Perfil del autor: Leñero Bardallo, Juan Antonio
Datos institucionales
| Nombre | Leñero Bardallo, Juan Antonio |
| Departamento | Electrónica y Electromagnetismo |
| Área de conocimiento | Electrónica |
| Categoría profesional | Profesor Titular de Universidad |
| Correo electrónico | Solicitar |
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Estadísticas
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Nº publicaciones
57
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Nº visitas
5159
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Nº descargas
6129
| Publicaciones |
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Trabajo Fin de Grado
 Diseño de un sensor de imagen asíncrono de alto rango dinámico
(2023)
En el presente Trabajo de Fin de Grado hemos llevado a cabo el diseño y validación de un pixel tipo Pulse Width Modulation ... |
Trabajo Fin de Grado
Diseño de un sensor de imagen con compresión logarítmica y diodos operando en régimen fotovoltaico
(2023)
Desde la invención del primer sensor de imagen, el objetivo cardinal de la electrónica ha sido simular el comportamiento ... |
Trabajo Fin de Grado
Estudio comparativo y diseño de fotodiodos integrados y estructuras de test en tecnología CMOS para recolección de energía solar
(2023)
En el presente Trabajo de Fin de Grado, se realiza un estudio comparativo de distintos fotodiodos integrables en tecnología ... |
Artículo
 A self-powered asynchronous image sensor with TFS operation
(Institute of Electrical and Electronics Engineers Inc., 2023)
This article presents a self-powered image sensor with a novel pixel architecture with energy harvesting capabilities. ... |
Artículo
A Low-Latency, Low-Power CMOS Sun Sensor for Attitude Calculation Using Photovoltaic Regime and On-Chip Centroid Computation
(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 ... |
Artículo
A Rad-hard On-chip CMOS Charge Detector with High Dynamic Range
(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 ... |
Artículo
TEMAS: A Flexible Non-AI Algorithm for Metrology of Single-Core and Core-Shell Nanoparticles from TEM Images
(Wiley-Blackwell, 2023)
An essential application of electron microscopy is to provide feedback to tune the fabrication of nanoparticles (NPs). ... |
Artículo
A Customizable Thermographic Imaging System for Medical Image Acquisition and Processing
(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) ... |
Artículo
Thermography as a Method for Bedside Monitoring of Infantile Hemangiomas
(Multidisciplinary Digital Publishing Institute (MDPI), 2022)
Infantile hemangiomas occur in 3 to 10% of infants. To predict the clinical course and counsel on treatment, it is crucial ... |
Artículo
A Mobile Platform for Movement Tracking Based on a Fast-Execution-Time Optical-Flow Algorithm
(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 ... |
Capítulo de Libro
¿Cuáles son los sustitutos de los transistores actuales? Actividades de debate y estudio dirigidas en Electrónica de Dispositivos
(Universidad de Sevilla, 2022)
La presente comunicación resume los resultados obtenidos tras la implementación de un Ciclo de Mejora en el Aula (CIMA) ... |
Trabajo Fin de Grado
Diseño de un sensor solar asíncrono para el control de la actitud en navegación espacial
(2022)
En este Trabajo Fin de Grado se ha diseñado el píxel base de un sensor solar asíncrono. Los sensores solares son sistemas ... |
| Trabajo Fin de Grado |
Trabajo Fin de Grado
Diseño electrónico de un píxel tipo DVS
(2021)
El presente Trabajo de Fin de Grado trata el dise˜no de un p´ıxel de tipo DVS (Dynamic Vision Sensor) con una tecnolog´ıa ... |
Trabajo Fin de Máster
Estudio de la técnica de adquisición de datos quanta imaging en sensores de imagen asíncronos.
