antón (John Wiley and Sons, 2001)
      In this work we present a new path following control for unicycle robots that is applicable for almost all the possible desired paths and whose analysis is very straightforward. First we select the path following method ...
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      A PCI AER Co-Processor Evaluation Based on CPUs Performance Counters  [Article]

      Domínguez Morales, Manuel Jesús; Linares Barranco, Alejandro; Íñigo Blasco, Pablo; Font Calvo, Juan Luis; Cascado Caballero, Daniel; Jiménez Moreno, Gabriel; Díaz del Río, Fernando; Sevillano Ramos, José Luis (JIT Editorial Office, Library and Information Center, National Dong Hwa University, 2012)
      Image processing in digital computer systems usually considers the visual information as a sequence of frames. These frames are from cameras that capture reality for a short period of time. They are renewed and transmitted ...
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      A Real-Time Wireless Sensor Network for Wheelchair Navigation  [Presentation]

      Sevillano Ramos, José Luis; Cascado Caballero, Daniel; Cagigas-Muñiz, Daniel; Vicente Díaz, Saturnino; Luján Martínez, Carlos Daniel; Díaz del Río, Fernando (IEEE Computer Society, 2009)
      Today, the availability of inexpensive, low power hardware including CMOS cameras and wireless devices make it possible to deploy a wireless sensor network (WSN) with nodes equipped with cameras for a variety of ...
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      A Tradeoff Analysis of a Cloud-Based Robot Navigation Assistant Using Stereo Image Processing  [Article]

      Salmerón García, Javier Jesús; Íñigo Blasco, Pablo; Díaz del Río, Fernando; Cagigas-Muñiz, Daniel (IEEE Computer Society, 2015)
      The use of Cloud Computing for computation offloading in the robotics area has become a field of interest today. The aim of this work is to demonstrate the viability of cloud offloading in a low level and intensive ...
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      A Two-Level Dynamic Chrono-Scheduling Algorithm  [Presentation]

      Díaz del Río, Fernando; Sevillano Ramos, José Luis; Vicente Díaz, Saturnino; Cagigas-Muñiz, Daniel; López-Torres, Manuel Ramón (IEEE Computer Society, 2009)
      We propose a dynamic instruction scheduler that does not need any kind of wakeup logic, as all the instructions are “programmed” on issue stage to be executed in pre-calculated cycles. The scheduler is composed of two ...
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      AER Spiking Neuron Computation on GPUs: The Frame-to-AER Generation  [Presentation]

      López-Torres, Manuel Ramón; Díaz del Río, Fernando; Domínguez Morales, Manuel Jesús; Jiménez Moreno, Gabriel; Linares Barranco, Alejandro (Springer, 2011)
      Neuro-inspired processing tries to imitate the nervous system and may resolve complex problems, such as visual recognition. The spike-based philosophy based on the Address-Event-Representation (AER) is a neuromorphic ...
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      An analytical model of inter-channel interference in Bluetooth-based systems  [Presentation]

      Sevillano Ramos, José Luis; Díaz del Río, Fernando; Jiménez Moreno, Gabriel; Cascado Caballero, Daniel; Civit Balcells, Antón (IEEE Computer Society, 2002)
      One of the main advantages of the Bluetooth standard is that it provides a way to support ad-hoc connectivity between a variable number of devices at low cost. However, in situations with many Bluetooth devices that coexist ...
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      An eLearning Standard Approach for Supporting PBL in Computer Engineering  [Article]

      García-Robles, Rocío; Díaz del Río, Fernando; Vicente Díaz, Saturnino; Linares Barranco, Alejandro (IEEE Computer Society, 2009)
      Problem-based learning (PBL) has proved to be a highly successful pedagogical model in many fields, although it is not that common in computer engineering. PBL goes beyond the typical teaching methodology by promoting ...
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      Análisis a Bajo Nivel de Procesadores Superescalares Reales  [Presentation]

      Linares Barranco, Alejandro; Paz Vicente, Rafael; Vicente Díaz, Saturnino; Rodríguez Jódar, Miguel Ángel; Díaz del Río, Fernando (Universidad de Alcalá de Henares. Servicio de Publicaciones, 2000)
      En esta ponencia-demo se presenta una práctica donde se analiza la influencia en el tiempo de ejecución de algunas optimizaciones sobre el código máquina para procesadores reales (familia Intel Pentium). Se propone el ...
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      Una aportación al guiado de sillas de ruedas eléctricas en entornos estructurados  [PhD Thesis]

      Vicente Díaz, Saturnino (2001)
      Cuando hablamos de Tecnología de Rehabilitación (o Tecnología asistencia) nos estamos refiriendo a una nueva forma de desarrollar aplicaciones tecnológicas. Lo que pretende la Tecnología de la Rehabilitación es desarrollar ...
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      Computing the Component-Labeling and the Adjacency Tree of a Binary Digital Image in Near Logarithmic-Time  [Presentation]

      Díaz del Río, Fernando; Molina Abril, Helena; Real Jurado, Pedro (Springer, 2019)
      Connected component labeling (CCL) of binary images is one of the fundamental operations in real time applications. The adjacency tree (AdjT) of the connected components offers a region-based representation where each ...
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      Developing Efficient Discrete Simulations on Multicore and GPU Architectures  [Article]

      Cagigas-Muñiz, Daniel; Díaz del Río, Fernando; López-Torres, Manuel Ramón; Jiménez-Morales, Francisco de Paula; Guisado Lízar, José Luís (MDPI, 2020)
      In this paper we show how to efficiently implement parallel discrete simulations on multicoreandGPUarchitecturesthrougharealexampleofanapplication: acellularautomatamodel of laser dynamics. We describe the techniques employed ...
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      eDiab: A System for Monitoring, Assisting and Educating People with Diabetes  [Presentation]

      Fernández Luque, L.; Sevillano Ramos, José Luis; Hurtado Núñez, F.J.; Moriana García, F.J.; Díaz del Río, Fernando; Cascado Caballero, Daniel (Springer, 2006)
      In this paper, a system developed for monitoring, assisting and educating people with diabetes, named eDiab, is described. A central node (PDA or mobile phone) is used at the patient’s side for the transmission of medical ...
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      Enhanced Parallel Generation of Tree Structures for the Recognition of 3D Images  [Presentation]

      Real Jurado, Pedro; Molina Abril, Helena; Díaz del Río, Fernando; Blanco Trejo, Sergio; Onchis, Darian M. (Springer, 2019)
      Segmentations of a digital object based on a connectivity criterion at n-xel or sub-n-xel level are useful tools in image topological analysis and recognition. Working with cell complex analogous of digital objects, an ...
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      Estudio y evaluación de plataformas de distribución de cómputo intensivo sobre sistemas externos para sistemas empotrados.  [PhD Thesis]

      Salmerón García, Javier Jesús (2016-03-14)
      Nowadays, the capabilities of current embedded systems are constantly increasing, having a wide range of applications. However, there are a plethora of intensive computing tasks that, because of their hardware limitations, ...