PHASE DETECTION AUTOFOCUS WITH DIAGONAL LINE DETECTION

摘要

An autofocus control system for an image capture device comprises one or more processors configured to receive a set of image data, determine whether the set of image data has at least one diagonal edge, and output a first signal in response to detecting at least one diagonal edge in the image data. The one or more processors are configured for analyzing a plurality of phase detection (PD) data from a plurality of PD pixels and outputting a phase difference value and a confidence level, including setting the confidence level to a predetermined value in response to the first signal. A PD autofocus controller is responsive to at least one of the phase difference value or the confidence level for outputting a lens position control signal.