(2021)
En este Trabajo de Fin de Máster se realiza un estudio de viabilidad sobre la aplicación de la técnica de adquisición de ... |
Artículo
Emulation of circuits under test using low‐cost embedded platforms
(Multidisciplinary Digital Publishing Institute (MDPI), 2021)
Electrical engineering education requires the development of the specific ability and skills to address the design and ... |
Trabajo Fin de Máster
Caracterización experimental de prototipos de sensores solares para navegación espacial
(2021)
En este Trabajo Fin de Máster (TFM) se han caracterizado experimentalmente dos prototipos de sensores solares asíncronos ... |
Trabajo Fin de Grado
Quantum dots: concept and application for image sensors
(2021)
The aim of this Bachelor’s Thesis is to introduce the concept of quantum dots and their possible application to photodetection. ... |
Trabajo Fin de Máster
Sistema de seguimiento tridimensional basado en un array de sensores de flujo óptico implementados con cámaras de baja resolución
(2020)
En este Trabajo Fin de Máster se ha diseñado, implementado y testado un sistema de seguimiento tridimensional basado en ... |
Trabajo Fin de Grado
Calibración de sensores infrarrojos utilizando la plataforma Raspberry Pi
(2020)
El presente Trabajo Fin de Grado parte de un proyecto colaborativo entre la Universidad de Sevilla y el Departamento de ... |
Trabajo Fin de Máster
Diseño de un sensor de imagen asíncrono autoalimentado mediante captación de energía solar
(2020)
En este Trabajo de Fin de Máster se ha diseñado un sensor asíncrono con una arquitectura del tipo Time-to-First-Spike ... |
Ponencia
Vertically Stacked CMOS-compatible Photodiodes for Scanning Electron Microscopy
(Institute of Electrical and Electronics Engineers (IEEE), 2020)
This paper reports the use of vertically stacked photodiodes as compact solid-state spectrometers for transmission scanning ... |
Trabajo Fin de Máster
Diseño de un sensor solar basado en eventos
(2019)
Explicar en qué consiste un sensor solar y dar una visión general sobre el estado de arte y el cambio de paradigma que suponen los sensores solares basados en eventos. |
Trabajo Fin de Máster
Study of the impact of lithography techniques and the current fabrication processes on the design rules of tridimensional fabrication technologies
(2019)
Working for the photolithography tool manufacturer leader sometimes gives me the impression of how complex and specific ... |
Artículo
Applications of event‐based image sensors—Review and analysis
(Wiley, 2018)
The spread of event‐driven asynchronous vision sensors during the last years has increased significantly the industrial ... |
Artículo
¿Cómo mejorar la docencia en electrónica de dispositivos? Guía de actividades
(Universidad de Sevilla, 2018)
La implementación de un Ciclo de Mejora Docente (CDM) se ha realizado en la asignatura “Electrónica Física”. La asignatura ... |
Artículo
Asynchronous spiking pixel with programmable sensitivity to illumination
(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 ... |
Artículo
On the Analysis and Detection of Flames Withan Asynchronous Spiking Image Sensor
(IEEE, 2018)
We have investigated the capabilities of a customasynchronous spiking image sensor operating in the ... |
Artículo
CMOS Vision Sensors: Embedding Computer Vision at Imaging Front-Ends
(IEEE, 2018)
CMOS Image Sensors (CIS) are key for imaging technol-ogies. These chips are conceived for capturing opticalscenes ... |
Artículo
A Wide Linear Dynamic Range Image Sensor Based on Asynchronous Self-Reset and Tagging of Saturation Events
(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 ... |
Ponencia
Real-time phase correlation based integrated system for seizure detection
(The Society of Photo-Optical Instrumentation Engineers, 2017)
This paper reports a low area, low power, integer-based digital processor for the calculation of phase synchronization ... |
Ponencia
Towards bioinspired close-loop local motor control: a simulated approach supporting neuromorphic implementations
(IEEE Computer Society, 2017)
Despite being well established in robotics, classical motor controllers have several disadvantages: they pose a ... |
Ponencia
In the quest of vision-sensors-on-chip: Pre-processing sensors for data reduction
(Society for Imaging Science and Technology, 2017)
This paper shows that the implementation of vision systems benefits from the usage of sensing front-end chips with embedded ... |
Artículo
Sun Sensor Based on a Luminance Spiking Pixel Array
(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 ... |
Ponencia
A sun sensor implemented with an asynchronous luminance vision sensor
(Institute of Electrical and Electronics Engineers, 2017)
A sun sensor implemented with a spiking pixel matrix is reported. It is the very first one based on an asynchronous ... |
Ponencia
