Schaltung zur Bewegungsdetektion.

摘要

The motion detection circuit is so constructed that an interframe difference signal is passed through a horizontal direction LPF (3) and a vertical direction LPF (10) in cascade connection, and the interframe difference signal ( alpha ) thus obtained is divided by the value (8) obtained by mixing an edge signal of an image and the image level signal of the image by a mixing circuit (9), thus providing a motion signal.