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

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Autor: Leñero Bardallo, Juan Antonio
Carmona Galán, Ricardo
Rodríguez Vázquez, Ángel Benito
Departamento: Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo
Fecha: 2015
Tipo de documento: Ponencia
Resumen: This 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
Cita: Leñero Bardallo, J.A., Carmona Galán, R. y Rodríguez Vázquez, Á.B. (2015). A high dynamic range image sensor with linear response based on asynchronous event detection.
Tamaño: 876.5Kb
Formato: PDF

URI: https://hdl.handle.net/11441/78521

DOI: 10.1109/ECCTD.2015.7300079

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