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Listar Instituto de Microelectrónica de Sevilla (IMSE-CNM) por autor "Carmona Galán, Ricardo"
Mostrando ítems 21-40 de 118
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Ponencia
A QVGA Vision Sensor with Multi-functional Pixels for Focal-Plane Programmable Obfuscation
Fernández Berni, Jorge; Carmona Galán, Ricardo; Río Fernández, Rocío del; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2014)Privacy awareness constitutes a critical aspect for smart camera networks. An ideal awless protection of sensitive information ...
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Artículo
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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Ponencia
A sun sensor implemented with an asynchronous luminance vision sensor
Leñero Bardallo, Juan Antonio; Guerrero Rodríguez, José María; Farian, Łukasz; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (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 ...
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Ponencia
A VLSI-oriented and power-efficient approach for dynamic texture recognition applied to smoke detection
Fernández Berni, Jorge; Carmona Galán, Ricardo; Carranza González, Luis (2009)The recognition of dynamic textures is fundamental in processing image sequences as they are very common in natural scenes. ...
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Artículo
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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Artículo
ACE16K: The Third Generation of Mixed-Signal SIMD-CNN ACE Chips Toward VSoCs
Rodríguez Vázquez, Ángel Benito; Liñán Cembrano, Gustavo; Carranza González, Luis; Roca Moreno, Elisenda; Carmona Galán, Ricardo; Jiménez Garrido, Francisco José; Domínguez Castro, Rafael; Espejo Meana, Servando Carlos (Institute of Electrical and Electronics Engineers, 2004)Today, with 0.18-μm technologies mature and stable enough for mixed-signal design with a large variety of CMOS compatible ...
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Artículo
All-MOS implementation of RC networks for time-controlled Gaussian spatial filtering
Fernández Berni, Jorge; Carmona Galán, Ricardo (Wiley-Blackwell, 2012)This paper addresses the design and VLSI implementation of MOS-based RC networks capable of performing time-controlled ...
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Artículo
An 0.5-μm CMOS analog random access memory chip for TeraOPS speed multimedia video processing
Carmona Galán, Ricardo; Espejo Meana, Servando Carlos; Domínguez Castro, Rafael; Rodríguez Vázquez, Ángel Benito; Roska, Tamás; Kozek, Tibor; Chua, Leon O. (Institute of Electrical and Electronics Engineers, 1999)Data compressing, data coding, and communications in object-oriented multimedia applications like telepresence, computer-aided ...
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Ponencia
An Experimentally-Validated Verilog-A SPAD Model Extracted from TCAD Simulation
López Martínez, Juan Manuel; Vornicu, Ion; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2018)Single-photon avalanche diodes (SPAD) are photodetectors with exceptional characteristics. This paper proposes a new ...
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Ponencia
An ultra-low-power voltage-mode asynchronous WTA-LTA circuit
Fernández Berni, Jorge; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2013)This paper presents an asynchronous mixed-signal WTA-LTA circuit conceived to carry out local minimummaximum indexing ...
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Ponencia
Analog weight buffering strategy for CNN chips
Liñán Cembrano, Gustavo; Rodríguez Vázquez, Ángel Benito; Carmona Galán, Ricardo; Espejo Meana, Servando Carlos; Domínguez Castro, Rafael (Institute of Electrical and Electronics Engineers, 2003)Large, gray-scale CNN chips employ analog signals to achieve high-density in the internal distribution of the template ...
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Artículo
Architecture-level optimization on digital silicon photomultipliers for medical imaging
Bandi, Franco; Ilisie, Victor; Vornicu, Ion; Carmona Galán, Ricardo; Benlloch, José M.; Rodríguez Vázquez, Ángel Benito (Multidisciplinary Digital Publishing Institute (MDPI), 2022)Silicon photomultipliers (SiPMs) are arrays of single-photon avalanche diodes (SPADs) connected in parallel. Analog silicon ...
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Artículo
Arrayable Voltage-Controlled Ring-Oscillator for Direct Time-of-Flight Image Sensors
Vornicu, Ion; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2017)Direct time-of-flight (d-ToF) estimation with high frame rate requires the incorporation of a time-to-digital converter ...
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Artículo
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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Ponencia
Bio-inspired analog parallel array processor chip with programmable spatio-temporal dynamics
Carmona Galán, Ricardo; Jiménez Garrido, Francisco José; Domínguez Castro, Rafael; Espejo Meana, Servando Carlos; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2002)A bio-inspired model for an analog parallel array processor (APAP), based on studies on the vertebrate retina, permits the ...
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Artículo
Bottom-up performance analysis of focal-plane mixed-signal hardware for Viola–Jones early vision tasks
Fernández Berni, Jorge; Carmona Galán, Ricardo; Río Fernández, Rocío del; Rodríguez Vázquez, Ángel Benito (John Wiley & Sons, 2015)Focal-plane mixed-signal arrays have traditionally been designed according to the general claim that moderate accuracy in ...
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Ponencia
Characterization of electrical crosstalk in 4T-APS arrays using TCAD simulations
López Martínez, Juan Manuel; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2017)TCAD simulations have been conducted on a CMOS image sensor in order to characterize the electrical component of the ...
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Artículo
CMOS optical-sensor array with high output current levels and automatic signal-range centring
Espejo Meana, Servando Carlos; Domínguez Castro, Rafael; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institution of Engineering and Technology, 1994)A CMOS compatible photosensor with high output current levels, and an area-efficient scheme for automatic signal-range ...
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Ponencia
CMOS realization of a 2-layer CNN universal machine chip
Carmona Galán, Ricardo; Jiménez Garrido, Francisco José; Domínguez Castro, Rafael; Espejo Meana, Servando Carlos; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2002)Some of the features of the biological retina can be modelled by a cellular neural network (CNN) composed of two dynamically ...
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Artículo
CMOS-3D smart imager architectures for feature detection
Suárez Cambre, Manuel; Brea Sánchez, Víctor Manuel; Fernández Berni, Jorge; Carmona Galán, Ricardo; Liñán Cembrano, Gustavo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2012)This paper reports a multi-layered smart image sensor architecture for feature extraction based on detection of interest ...