Event sensor comprising a pixel array of pixels and configured to produce a signal stream of event data in reaction to light incident on said pixel array, comprising: - for each pixel of said pixel array at least one photodetector configured to produce a detector signal in reaction to light incident on said pixel; - for each pixel or a group of said pixels a signal converter connected to said photodetector and configured to repeatedly produce and store digital sample values dependent on said detector signal sampled at sampling intervals; and - a readout processor connected to said signal converter and configured: - to derive a digital accumulated pixel value based on one or multiple of said sample values, wherein said accumulated pixel value corresponds to an accumulation of said detector signal over a sampling count of said sampling intervals, - to calculate a division result of dividing said accumulated pixel value by said sampling count; - to determine an accumulated pixel value threshold based on said sampling count and/or a previous sampling count, and/or to determine a count threshold based on said accumulated pixel value and/or a previous accumulated pixel value; - to compare said accumulated pixel value and/or a previous accumulated pixel value to said accumulated pixel value threshold, and/or to compare said sampling count and/or a previous sampling count to said count threshold; - to generate a pixel event of said event data dependent on said accumulated pixel value and said sampling count, and to generate said pixel event dependent on said division result, wherein said readout processor is configured to generate said pixel event on the condition that said accumulated pixel value and/or a previous accumulated pixel value exceed(s) said accumulated pixel value threshold, and/or that said sampling count and/or a previous sampling count exceed(s) said count threshold. - for each pixel of said pixel array at least one photodetector configured to produce a detector signal in reaction to light incident on said pixel; - for each pixel or a group of said pixels a signal converter connected to said photodetector and configured to repeatedly produce and store digital sample values dependent on said detector signal sampled at sampling intervals; and - a readout processor connected to said signal converter and configured: - to derive a digital accumulated pixel value based on one or multiple of said sample values, wherein said accumulated pixel value corresponds to an accumulation of said detector signal over a sampling count of said sampling intervals, - to calculate a division result of dividing said accumulated pixel value by said sampling count; - to determine an accumulated pixel value threshold based on said sampling count and/or a previous sampling count, and/or to determine a count threshold based on said accumulated pixel value and/or a previous accumulated pixel value; - to compare said accumulated pixel value and/or a previous accumulated pixel value to said accumulated pixel value threshold, and/or to compare said sampling count and/or a previous sampling count to said count threshold; - to generate a pixel event of said event data dependent on said accumulated pixel value and said sampling count, and to generate said pixel event dependent on said division result, - to derive a digital accumulated pixel value based on one or multiple of said sample values, wherein said accumulated pixel value corresponds to an accumulation of said detector signal over a sampling count of said sampling intervals, - to calculate a division result of dividing said accumulated pixel value by said sampling count; - to determine an accumulated pixel value threshold based on said sampling count and/or a previous sampling count, and/or to determine a count threshold based on said accumulated pixel value and/or a previous accumulated pixel value; - to compare said accumulated pixel value and/or a previous accumulated pixel value to said accumulated pixel value threshold, and/or to compare said sampling count and/or a previous sampling count to said count threshold; - to generate a pixel event of said event data dependent on said accumulated pixel value and said sampling count, and to generate said pixel event dependent on said division result,