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Concurrent focal-plane generation of compressed samples fromtime-encoded pixel values

 

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Opened Access Concurrent focal-plane generation of compressed samples fromtime-encoded pixel values
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Author: Trevisi, M.
Bandala, H.C.
Fernández Berni, Jorge
Carmona Galán, Ricardo
Rodríguez Vázquez, Ángel Benito
Department: Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo
Date: 2018
Published in: Design, Automation & Test in Europe Conference & Exhibition (DATE) (2018), p 1316-1320
ISBN/ISSN: 1558-1101
Document type: Presentation
Abstract: Compressive sampling allows wrapping the relevant content of an image in a reduced set of data. It exploits the sparsity of natural images. This principle can be employed to deliver images over a network under a restricted data rate and still receive enough meaningful information. An efficient implementation of this principle lies in the generation of the compressed samples right at the imager. Otherwise, i. e. digitizing the complete image and then composing the compressed samples in the digital plane, the required memory and processing resources can seriously compromise the budget of an autonomous camera node. In this paper we present the design of a pixel architecture that encodes light intensity into time, followed by a global strategy to pseudo-randomly combine pixel values and generate, on-chip and on-line, the compressed samples.
Cite: Trevisi, M., Bandala, H.C., Fernández Berni, J., Carmona Galán, R. y Rodríguez Vázquez, Á.B. (2018). Concurrent focal-plane generation of compressed samples fromtime-encoded pixel values. En Design, Automation & Test in Europe Conference & Exhibition (DATE) (1316-1320), Dresden, Germany: IEEE.
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URI: https://hdl.handle.net/11441/88375

DOI: 10.23919/DATE.2018.8342217

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