Method and system for automatically determining the camera field of view in a camera network

摘要

A system and method for automatically determining the camera field of view in a camera network. The system has a plurality of spatially separated cameras and direction sensors, carried on respective cameras, configured to measure the angle directions of the field of views of the cameras. Elevation sensors are operably coupled to respective cameras to measure the elevation angles of thereof. A controller is configured to process direction and elevation measurement signals transmitted from the cameras to automatically determine the cameras' fields of views. One or more cameras having a field of view containing or nearby an event of interest can be selected from the determined field of views and indicated to a user via a graphical user interface. Selected cameras which are rotatably mounted can be rotated if need be to automatically bring the event of interest into the field of views of the selected cameras.

主权项

1. A system for automatically determining a camera field of view in a camera network, said system comprising:
a plurality of spatially separated cameras, direction sensors associated with said cameras, configured to measure a horizontal camera direction angle with respect to magnetic north for the field of view of said cameras and to generate corresponding direction measurement signals; elevation sensors coupled to respective said cameras to measure elevation angles for the field of view with respect to a vertical axis and to generate corresponding elevation measurement signals; a controller, linked to said cameras and a plurality of physical condition sensors, for processing said direction and elevation measurement signals to automatically determine the fields of views of said cameras; wherein said controller is further configured to determine the amount of horizontal and/or vertical rotation required to bring an event of interest into the field of view of at least one camera based on a comparison of the at least one camera's direction and elevation measurements to respective predetermined camera-event horizontal and vertical bearings between at least one camera and said event of interest; and a facility map containing location information for each of said plurality of spatially separated cameras wherein said facility map is rendered on a graphical user interface display linked to said controllers.