Article
A Bio-Inspired Vision Sensor With Dual Operation and Readout Modes
Author/s | Leñero Bardallo, Juan Antonio
Hafliger, Philipp Dominik Carmona Galán, Ricardo Rodríguez Vázquez, Ángel Benito |
Department | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo |
Publication Date | 2016 |
Deposit Date | 2019-12-10 |
Published in |
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Abstract | This paper presents a novel event-based vision sensor with two operation modes: intensity mode and spatial contrast detection. They can be combined with two different readout approaches: pulse density modulation and ... This paper presents a novel event-based vision sensor with two operation modes: intensity mode and spatial contrast detection. They can be combined with two different readout approaches: pulse density modulation and time-to-first spike. The sensor is conceived to be a node of an smart camera network made up of several independent an autonomous nodes that send information to a central one. The user can toggle the operation and the readout modes with two control bits. The sensor has low latency (below 1 ms under average illumination conditions), low power consumption (19 mA), and reduced data flow, when detecting spatial contrast. A new approach to compute the spatial contrast based on inter-pixel event communication less prone to mismatch effects than diffusive networks is proposed. The sensor was fabricated in the standard AMS4M2P 0.35-um process. A detailed system-level description and experimental results are provided. |
Project ID. | N00014-14-1-0355
TEC2012- 38921-C02-02 P12-TIC-2338 IPT-2011-1625-430000 |
Citation | Leñero Bardallo, J.A., Hafliger, P.D., Carmona Galán, R. y Rodríguez Vázquez, Á.B. (2016). A Bio-Inspired Vision Sensor With Dual Operation and Readout Modes. IEEE Sensors Journal, 16 (2), 317-330. |
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