Apparatus for detecting motion in a video image by comparison of a video line value with an interpolated value

摘要

A motion detector for detecting the occurrence of image changes between successive fields of video information includes a signal averager for averaging the video signal from two lines of video signal of one video field and a signal averager for averaging the video signal from three lines of video signal of a successive field. The two average video signals are coupled to comparing means which develops a motion indicating signal when the two average video signals differ.