LED flicker is conflict between pulse width modulation of driven LED sources, and the capture architectures of pixels. “LED flicker is an artifact observed in digital imaging where a light source appears to flicker,” explained Brian Deegan, Vision Research Engineer at Valeo. “For example, the light may appear to switch on and off, or modulate in terms of brightness or color, even though the light source appears constant to a human observer.”
Addressing LED flicker is an ongoing challenge for engineers working on machine vision algorithms and other ADAS applications. Deegan’s colleague, Patrick Denny, Valeo Senior Expert and Technical Lead, shows us what “the culprit looks like” in this presentation on LED Flicker.