flickerindex
Flickerindex is a term used in lighting, imaging, and display contexts to describe the degree of temporal brightness variation, i.e., flicker, in a signal or source. There is no single universally accepted definition; different communities adopt related measures that quantify how much the luminance or intensity deviates over time from its mean. In practice, flicker index can be computed from time series of luminance L(t) collected at a rate high enough to resolve flicker.
One common approach in lighting engineering is to normalize the instantaneous luminance by its mean and aggregate
Measurement typically requires a calibrated photodetector or luminance sensor and a data acquisition system with a
Applications include specification and comparison of light sources, drivers, and lighting control systems; assessment of perceptual