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Listar Artículos (Instituto de Microelectrónica de Sevilla (IMSE-CNM)) por autor "Leñero Bardallo, Juan Antonio"
Mostrando ítems 1-16 de 16
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Artículo
A 3.6 μ s latency asynchronous frame-free event-driven dynamic-vision-sensor
Leñero Bardallo, Juan Antonio; Serrano Gotarredona, María Teresa; Linares Barranco, Bernabé (Institute of Electrical and Electronics Engineers, 2011)This paper presents a 128 × 128 dynamic vision sensor. Each pixel detects temporal changes in the local illumination. A ...
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A Bio-Inspired AER Temporal Tri-Color Differentiator Pixel Array
Farian, Łukasz; Leñero Bardallo, Juan Antonio; Häfliger, Philipp (Institute of Electrical and Electronics Engineers, 2015)This article investigates the potential of a bio-inspired vision sensor with pixels that detect transients between three ...
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A Bio-Inspired Vision Sensor With Dual Operation and Readout Modes
Leñero Bardallo, Juan Antonio; Hafliger, Philipp Dominik; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2016)This paper presents a novel event-based vision sensor with two operation modes: intensity mode and spatial contrast ...
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A calibration technique for very low current and compact tunable neuromorphic cells: Application to 5-bit 20nA DACs
Leñero Bardallo, Juan Antonio; Serrano Gotarredona, María Teresa; Linares Barranco, Bernabé (Institute of Electrical and Electronics Engineers, 2008)Low current applications, like neuromorphic circuits, where operating currents can be as low as a few nanoamperes or less, ...
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A Customizable Thermographic Imaging System for Medical Image Acquisition and Processing
Leñero Bardallo, Juan Antonio; Rosa Vidal, Rafael de la; Padial Allue, Rubén; Ceballos Cáceres, Joaquín Francisco; Rodríguez Vázquez, Ángel Benito; Bernabeu Wittel, José (Institute of Electrical and Electronics Engineers, 2022)A custom system has been developed for medical image acquisition and processing in both the visible and the infrared (IR) ...
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A five-decade dynamic-range ambient-light-independent calibrated signed-spatial-contrast AER retina with 0.1-ms latency and optional time-to-first-spike mode
Leñero Bardallo, Juan Antonio; Serrano Gotarredona, María Teresa; Linares Barranco, Bernabé (Institute of Electrical and Electronics Engineers, 2010)Address Event Representation (AER) is an emergent technology for assembling modular multiblock bio-inspired sensory and ...
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A Low-Latency, Low-Power CMOS Sun Sensor for Attitude Calculation Using Photovoltaic Regime and On-Chip Centroid Computation
Gómez Merchán, Rubén; Leñero Bardallo, Juan Antonio; López Carmona, María; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2023)The demand for sun sensors has skyrocketed in the last years due to the huge expected deployment of satellites associated ...
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A Mobile Platform for Movement Tracking Based on a Fast-Execution-Time Optical-Flow Algorithm
Rosa Vidal, Rafael de la; Leñero Bardallo, Juan Antonio; Guerrero Rodríguez, José María; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2022)A multi-purpose mechanical platform to track moving objects in three-dimensional space has been developed. It is composed ...
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A Rad-hard On-chip CMOS Charge Detector with High Dynamic Range
Saenz-Noval, Jorge J.; Leñero Bardallo, Juan Antonio; Carmona Galán, Ricardo; Gontard, Lionel C. (Institute of Electrical and Electronics Engineers, 2023)This article introduces a CMOS charge detector tailored for measuring ionizing radiation in a wide range of fluences. It ...
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A self-powered asynchronous image sensor with TFS operation
Gómez Merchán, Rubén; Leñero Bardallo, Juan Antonio; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers Inc., 2023-04-01)This article presents a self-powered image sensor with a novel pixel architecture with energy harvesting capabilities. ...
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A Wide Linear Dynamic Range Image Sensor Based on Asynchronous Self-Reset and Tagging of Saturation Events
Leñero Bardallo, Juan Antonio; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2017)We report a high dynamic range (HDR) image sensor with a linear response that overcomes some of the limitations of sensors ...
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Asynchronous spiking pixel with programmable sensitivity to illumination
Leñero Bardallo, Juan Antonio; Delgado Restituto, Manuel ; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2018)A spiking pixel to be used in image sensor arrays for asynchronous frame-based operation is presented. The pixel features ...
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Enhanced Sensitivity of CMOS Image Sensors by Stacked Diodes
Leñero Bardallo, Juan Antonio; Delgado Restituto, Manuel; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2016)We have investigated and compared the performance of photodiodes built with stacked p/n junctions operating in parallel ...
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Smart imaging for power-efficient extraction of Viola-Jones local descriptors
Fernández Berni, Jorge; Carmona Galán, Ricardo; Río Fernández, Rocío del; Leñero Bardallo, Juan Antonio; Suárez Cambre, Manuel; Rodríguez Vázquez, Ángel Benito (Society of Photo-Optical Instrumentation Engineers, 2014)In computer vision, local descriptors permit to summarize relevant visual cues through feature vectors. These vectors ...
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Sun Sensor Based on a Luminance Spiking Pixel Array
Leñero Bardallo, Juan Antonio; Farian, Lukasz; Guerrero Rodríguez, Jesús Manuel; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2017)We present a novel sun sensor concept. It is the very first sun sensor built with an address event representation spiking ...
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The stochastic I-Pot: A circuit block for programming bias currents
Serrano Gotarredona, Rafael; Camuñas Mesa, Luis Alejandro; Serrano Gotarredona, María Teresa; Leñero Bardallo, Juan Antonio; Linares Barranco, Bernabé (Institute of Electrical and Electronics Engineers, 2007)In this brief, we present the “Stochastic I-Pot.” It is a circuit element that allows for digitally programming a precise ...