Method and device for event-processing

A method of event processing, by a data processing device, based on event data captured by an event-based sensor, the method comprising, in response to the reception of a new event from the event-based sensor:

• 1) extracting, by the data processing device, from a first group of events comprising the new event, a set of features of the new event, wherein each event comprises a time stamp and an event data value having one or more dimensions;
• 2) modifying the set of features of the new event to include current values of a further set of features;
• and
• 3) computing a result based on the modified set of features of the new event,
• wherein the method further comprises updating, at time intervals, the current values of the further set of features by:
• during each time interval, sorting received events into second groups of events according to their event data value;
• and
• computing the current values of the further set of features according to the event data value of events from one or more of the second groups selected based on a time interval and/or event data value of the events of the second groups.