Recent Submissions

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    Information Theory Applications in Signal Processing  [Article]

    Cruces Álvarez, Sergio Antonio; Martín Clemente, Rubén; Samek, Wojciech (MDPI, 2019-07)
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    Centroid-Based Clustering with ab-Divergences  [Article]

    Sarmiento Vega, María Auxiliadora; Fondón García, Irene; Durán Díaz, Iván; Cruces Álvarez, Sergio Antonio (MDPI AG, 2019-02-19)
    Centroid-based clustering is a widely used technique within unsupervised learning algorithms in many research fields. The success of any centroid-based clustering relies on the choice of the similarity measure under use. ...
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    Advanced signal processing techniques for the modeling and linearization of wireless communication systems.  [PhD Thesis]

    Becerra Gonzalez, Juan Antonio (2019-02-14)
    Los nuevos estándares de comunicaciones digitales inalámbricas están impulsando el diseño de amplificadores de potencia con unas condiciones límites en términos de linealidad y eficiencia. Si bien estos nuevos sistemas ...
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    Simulador de sistemas AER basados en eventos  [Presentation]

    Pérez Carrasco, José Antonio; Serrano Gotarredona, María del Carmen; Acha Piñero, Begoña; Serrano Gotarredona, Teresa; Linares Barranco, Bernabé (2008)
    Address-Event-Representation (AER) is a communications protocol for transferring (visual) information between chips, originally developed for bio-inspired vision and audition systems. Such systems may consist of a ...
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    Sistema de reconocimiento de caracteres de alta velocidad basado en eventos  [Presentation]

    Pérez Carrasco, José Antonio; Acha Piñero, Begoña; Serrano Gotarredona, María del Carmen; Serrano Gotarredona, Teresa; Linares Barranco, Bernabé (2011)
    Spike-based processing technology is capable of very high speed throughput, as it does not rely on sensing and processing sequences of frames. Besides, it allows building complex and hierarchically structured cortical-like ...
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    Segmentation of bone structures in 3D CT images based on continuous max- ow optimization  [Presentation]

    Pérez Carrasco, José Antonio; Acha Piñero, Begoña; Serrano Gotarredona, María del Carmen (Society of Photo-optical Instrumentation Engineers (SPIE), 2015)
    In this paper an algorithm to carry out the automatic segmentation of bone structures in 3D CT images has been implemented. Automatic segmentation of bone structures is of special interest for radiologists and surgeons ...
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    Clustering learning for robotic vision  [Presentation]

    Culurciello, Eugenio; Bates, Jordan; Dundar, Aysegul; Pérez Carrasco, José Antonio; Farabet, Clément (2013)
    We present the clustering learning technique applied to multi-layer feedforward deep neural networks. We show that this unsupervised learning technique can compute network filters with only a few minutes and a much reduced ...
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    Clasificación de lesiones de piel basada en filtros de Gabor y color  [Presentation]

    Pérez Carrasco, José Antonio; Serrano Gotarredona, María del Carmen; Acha Piñero, Begoña (Sociedad española de ingeniería biomédica, 2009)
    Cuando se pretende diagnosticar un posible cáncer de piel, los médicos evalúan la lesión siguiendo diferentes reglas. Aunque la más famosa es la regla ABCD (Asimetría, Borde, Color, Diámetro), una técnica muy empleada ...
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    Turbo EP-Based Equalization: A Filter-Type Implementation  [Article]

    Santos Velázquez, Irene; Murillo-Fuentes, Juan José; Arias de Reyna Domínguez, Eva María; Olmos, Pablo M. (IEEE Communications Society, 2018-09)
    We propose a novel filter-type equalizer to improve the solution of the linear minimum-mean squared-error (LMMSE) turbo equalizer, with computational complexity constrained to be quadratic in the filter length. When ...
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    Expectation propagation as a solution for digital communication systems.  [PhD Thesis]

    Santos Velázquez, Irene (2018-11-16)
    In the context of digital communications, a digital receiver is required to provide an estimation of the transmitted symbols. Nowadays channel decoders highly benefit from soft (probabilistic) estimates for each transmitted ...
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    On Practical Issues for Stochastic STDP Hardware With 1-bit Synaptic Weights  [Article]

    Yousefzadeh, Amirreza; Stromatias, Evangelos; Soto, Miguel; Serrano-Gotarredona, Teresa; Linares Barranco, Bernabé (Frontiers Media, 2018)
    In computational neuroscience, synaptic plasticity learning rules are typically studied using the full 64-bit floating point precision computers provide. However, for dedicated hardware implementations, the precision used ...
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    A Real-Time, Event Driven Neuromorphic System for Goal-Directed Attentional Selection  [Article]

