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A Framework for Dynamic Voltage Scaling of Image Sensors Towards Low Power IoT Vision

Venkatesh Kodukula, Mason Manetta, Robert Likamwa

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Energy-efficient visual sensing is crucial for enabling battery-backed low power IoT and mobile applications. However, modern image sensors still exhibit high power consumption, primarily attributed to analog readout. This high power consumption arises from the conventional practice of supplying a fixed voltage to the analog circuitry of image sensors. Towards that end, we propose to aggressively scale analog voltage supplied to the camera as means to significantly reduce sensor power consumption. This demonstration showcases the potential of dynamic voltage scaling on commercial image sensors within an RPi-based video streaming pipeline. We enable users to flexibly configure sensor voltage settings and observe the impact on both image fidelity and sensor power consumption. Furthermore, this demonstration offers a framework for studying the implications of flexible voltage specification in the context of a person tracking application.

Original languageEnglish (US)
Title of host publicationProceedings of the 29th Annual International Conference on Mobile Computing and Networking, ACM MobiCom 2023
PublisherAssociation for Computing Machinery
Pages1427-1429
Number of pages3
ISBN (Electronic)9781450399906
DOIs
StatePublished - Oct 2 2023
Event29th Annual International Conference on Mobile Computing and Networking, MobiCom 2023 - Madrid, Spain
Duration: Oct 2 2023Oct 6 2023

Publication series

NameProceedings of the Annual International Conference on Mobile Computing and Networking, MOBICOM
ISSN (Print)1543-5679

Conference

Conference29th Annual International Conference on Mobile Computing and Networking, MobiCom 2023
Country/TerritorySpain
CityMadrid
Period10/2/2310/6/23

Keywords

  • AR/VR
  • IoT
  • energy-efficiency
  • image sensors
  • voltage scaling

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

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