Stationary Camera Aims And Zooms Electronically

Abstract

Microprocessors select, correct, and orient portions of hemispherical field of view. Video camera pans, tilts, zooms, and provides rotations of images of objects of field of view, all without moving parts. Used for surveillance in areas where movement of camera conspicuous or constrained by obstructions. Also used for closeup tracking of multiple objects in field of view or to break image into sectors for simultaneous viewing, thereby replacing several cameras.