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A Low-Power VGA Vision Sensor with Embedded Event Detection for Outdoor Edge Applications

Zou, Yu; Gottardi, Massimo; Lecca, Michela; Perenzoni, Matteo


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<oai_dc:dc xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
  <dc:creator>Zou, Yu</dc:creator>
  <dc:creator>Gottardi, Massimo</dc:creator>
  <dc:creator>Lecca, Michela</dc:creator>
  <dc:creator>Perenzoni, Matteo</dc:creator>
  <dc:date>2020-07-13</dc:date>
  <dc:description>We report on a low-power VGA vision sensor embedding event-detection capabilities targeted to battery-powered vision processing at the edge. The sensor relies on an always-on double-threshold dynamic background subtraction (DT-DBS) algorithm. The resulting motion bitmap is de-noised, projected along xy-axes of the array of pixels and filtered to robustly detect moving targets even in noisy outdoor scenarios. The chip operates in motion detection (MD), applied on a QQVGA sub-sampled image, looking for anomalous motion in the scene at 344 μW, and in imaging mode (IM), delivering full-resolution gray-scale images with associated local binary pattern (LBP) coding and motion bitmaps at 8 frames/s and 1.35 mW. The 4-μm pixel vision sensor is manufactured in a 110-nm 1P4M CMOS and occupies 25.4 mm².</dc:description>
  <dc:identifier>https://zenodo.org/record/4059748</dc:identifier>
  <dc:identifier>10.1109/JSSC.2020.3005759</dc:identifier>
  <dc:identifier>oai:zenodo.org:4059748</dc:identifier>
  <dc:relation>info:eu-repo/grantAgreement/EC/H2020/653355/</dc:relation>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>https://creativecommons.org/licenses/by/4.0/legalcode</dc:rights>
  <dc:source>Solid-State Circuits</dc:source>
  <dc:subject>Background subtraction, event detection, local binary pattern, low-power vision sensors, motion detection</dc:subject>
  <dc:title>A Low-Power VGA Vision Sensor with Embedded Event Detection for Outdoor Edge Applications</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>
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