Now showing items 1-20 of 83

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      A 148dB focal-plane tone-mapping QCIF imager  [Presentation]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2012)
      This paper presents a QCIF HDR imager where visual information is simultaneously captured and adaptively compressed by an in-pixel tone-mapping scheme [1]. The tone mapping curve (TMC) is calculated from the histogram of ...
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      A 176x144 148dB adaptive tone-mapping imager  [Presentation]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Rodríguez Vázquez, Ángel Benito (Society of Photo-Optical Instrumentation Engineers, 2012)
      This paper presents a 176x144 (QCIF) HDR image sensor where visual information is simultaneously captured and adaptively compressed by means of an in-pixel tone mapping scheme. The tone mapping curve (TMC) is calculated ...
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      A 2.5MHz 55dB Switched-Current BandPass ΣΔ Modulator for AM Signal Conversion  [Presentation]

      Rosa Utrera, José Manuel de la; Pérez Verdú, Belén; Medeiro Hidalgo, Fernando; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 1997)
      We present a Switched-Current (SI) fourth-order bandpass ΣΔ modulator IC prototype. It uses fully-differential circuits in 0.8μm CMOS technology to obtain a Dynamic Range (DR) larger than 55dB at 2.5MHz center frequency ...
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      A 330μW, 64-channel neural recording sensor with embedded spike feature extraction and auto-calibration  [Presentation]

      Rodríguez Pérez, Alberto; Delgado Restituto, Manuel; Darie, Ángela; Soto Sánchez, Cristina; Fernández Jover, Eduardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2014)
      his paper reports an integrated 64-channel neural recording sensor. Neural signals are acquired, filtered, digitized and compressed in the channels. Additionally, each channel implements an auto-calibration mechanism which ...
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      A behavioral modeling concept and practice of CNN-UM VLSI implementations  [Presentation]

      Földesy, Péter; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2001)
      In this paper we introduce a novel simulation time bounded behavioral modeling technique that optimally selects the incorporated block models. The method has been specially developed for fast performance evaluation of large ...
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      A CMOS vision system on-chip with multicore sensory processing ar- chitecture for image analysis above 1,000F/s  [Presentation]

      Rodríguez Vázquez, Ángel Benito; Castro, Rafael; Jiménez Garrido, Francisco José; Morillas, Sergio (Spie, 2010)
      This paper describes a Vision-System-on-Chip (VSoC) capable of doing: image acquisition, image processing through on-chip embedded structures, and generation of pertinent reaction commands at thousand’s frame-per-second ...
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      A CMOS-3D reconfigurable architecture with in-pixel processing for feature detectors  [Presentation]

      Suárez Cambre, Manuel; Brea Sánchez, Víctor Manuel; Pardo, F.; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2012)
      This paper introduces a two-tier CMOS-3D architecture for generation of Gaussian pyramids, detection of extrema, and calculation of spatial derivatives in an image. Such tasks are included in modern feature detectors, which ...
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      A complete retargeting methodology for mixed-signal IC designs  [Presentation]

      Castro López, Rafael; Fernández, F. V.; Delgado Restituto, Manuel; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2001)
      In this paper, an efficient methodology to retargeting and reuse of embedded mixed-signal blocks is presented. Parametrized layout templates, accurate behavioral modeling of mixed-signal blocks, and appropriate mechanisms ...
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      A design environment for synthesis of embedded fuzzy controllers on FPGAs  [Presentation]

      Sánchez Solano, Santiago; Toro, Ernesto del; Brox Jiménez, María; Baturone Castillo, María Iluminada; Barriga Barros, Ángel (IEEE Transactions on Fuzzy Systems, 2010)
      This paper presents a design environment for the synthesis of embedded fuzzy controllers on FPGAs. It provides a novel implementation technique that allows accelerating the exploration of the design space of fuzzy control ...
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      A design methodology for application specific fuzzy integrated circuits  [Presentation]

      Barriga Barros, Ángel; Senhadji Navarro, Raouf; Jiménez Fernández, Carlos Jesús; Baturone Castillo, María Iluminada; Sánchez Solano, Santiago (1998)
      The main objective of this contribution is to present a design methodology for application specific fuzzy integrated circuits. This methodology is based on an specific architecture and a user-friendly design environment ...
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      A digital circuit for extracting singular points from fingerprint images  [Presentation]

