| 摘要 |
The circuit spreads a motion signal using an 1 bit control signal. The circuit includes a detector (118) for detecting a motion signal difference between frames, a spatial low pass filter (120) for filtering the motion signal difference, an absolute value calculating circuit (122) for calculating an absolute value of the output signal of the filter (120), a maximum value calculating circuit (128) for finding the maximum value of the output signal of the absolute value calculating circuit (122), a comparator (124) for comparing the maximum value with a reference value, an area detector (130) for estimating the area of motion signal to smooth the motion signal, and a motion factor (134) for generating a motion factor by processing the area detection signal.
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