Pipeline AER arbitration with event aging
(Institute of Electrical and Electronics Engineers, 2017)
We present a simple circuit to handle communication between cells of neuromorphic arrays. It allows cells to operate ... |
Ponencia
Integer-based digital processor for the estimation of phase synchronization between neural signals
(Institute of Electrical and Electronics Engineers, 2016)
This paper reports a low area, low power, integer-based neural digital processor for the calculation of phase synchronization ... |
Ponencia
Pixel-wise parameter adaptation for single-exposure extension of the image dynamic range
(Association for Computing Machinery, 2016)
High dynamic range imaging is central in application fields like surveillance, intelligent transportation and advanced ... |
Artículo
A Bio-Inspired Vision Sensor With Dual Operation and Readout Modes
(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 ... |
Artículo
Enhanced Sensitivity of CMOS Image Sensors by Stacked Diodes
(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 ... |
Artículo
A Bio-Inspired AER Temporal Tri-Color Differentiator Pixel Array
(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 ... |
Ponencia
A high dynamic range image sensor with linear response based on asynchronous event detection
(Institute of Electrical and Electronics Engineers, 2015)
This paper investigates the potential of an image sensor that combines event-based asynchronous outputs with conventional ... |
Capítulo de Libro
Towards an ultra‐low‐power low‐cost wireless visual sensor node for fine‐grain detection of forest fires
(Universidade de Coimbra, 2014)
Advances in electronics, sensor technologies, embedded hardware and software are boosting the application scenarios of ... |
Ponencia
Form Factor Improvement of Smart-Pixels for Vision Sensors through 3-D Vertically- Integrated Technologies
(Institute of Electrical and Electronics Engineers, 2014)
While conventional CMOS active pixel sensors embed only the circuitry required for photo-detection, pixel addressing and ... |
Artículo
Smart imaging for power-efficient extraction of Viola-Jones local descriptors
(Society of Photo-Optical Instrumentation Engineers, 2014)
In computer vision, local descriptors permit to summarize relevant visual cues through feature vectors. These vectors ... |
Ponencia
Review of ADCs for imaging
(Society of Photo-Optical Instrumentation Engineers, 2014)
The aim of this article is to guide image sensors designers to optimize the analog-to-digital conversion of pixel outputs. ... |
Capítulo de Libro
Fire detection with a frame-less vision sensor working in the NIR band
(Universidad de Coimbra, 2014)
This paper draws the attention of the community about the capabilities of an emerging generation of bio-inspired vision ... |
Artículo
A 3.6 μ s latency asynchronous frame-free event-driven dynamic-vision-sensor
(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 ... |
Ponencia
A bioinspired 128x128 pixel dynamic-vision-sensor
(2011)
This paper presents a 128x128 dynamic vision sensor. Each pixel detects temporal changes in the local illumination. A ... |
Tesis Doctoral
Estudio, diseño, implementación y test de retinas visuales VLSI sensoras de contraste espacial y temporal
(2010)
En los últimos años hemos podido apreciar un crecimiento exponencial en las ventas de sistemas de visión. Dicha tendencia ... |
Artículo
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
(Institute of Electrical and Electronics Engineers, 2010)
Address Event Representation (AER) is an emergent technology for assembling modular multiblock bio-inspired sensory and ... |
Ponencia
A signed spatial contrast event spike retina chip
(IEEE Computer Society, 2010)
Reported AER (Address Event Representation) contrast retinae perform a contrast computation based on the ratio between a ... |
Ponencia
A Mismatch Calibrated Bipolar Spatial Contrast AER Retina with Adjustable Contrast Threshold
(IEEE Computer Society, 2009)
Address Event Representation (AER) is an emergent technology for assembling modular multi-blocks bio-inspired sensory and ... |
Ponencia
A spatial calibrated AER contrast retina with adjustable contrast threshold
(2009)
Address Event Representation (AER) is an emergent technology for assembling modular multi-blocks bio-inspired sensory and ... |
Ponencia
Compact Calibration Circuit for Large Neuromorphic Arrays
(IEEE Computer Society, 2008)
Low current applications, like neuromorphic circuits, where operating currents can be as low as few nano amps or less, ... |
Artículo
A calibration technique for very low current and compact tunable neuromorphic cells: Application to 5-bit 20nA DACs
(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, ... |
Artículo
The stochastic I-Pot: A circuit block for programming bias currents
(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 ... |