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Summary
This summary is machine-generated.

This study assessed long-term radiation effects on Event-based Vision Sensors (EVS) in orbit. Results show minimal degradation, indicating DAVIS 240C EVS are suitable for long-duration space missions.

Keywords:
falcon ODINfalcon neurointernational space stationlow earth orbitneuromorphic visionnoiseradiation

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Area of Science:

  • Space Science
  • Sensor Technology
  • Radiation Effects

Background:

  • Event-based Vision Sensors (EVS) offer unique advantages over traditional cameras.
  • Previous studies on EVS radiation degradation were limited to ground-based experiments.
  • The Falcon Neuro payload deployed the first operational EVS in orbit.

Purpose of the Study:

  • To investigate the long-term effects of space radiation on EVS performance.
  • To evaluate the durability of DAVIS 240C EVS in an uncontrolled orbital environment.
  • To establish a baseline for EVS radiation tolerance in space.

Main Methods:

  • Utilized data from the Falcon Neuro payload on the International Space Station (ISS) from January 2022 to September 2024.
  • Analyzed data from both Earth-facing and space-facing DAVIS 240C EVS.
  • Employed unique features within EVS data to track degradation across 18 different measures.

Main Results:

  • Minimal degradation observed across most measured parameters over the mission duration.
  • Only one of the 18 analyzed measures showed a convincing deterioration trend.
  • Demonstrated the resilience of EVS pixel circuits to space radiation and environmental factors.

Conclusions:

  • DAVIS 240C Event-based Vision Sensors exhibit high aptitude for surviving long-term space flight.
  • The findings support the use of EVS in future space missions requiring robust vision systems.
  • This study provides critical real-world data on EVS radiation tolerance in orbit.