Patent ID: 6408024
Filing Date: 2002-06-18
Classification: G11B,H04N

Abstract:
In a telecine video signal obtained through conversion into an interlaced signal by a 2-3 pulldown scheme, a telecine video signal detector for detecting, if part of the telecine signal is missing, the missing part of the telecine signal and deciding whether successive telecine conversion has been carried out, the detector comprising:motion detection means for detecting a motion of an image between a first field of said telecine video signal and a second field at least one or more fields apart from the first field, and generating a motion detection signal; first statistical processing means for accumulating said motion detection signals for one field, and generating a first statistical signal; first telecine decision means for deciding, based on said first statistical signal, whether said first field represents a telecine-converted image, and generating a first telecine decision signal; second statistical processing means for carrying out a histogram operation with respect to said telecine video signal for one field, and generating a second telecine decision signal including video statistical information; 1-field delay means for delaying said second statistical signal by at least one field, and generating a delayed second statistical signal; scene-change detection means for detecting, based on said second statistical signal, said delayed second statistical signal, and a predetermined threshold, a scene-change in said telecine video, signal and generating a scene-change detection signal; second telecine decision means for deciding, based on said scene-change detection signal and the first telecine decision signal, whether said first field represents an image produced through successive telecine conversion, and generating a second telecine decision signal; and AND operation means for carrying out an AND operation on said first telecine decision signal and the second telecine decision signal, wherein whether said first field represents the image produced through successive telecine conversion is indicated based on a result of the AND operation.