Image sensor having pixel clusters each including an event processing circuit

An image sensor, comprising:

• a pixel array unit including a plurality of pixel clusters, wherein each pixel cluster includes a number L of pixel circuits, wherein each pixel circuit is configured to output pixel event information, and wherein the pixel event information indicates whether or not a change of radiation intensity received by the pixel circuit exceeds a positive threshold value and whether or not the change of the radiation intensity received by the pixel circuit falls below a negative threshold value, and
• an event processing circuit configured to receive pixel information based on the pixel event information of the pixel circuits of a pixel cluster and to generate cluster event information indicating whether or not the pixel information of the L pixel circuits fulfills a predefined cluster output condition,
• wherein the event processing circuit is configured to generate the cluster event information indicating that the pixel information fulfills the predefined cluster output condition based on a requirement that the pixel information indicates a plurality of instances of the pixel event information having at least one of (i) an origination from a predefined minimum number of different pixel circuits within the pixel cluster or (ii) a predefined relative timing.