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Listar Artículos (Instituto de Microelectrónica de Sevilla (IMSE-CNM)) por autor "Vornicu, Ion"
Mostrando ítems 1-9 de 9
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Artículo
A CMOS Digital SiPM With Focal-Plane Light-Spot Statistics for DOI Computation
Vornicu, Ion; Bandi, Franco; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2017)Silicon photomultipliers can be used to infer the depth-of-interaction (DOI) in scintillator crystals. DOI can help to ...
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Artículo
A CMOS Imager for Time-of-Flight and Photon Counting Based on Single Photon Avalanche Diodes and In-Pixel Time-to-Digital Converters
Vornicu, Ion; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Editura Academiei Române, 2014)The design of a CMOS image sensor based on single-photon avalanche-diode (SPAD) array with in-pixel time-to-digital converter ...
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Artículo
A Low-Resources TDC for Multi-Channel Direct ToF Readout Based on a 28-nm FPGA
Parsakordasiabi, Mojtaba; Vornicu, Ion; Rodríguez Vázquez, Ángel Benito; Carmona Galán, Ricardo (Multidisciplinary Digital Publishing Institute (MDPI), 2021)In this paper, we present a proposed field programmable gate array (FPGA)-based time-to-digital converter (TDC) architecture ...
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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
Compact CMOS active quenching/recharge circuit for SPAD arrays
Vornicu, Ion; Carmona Galán, Ricardo; Pérez Verdú, Belén; Rodríguez Vázquez, Ángel Benito (Wiley-Blackwell, 2016)Avalanche diodes operating in Geiger mode are able to detect single photon events. They can be employed to photon counting ...
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Artículo
Compact Real-Time Inter-Frame Histogram Builder for 15-Bits High-Speed ToF-Imagers Based on Single-Photon Detection
Vornicu, Ion; Darie, Ángela; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2019)Time-of-flight (ToF) image sensors based on single-photon detection, i.e., SPADs, require some filtering of pixel readings. ...
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Artículo
Compensation of PVT Variations in ToF Imagers with In-Pixel TDC
Rodríguez Vázquez, Ángel Benito; Vornicu, Ion; Carmona Galán, Ricardo (MDPI, 2017)The design of a direct time-of-flight complementary metal-oxide-semiconductor (CMOS) image sensor (dToF-CIS) based on a ...
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Artículo
Real-Time Inter-Frame Histogram Builder for SPAD Image Sensors
Vornicu, Ion; Carmona Galán, Ricardo; Rodríguez Vázquez, Ángel Benito (Institute of Electrical and Electronics Engineers, 2018)CMOS image sensors based on single-photon avalanche-diodes (SPAD) are suitable for 2D and 3D vision. Limited by uncorrelated ...