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Título: | A bio-inspired vision sensor with dual operation and readout modes |
Autor: | Leñero-Bardallo, J. A. CSIC ORCID; Häfliger, Philipp; Carmona-Galán, R. CSIC ORCID ; Rodríguez-Vázquez, Ángel CSIC ORCID | Palabras clave: | Bio-inspired vision AER (Address Event Representation) Spatial contrast Asynchronous vision sensors |
Fecha de publicación: | 29-sep-2015 | Editor: | Institute of Electrical and Electronics Engineers | Citación: | IEEE Sensors Journal 16(2): 317-330 | Resumen: | 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. | Versión del editor: | https://doi.org/10.1109/JSEN.2015.2483898 | URI: | http://hdl.handle.net/10261/194905 | DOI: | 10.1109/JSEN.2015.2483898 | ISSN: | 1558-1748 |
Aparece en las colecciones: | (IMSE-CNM) Artículos |
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