Video surveillance system

A computer-implemented video management method for a video management system (VMS), comprising steps:

• a) receive, at a video management system, a plurality of metadata streams and associated with a plurality of video streams, respectively, each video stream being supplied by, or associated with, respective ones of a plurality of video cameras;
• b) receive, at a processing unit comprised in the video management system, GIS data associated with a position of each video camera of the plurality of video cameras;
• c) receive, by the processing unit, field-of-view (FOV) data associated with each video steam of the plurality of video streams, where the FOV data comprises position and orientation of each video camera of the plurality of video cameras, and image sensor and lens information of each video camera of the plurality of video cameras;
• and
• d) determine, by the processing unit, an adjusted FOV associated with each video stream of the respective video camera, the determination being based on the FOV data and on the GIS data, where the adjusted FOV of each video stream indicates unobscured FOV and/or limited-visibility FOV of the area covered by the FOV of the respective video camera.

A video management system (VMS) comprising:

• a recording server configured for receiving and storing a plurality of video streams and associated metadata streams, each video stream being supplied by, or associated with, respective ones of a plurality of video cameras;
• a user interface (UI) client configured to:
• provide a graphical user interface (GUI);
• display, via the GUI, the video stream of a selected camera frame-by-frame;
• display, via the GUI, a geo-map;
• and
• display an icon representative of the selected camera on the geo-map at a camera map position,
• a processing unit configured to receive data via a data communication interface, and further configured to:
• receive field-of-view (FOV) data associated with the plurality of video streams, the FOV data comprising:
• position and orientation of each camera, and image sensor and lens information of each camera;
• determine the FOV of the selected camera at a time associated with the displayed video frame;
• determine a direction of movement of the selected camera at the associated time;
• and
• determine a projected FOV area, which is an estimate of the FOV of the selected camera at a later time, where the projected FOV area is based on the direction of movement of the selected camera, wherein the UI client is further configured to:
• display, on the geo-map, a geographical area that comprises at least the extent of the projected FOV area of the selected camera, and continuously update the geo-map when at least one of the camera position and FOV data of the selected camera changes, wherein the updated geo-map comprises at least the extent of the FOV of the selected camera and the projected FOV of the selected camera.