Ponencia
1D Cellular Automata for Pulse Width Modulated Compressive Sampling CMOS Image Sensors
Autor/es | Trevisi, Marco
Carmona Galán, Ricardo Rodríguez Vázquez, Ángel Benito |
Departamento | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo |
Fecha de publicación | 2018 |
Fecha de depósito | 2019-11-25 |
Publicado en |
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ISBN/ISSN | 978-3-8007-4766-5 |
Resumen | Compressive sensing (CS) is an alternative to the Shannon limit when the signal to be acquired is known to be sparse or compressible in some domain. Since compressed samples are non-hierarchical packages of information, ... Compressive sensing (CS) is an alternative to the Shannon limit when the signal to be acquired is known to be sparse or compressible in some domain. Since compressed samples are non-hierarchical packages of information, this acquisition technique can be employed to overcome channel losses and restricted data rates. The quality of the compressed samples that a sensor can deliver is affected by the measurement matrix used to collect them. Measurement matrices usually employed in CS image sensors are recursive random-like binary matrices obtained using pseudo-random number generators (PRNG). In this paper we analyse the performance of these PRNGs in order to understand how their non-idealities affect the quality of the compressed samples. We present the architecture of a CMOS image sensor that uses class-III elementary cellular automata (ECA) and pixel pulse width modulation (PWM) to generate onchip a measurement matrix and high the quality compressed samples. |
Identificador del proyecto | TEC2015-66878-C3-1-R
TIC 2338-2013 N000141410355 MZO-2017-291062 |
Cita | Trevisi, M., Carmona Galán, R. y Rodríguez Vázquez, Á.B. (2018). 1D Cellular Automata for Pulse Width Modulated Compressive Sampling CMOS Image Sensors. En The 16th International Workshop on Cellular Nanoscale Networks and their Applications (66-69), Budapest, Hungría: Institute of Electrical and Electronics Engineers. |
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