| 摘要 |
<p>PURPOSE:To make the circuit scale small and to quicken the motion compensating processing time by using a motion vector signal of a luminance signal so as to compensate a motion of a chrominance signal. CONSTITUTION:At first a motion detection circuit 21 for a luminance signal Y receives a Y signal of a current frame subject to block processing and Y signals of plural blocks of a preceding frame. The motion detection circuit 21 compares the Y signal of the current frame subject to block processing with the plural Y signals of a preceding frame subject to block processing to detect a block of the preceding frame with highest correlation with the Y signal subject to block processing of the current frame and inputs the result to a motion vector calculation circuit 22, in which a motion vector is calculated. The calculated motion vector is inputted to a Y signal motion compensation circuit 23 and a PB signal motion motion compensation circuit 24 and a PR signal motion compensation circuit 25 for color difference signals, in which the motion compensation for the Y signal and the PB, PR signals is implemented.</p> |
