Motion compensated video signal processing; motion/no motion flag

摘要

A "motion flag", indicating whether an output pixel represents a moving or a stationary part of the current output image, is generated by detecting whether the degree of correlation between test blocks of the two input fields (from which that output image is to be interpolated) pointed to by a zero motion vector exceeds a threshold. The motion flag may be used in a standards converter (fig. 1) to control the selection of interpolation coefficients (fig. 9). IMAGE