| 摘要 |
Methods and apparatus for detecting movement in a composite television signal. A first difference signal is generated according to the difference between an Nth frame and an N-2th frame of a composite television signal. A second difference signal is generated by Y/C separation of an Nth frame and the N-1th frame of the composite television signal. A smooth signal is generated according to the smoothness of the Nth frame and the N-1th frame of the composite television signal. The first and second difference signals are output selectively according to the smooth signal.
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