Pixel Latency Measurements of Event Cameras

Area of Science:

• Computer Vision
• Robotics
• Sensor Technology

Background:

• Event cameras offer high temporal resolution for real-time applications.
• Current pixel latency specifications are vague, hindering performance assessment.
• Latency is influenced by stimulus irradiance, camera settings, and pixel activity.

Purpose of the Study:

• To establish a standardized, reproducible hardware setup and measurement procedure for event camera pixel latency.
• To enable consistent latency specification by vendors and informed selection by consumers.
• To define pixel latency metrics relevant to real-time applications.

Main Methods:

• Development of an accessible hardware setup for latency measurement.
• Precise specification of hardware configuration and measurement protocols.
• Reporting pixel latency measurements for three distinct event cameras.

Main Results:

• A reproducible method for measuring event camera pixel latency was successfully defined and demonstrated.
• Latency measurements varied across tested event cameras, highlighting the need for standardized specifications.
• The proposed method and metrics provide practical value for deploying event cameras.

Conclusions:

• A standardized approach to measuring and specifying event camera pixel latency is essential for real-time applications.
• The developed methodology ensures reproducibility for vendors and aids consumer decision-making.
• Accurate latency data empowers better integration of event cameras in various fields.