      Arjona, Rosario; Baturone Castillo, María Iluminada (Institute of Electrical and Electronics Engineers, 2011)
      Since singular point extraction plays an important role in many fingerprint recognition systems, a digital circuit to implement such processing is presented herein. A novel algorithm that combines hardware efficiency with ...
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      A fingerprint biometric cryptosystem in FPGA  [Presentation]

      Arjona, Rosario; Baturone Castillo, María Iluminada (Institute of Electrical and Electronics Engineers, 2015)
      This paper presents the implementation of a complete fingerprint biometric cryptosystem in a Field Programmable Gate Array (FPGA). This is possible thanks to the use of a novel fingerprint feature, named QFingerMap, which ...
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      A FPP-oriented tone mapping technique for high dynamic range imagers using temporal and final exposure measurements  [Presentation]

      Vargas Sierra, Sonia; Liñán Cembrano, Gustavo; Roca Moreno, Elisenda; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2010)
      This paper presents a Dynamic Range improvement technique which is specially well-suited to be implemented in Focal Plane Processors due to its very limited computing requirements since only local memories and a comparator ...
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      A fuzzy controller using switched-capacitor techniques  [Presentation]

      Huertas Díaz, José Luis; Sánchez Solano, Santiago; Barriga Barros, Ángel; Baturone Castillo, María Iluminada (Institute of Electrical and Electronics Engineers, 1993)
      The use of Switched-Capacitor techniques to build a fuzzy controller is discussed in this contribution. Using a sequential architecture, the required building blocks are introduced and its realization is described. The ...
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      A fuzzy motion adaptive algorithm for interlaced-to-progressive conversion  [Presentation]

      Brox Jiménez, Piedad; Baturone Castillo, María Iluminada; Sánchez Solano, Santiago (2006)
      Interlaced-to-progressive algorithms are currently required by video format conversion systems in order to display a progressive scanning used in modern visualization equipments. Deinterlacing algorithms use interpolation ...
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      A fuzzy motion adaptive de-interlacing algorithm capable of detecting field repetition patterns  [Presentation]

      Brox Jiménez, Piedad; Baturone Castillo, María Iluminada; Sánchez Solano, Santiago (2007)
      A new motion adaptive algorithm for de-interlacing video is proposed in this paper. It employs two fuzzy systems to interpolate the missing lines of the transmission. One fuzzy system is used to evaluate the motion level ...
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      A hierarchical approach for the symbolic analysis of large analog integrated circuits  [Presentation]

      Guerra Vinuesa, Oscar; Roca Moreno, Elisenda; Fernández Fernández, Francisco Vidal; Rodríguez Vázquez, Ángel Benito (IEEE computer society digital library, 2000)
      This paper introduces a new hierarchical analysis methodology which incorporates approximation strategies during the analysis process. Consequently, the circuit sizes that can be analyzed increase dramatically, ...
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      A modulator/demodulator CMOS IC for chaotic encryption of audio  [Presentation]

      Delgado Restituto, Manuel; Rodríguez Vázquez, Ángel Benito; Liñán Cembrano, M. (Institute of Electrical and Electronics Engineers, 1995)
      This paper reports the first experimental verification of chaotic encryption of audio signals using integrated circuits. It is based on a gm-Cmodu¬ lator/demodulator analog CMOS IC that implements a 3rd-order nonlinear ...
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      A motion and edge adaptive interlaced-to-progressive conversion using fuzzy logic-based systems  [Presentation]

      Brox Jiménez, Piedad; Baturone Castillo, María Iluminada; Sánchez Solano, Santiago (2008)
      This paper presents an algorithm for video de-interlacing. The approach uses three fuzzy logic-based systems to adapt the interpolation strategy to the presence of motion and edges. Furthermore, the algorithm is able to ...
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      Un algoritmo en tiempo real para etiquetado de componentes conectados en imágenes  [Presentation]

      Calvo Gallego, Elisa; Brox Jiménez, Piedad; Sánchez Solano, Santiago (Instituto Nacional de Astrofísica, Óptica y Electrónica; Universidad de Sevilla, 2012-03)
      Esta comunicación presenta un algoritmo de dos pasadas para el etiquetado en tiempo real de los componentes conexos en una imagen. El algoritmo propuesto es una buena opción frente a otras alternativas de dos y múltiples ...