| 摘要 |
<p>A detector for detecting a motion vector indicating the motion of an image comprising: means (4, 133) for deriving correlative values for an overall or partial screen area for the two-field image signal of a successively inputted TV signal, within an area of motion vectors to be predicted for the current field, based on the motion vectors obtained before the current field; and means (5, 134) for deriving, as a motion vector, an optimum value from among the correlative values, whereby the correlative values in the area of motion vectors to be predicted for the current field are derived on the basis of the motion vectors obtained before the current field, and then a motion vector is detected from among those correlative values. With the above said structure, it is made possible to detect a motion vector in a larger area with a smaller amount of operation, circuit and processing time, as compared with a prior art detector.</p> |
