Abstract: A management method, a computer performs an acquisition of video data from a monitoring terminal, an acquisition of a first event and a detection time of the first event from the video data; and a display of the detection time of the first event and an icon corresponding to a type of the first event, in a form according to the importance of the first event, on a display devise.

Abstract: A management device that includes an instruction unit that acquires metadata of video data of an area to be monitored generated by a monitoring terminal that detects an event from the video data, outputs, in response to an acquisition of metadata including information about the event, an analysis instruction for the video data of the area to be monitored imaged in a time zone including a time of detection of the event to a video analysis device that detects the event from the video data, and acquires an analysis result including information about the event detected from the video data by an analysis by the video analysis device, and an estimation unit that estimates a case event that has occurred in the area to be monitored based on the event detected by the monitoring terminal and the event detected by the video analysis device.

Abstract: The present invention reduces the amount of processing related to the analysis of video data. A detection time determination unit (11) determines a detection time for detecting a second event before or after a first event in time series from the video data on the basis of a time when the first event is detected from the video data, and an event detection unit (12) detects the second event from the video data in the detection time.

Abstract: An appropriate response to an event is recommended to a monitoring person. An event detection unit (12) detects an event based on video data, and an alert unit (13) issues a first alert when a first event is detected, and issues a second alert that is distinguished from the first alert when a second event relating to the first event is further detected in addition to the first event.