US Patent 11202041 Event camera

An event camera includes an event-based sensor configured to detect a change in light intensity for each pixel as an event, and asynchronously output an event signal including a time when the event is detected and a pixel position where the event has occurred, a buffer configured to store the event signal output by the event-based sensor within a predetermined period between a time traced back to the past by the amount of the predetermined time from a reference time, and the reference time, a storage configured to store an image, and an update unit configured to update the image stored in the storage based on the event signal such that the image stored in the storage becomes an image of an update time included in the predetermined period.