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Title

A high dynamic range image sensor with linear response based on asynchronous event detection

AuthorsLeñero-Bardallo, J. A. ; Carmona-Galán, R. ; Rodríguez-Vázquez, Ángel
KeywordsVision Sensor
AER
High Dynamic Range;
Linear
Issue Date2016
PublisherInstitute of Electrical and Electronics Engineers
CitationEuropean Conference on Circuit Theory and Design (ECCTD) 2015: 1-4
AbstractThis paper investigates the potential of an image sensor that combines event-based asynchronous outputs with conventional integration of photocurrents. Pixels voltages can be read out following a traditional approach with a source follower and analog-to-digital converter. Furthermore, pixels have circuitry to implement Pulse Density Modulation (PDM) sending out pulses with a frequency that is proportional to the photocurrent. Both read-out approaches operate simultaneously. Their information is combined to render high dynamic range images. In this paper, we explain the new vision sensor concept and we develop a theoretical analysis of the expected performance in standard AMS 0.18mm HV technology. Moreover, we provide a description of the vision sensor architecture and its main blocks
Publisher version (URL)http://dx.doi.org/10.1109/ECCTD.2015.7300079
URIhttp://hdl.handle.net/10261/130309
DOI10.1109/ECCTD.2015.7300079
Appears in Collections:(IMSE-CNM) Artículos
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