CLOUD-BASED VIDEO MONITORING

摘要

One embodiment of the present invention provides a cloud-based video monitoring system comprising a camera and a network video recorder (NVR). During operation, the camera stores in a buffer last predetermined temporal segment of a video. The camera also stores a first video file in a local storage corresponding to an event detected by the camera. This first video file is non-overlapping with a second video file corresponding to the event and this second video file is stored in the NVR. The camera generates a third video file by pre-pending last predetermined temporal segment of a video prior to the event to the first video file and sends the third video file to the NVR.

主权项

1. A method for a camera in a cloud-based video monitoring system, comprising:
storing, in a buffer by a digital video camera, a last predetermined temporal segment of a video stream; responsive to detecting a triggering event, generating a pre-event video file comprising at least the last temporal segment of the video stream prior to the triggering event; and sending the pre-event video file to a network video recorder (NVR) that is storing segments of the video stream after the triggering event.