Improved Contrast Sensitivity DVS and its Application to Event-Driven Stereo Vision

This paper presents a new DVS sensor with one order of magnitude improved contrast sensitivity over previous reported DVSs. This sensor has been applied to a bio-inspired event-based binocular system that performs 3D event-driven reconstruction of a scene. Events from two DVS sensors are matched by using precise timing information of their ocurrence. To improve matching reliability, satisfaction of epipolar geometry constraint is required, and simultaneously available information on the orientation is used as an additional matching constraint.Ministerio de Economía y Competitividad PRI-PIMCHI-2011-0768Ministerio de Economía y Competitividad TEC2009-10639-C04-01Junta de Andalucía TIC-609

Using FPGA for visuo-motor control with a silicon retina and a humanoid robot

The address-event representation (AER) is a neuromorphic communication protocol for transferring asynchronous events between VLSI chips. The event information is transferred using a high speed digital parallel bus. This paper present an experiment based on AER for visual sensing, processing and finally actuating a robot. The AER output of a silicon retina is processed by an AER filter implemented into a FPGA to produce a mimicking behaviour in a humanoid robot (The RoboSapiens V2). We have implemented the visual filter into the Spartan II FPGA of the USB-AER platform and the Central Pattern Generator (CPG) into the Spartan 3 FPGA of the AER-Robot platform, both developed by authors.Unión Europea IST-2001-34124 (CAVIAR)Ministerio de Ciencia y Tecnología TIC-2003-08164-C03-0

An AER handshake-less modular infrastructure PCB with x8 2.5Gbps LVDS serial links

Nowadays spike-based brain processing emulation is taking off. Several EU and others worldwide projects are demonstrating this, like SpiNNaker, BrainScaleS, FACETS, or NeuroGrid. The larger the brain process emulation on silicon is, the higher the communication performance of the hosting platforms has to be. Many times the bottleneck of these system implementations is not on the performance inside a chip or a board, but in the communication between boards. This paper describes a novel modular Address-Event-Representation (AER) FPGA-based (Spartan6) infrastructure PCB (the AER-Node board) with 2.5Gbps LVDS high speed serial links over SATA cables that offers a peak performance of 32-bit 62.5Meps (Mega events per second) on board-to-board communications. The board allows back compatibility with parallel AER devices supporting up to x2 28-bit parallel data with asynchronous handshake. These boards also allow modular expansion functionality through several daughter boards. The paper is focused on describing in detail the LVDS serial interface and presenting its performance.Ministerio de Ciencia e Innovación TEC2009-10639-C04-02/01Ministerio de Economía y Competitividad TEC2012-37868-C04-02/01Junta de Andalucía TIC-6091Ministerio de Economía y Competitividad PRI-PIMCHI-2011-076

El análisis no-médico ¿una controversia superada?

En este trabajo llevamos a cabo una reconstrucción histórica de la controversia en torno al análisis no-médico (laico, lego o profano), que enfrentó a los norteamericanos y los centroeuropeos desde mediados los años veinte a los cuarenta del pasado siglo, habiendo sido Theodor Reik una figura central en todo ello. A partir de la institucionalización de la psicología y la aparición de las diversas psicoterapias, el asunto tomó un camino razonable, asumiéndose hoy la posibilidad de la práctica del análisis clínico por los profesionales no médicos en todo el mundo occidental.In this paper we try to scope an historical reconstruction of the debate, which turned into a bitter confrontation on regard of lay analysis between the North American and the European psychoana- lytic schools from the mid 20s through the 40s of the past century in which Theodor Reik played a central role. Nevertheless, with the incorporation of psychology to the academic institutions and the arrival of other forms of psychotherapy, the ques- tion about the lay analysis began to be held in a more open manner, allowing the non- medical doctors to progressively incorpo- rate into the psychotherapy practice

Una contribución a la historia del psicoanálisis en España

Referencia de la publicación original: Sánchez-Barranco Ruiz, A., Sánchez Barranco Vallejo, P., & Balbuena Rivera, F. (1996). Una contribución a la historia del psicoanálisis en España. Apuntes de Psicología, 46, 5-20.Con este trabajo pretendemos contribuir a la reconstrucción histórica del asentamiento del psicoanálisis en España, para lo que recogemos algunos detalles de las diversas ediciones de las obras completas de Freud en nuestra lengua, así como de su correspondencia, además de una reflexión crítica sobre las consideraciones que hizo Ortega en torno al psicoanálisis, algunas notas sobre los pioneros que posibilitaron el desarrollo de este saber entre nosotros y ciertas referencias respecto al nacimiento de las principales instituciones psicoanalíticas en España.In this paper we intend to make a contribution to the historical reconstruction of the development psychoanalysis in Spain. Some details from the different editions in our language of Freud’s complete works and his correspondence are gathered. A critical reflection on the considerations Ortega made about psychoanalysis, some notes about the pioneers that made possible the development of this field among us and certain references on the birth of the main psychoanalytic institutions in Spain are also included

A USB3.0 FPGA Event-based Filtering and Tracking Framework for Dynamic Vision Sensors

Dynamic vision sensors (DVS) are frame-free sensors with an asynchronous variable-rate output that is ideal for hard real-time dynamic vision applications under power and latency constraints. Post-processing of the digital sensor output can reduce sensor noise, extract low level features, and track objects using simple algorithms that have previously been implemented in software. In this paper we present an FPGA-based framework for event-based processing that allows uncorrelated-event noise removal and real-time tracking of multiple objects, with dynamic capabilities to adapt itself to fast or slow and large or small objects. This framework uses a new hardware platform based on a Lattice FPGA which filters the sensor output and which then transmits the results through a super-speed Cypress FX3 USB microcontroller interface to a host computer. The packets of events and timestamps are transmitted to the host computer at rates of 10 Mega events per second. Experimental results are presented that demonstrate a low latency of 10us for tracking and computing the center of mass of a detected object.Ministerio de Economía y Competitividad TEC2012-37868-C04-0

Unified description of structure and reactions: implementing the Nuclear Field Theory program

The modern theory of the atomic nucleus results from the merging of the liquid drop (Niels Bohr and Fritz Kalckar) and of the shell model (Marie Goeppert Meyer and Axel Jensen), which contributed the concepts of collective excitations and of independent-particle motion respectively. The unification of these apparently contradictory views in terms of the particle-vibration (rotation) coupling (Aage Bohr and Ben Mottelson) has allowed for an ever increasingly complete, accurate and detailed description of the nuclear structure, Nuclear Field Theory (NFT, developed by the Copenhagen-Buenos Aires collaboration) providing a powerful quantal embodiment. In keeping with the fact that reactions are not only at the basis of quantum mechanics (statistical interpretation, Max Born) , but also the specific tools to probe the atomic nucleus, NFT is being extended to deal with processes which involve the continuum in an intrinsic fashion, so as to be able to treat them on an equal footing with those associated with discrete states (nuclear structure). As a result, spectroscopic studies of transfer to continuum states could eventually use at profit the NFT rules, extended to take care of recoil effects. In the present contribution we review the implementation of the NFT program of structure and reactions, setting special emphasis on open problems and outstanding predictions.Comment: submitted to Physica Scripta to the Focus Issue on Nuclear Structure: Celebrating the 1975 Nobel Priz