Importance

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Abstract

A method for moving and controlling a video surveillance camera comprises the steps of: supporting a video surveillance camera for tilting movements about mutually perpendicular axes; transforming tilt and pan commands into angular movement commands; rotating the camera about the mutually perpendicular axes responsive to the angular movement commands, the video camera having a substantially hemispherical field of view as the camera is pivoted about the axes and the video camera generating a picture which is inverted relative to true horizontal over a portion of the field of view; and, automatically rotating the picture to a substantially right-side-up orientation whenever necessary, whereby a right-side-up picture is provided throughout the field of view without continuous panning rotation of the video camera. In a corresponding system, a servo mechanism tilts the video camera, a motion controller transforms the tilt and pan commands and a video signal processor rotates the picture.

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First Claim