    Gallupi, Francesco; Brohan, Kevin; Davidson, Simón; Serrano Gotarredona, Teresa; Pérez Carrasco, José Antonio; Linares Barranco, Bernabé; Furber, Steve (Springer Verlag, 2012)
    Computation with spiking neurons takes advantage of the abstraction of action potentials into streams of stereotypical events, which encode information through their timing. This approach both reduces power consumption ...
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    Towards Real-World Neurorobotics: Integrated Neuromorphic Visual Attention  [Article]

    Adams, Samantha V.; Rast, Alexander D.; Patterson, Cameron; Gallupi, Francesco; Brohan, Kevin; Pérez Carrasco, José Antonio; Wennekers, Thomas; Furber, Steve; Cangelosi, Angelo (Springer Verlag, 2014)
    Neuromorphic hardware and cognitive robots seem like an obvious fit, yet progress to date has been frustrated by a lack of tangible progress in achieving useful real-world behaviour. System limitations: the simple and ...
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    Mapping from Frame-Driven to Frame-Free Event-Driven Vision Systems by Low-Rate Rate-Coding and Coincidence Processing. Application to Feed-Forward ConvNets  [Article]

    Pérez Carrasco, José Antonio; Zhao, Bo; Serrano Gotarredona, María del Carmen; Acha, Begoña; Serrano Gotarredona, Teresa; Cheng, Shouchun; Linares Barranco, Bernabé (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Event-driven visual sensors have attracted interest from a number of different research communities. They provide visual information in quite a different way from conventional video systems consisting of sequences of ...
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    Passive RFID-Based Inventory of Traffic Signs on Roads and Urban Environments  [Article]

    García-Oya, José Ramón; Martín Clemente, Rubén; Hidalgo Fort, Eduardo; González Carvajal, Ramón; Muñoz Chavero, Fernando (MDPI, 2018-07)
    This paper presents a system with location functionalities for the inventory of traffic signs based on passive RFID technology. The proposed system simplifies the current video-based techniques, whose requirements regarding ...
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    Smart vest for respiratory rate monitoring of COPD patients based on non-contact capacitive sensing  [Article]

    Naranjo Hernández, David; Talaminos Barroso, Alejandro; Reina Tosina, Luis Javier; Roa Romero, Laura María; Barbarov Rostan, Gerardo; Cejudo Ramos, Pilar; Márquez, Martín, Eduardo; Ortega Ruiz, Francisco (MDPI, 2018)
    In this paper, a first approach to the design of a portable device for non-contact monitoring of respiratory rate by capacitive sensing is presented. The sensing system is integrated into a smart vest for an untethered, ...
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    Information Theoretic Approaches for Motor-Imagery BCI Systems: Review and Experimental Comparison  [Article]

    Martín-Clemente, Rubén; Olias Sánchez, Francisco Javier; Thiyam, Deepa Beeta; Cichocki, Andrzej; Cruces Álvarez, Sergio Antonio (MDPI, 2018-01-02)
    Brain computer interfaces (BCIs) have been attracting a great interest in recent years. The common spatial patterns (CSP) technique is a well-established approach to the spatial filtering of the electroencephalogram (EEG) ...
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    Segmentación de imágenes basada en color y textura  [PhD Thesis]

    Fondón García, Irene (2010-11-05)
    En esta tesis se presenta un método para la segmentación de imágenes naturales basado en la técnica de crecimiento de regiones, que toma en consideración la información de color y textura adaptándose a la percepción humana. ...
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    Image processing in medicine advances for phenotype characterization, computer-assisted diagnosis and surgical planning  [PhD Thesis]

    Sánchez Mendoza, Carlos (2011-05-13)
    En esta Tesis presentamos nuestras contribuciones al estado del arte en procesamiento digital de imágenes médicas, articulando nuestra exposición en torno a los tres principales objetivos de la adquisición de imágenes en ...
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    On the implementation of distributed asynchronous non-linear kernel methods over wireless sensor networks  [Article]

    Garrido-Castellano, Juan A.; Murillo-Fuentes, Juan José (Springer, 2015)
    In this paper, we face the implementation of a non-linear kernel method for regression on a wireless sensor network (WSN) based on MICAz motes. The operating system used is TinyOS 2.1.1. The algorithm estimates the value ...

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