公开(公告)号：US20230412930A1

公开(公告)日：2023-12-21

申请号：US18336405

申请日：2023-06-16

Applicant: PROPHESEE

Inventor： Serge BURY ,  Xavier LAGORCE

IPC: H04N23/745 ,  H04N25/60

CPC classification number: H04N23/745 ,  H04N25/60

Abstract: An apparatus comprising an interface and a processor. The interface may be configured to receive an asynchronous event stream from an event-based sensor. The event stream may comprise a series of pixel locations with a timestamp each generated in response to an autonomous detection by any of a plurality of pixels of the event-based sensor exceeding a threshold. The processor may be configured to detect a characteristic pattern of a flicker event in the event stream and generate an output signal containing a tick result in response to the characteristic pattern of the flicker event. A predicted recurring interval of the flicker event may be determined based on the characteristic pattern. The tick result may comprise future timestamps of the flicker event determined based on the predicted recurring interval for the timestamp of the autonomous detection of a particular one of the pixel locations.