Detection method of generation sequence of interlace picture and interlace/progressive conversion method and device

摘要

A method for detecting a generation sequence of an interlace picture signal for interlace/progressive conversion includes a step for performing motion detection for each pixel by a two-field difference with respect to a picture signal of the n-th field (n is an integer), so as to obtain a two-time statistic value from the number of pixels having a motion, a step for obtaining a one-time statistic value from an accumulated value of one-field differences for pixels that are detected to have a motion by the two-field difference with respect to the picture signal of the n-th field, and a step for detecting whether or not a generation sequence of an input picture signal is an edit sequence in which a progressive picture is edited for generation, by using the obtained two-time statistic value and the one-time statistic value.