Automatic tracking camera control system
Patent 5434617 Issued on July 18, 1995. Estimated Expiration Date: 
December 7, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 7, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3652790 3699248 3891798 Video tracking system Surveillance system Surveillance system Threshold selection circuit Apparatus and method for preprocessing video frame signals Video movement detector Vision target fixture construction InventorAssigneeApplicationNo. 350752 filed on 12/07/1994US Classes:348/170, Using tracking gate348/169OBJECT TRACKINGExaminersPrimary: Chin, Tommy P.Assistant: Lee, Richard Attorney, Agent or FirmInternational ClassH04N 007/18AbstractMethodology and circuitry for automatically effecting electronic camera movement to track and display the location of a moving object, such as a person presenting a talk to an audience. A fixed spotting camera is used to capture a field of view, and a moving tracking camera with pan/tilt/zoom/focus functions is driven to the present location of the moving object. Information for driving the tracking camera is obtained with reference to the pixel difference between a current image and a previous image within the field of view. A tracking algorithm computes the information necessary to drive the tracking camera from these pixel differences as well as data relative to the field of view of the spotting camera and the present tracking camera position. | |
