| 摘要 |
<p>PURPOSE:To performing the processing of a moving picture without the occurrence of a multi-line blur by suppressing a high frequency band component in the memory area of a picture signal by using a method to substitute a signal, obtained by selecting the signal component of the minimum absolute value in every picture element among the specific component signals of three kinds, for a high frequency band component signal. CONSTITUTION:When the picture signal is given the moving picture processing by using a temporal filter 2, the high frequency band component signal (b), the component signal (a), obtained by letting this high frequency band component signal pass through the temporal filter, and the component signal (a+b)/2, which is the mean value of these two component signals (a) and (b), are prepared. Then, by the method to substitute the signal, obtained by selecting the component signal of the minimum absolute value among these three kinds of the components in every picture element by a minimum absolute value selection circuit 3, for the high frequency band signal of the picture signal, the high frequency component of the moving area of the picture signal is suppressed. Thus, the multi-line blur does not occur, and the picture can be obscured properly, and the moving picture can be processed without injuring the picture quality.</p> |
