FOCUS DISTANCE CALIBRATING DEVICE IN A DIGITAL IMAGE PROCESSOR AND A METHOD THEREOF, CAPABLE OF CALIBRATING A FOCUS DISTANCE OF A DIGITAL IMAGE PROCESSOR WITHIN A DOME COVER

摘要

PURPOSE: A focus distance calibrating device in a digital image processor and a method thereof are provided to perform the focus tracking performance improvement and optimized auto focus in a zoom by calibrating short distance momentum of right focus with a dome cover in current lens tracking data.;CONSTITUTION: A control unit performs auto focus by moving zoom lens from a tele end to a wide end(610). The control unit stores a focus position of focus lens every zoom positions in a memory(620). If focusing is completed, the control unit generates focus tracking data with focus distance information by zoom position(630,640). The control unit performs auto focus and zoom tracking with the focus tracking data. A dome cover is applied to the focus distance information by zoom position.;COPYRIGHT KIPO 2010