| 摘要 |
An apparatus for and a method of detecting a motion vector (MV) by selectively using a median filter according to a correlation between blocks in a frame rate conversion of an image signal. The apparatus includes first and second motion vector detection units. The first motion vector detection unit performs motion estimation on a reference block to detect a motion vector as a final MV of the reference block if a location of the reference block in the present frame of an input image signal belongs to an object's boundary area adjacent to an image area in which a motion scarcely exists. The second motion vector detection unit performs median-filtering the MV of the reference block to detect a medial MV as the final MV of the reference block if the location of the reference block does not belong to the object's boundary facing the area in which the motion scarcely exists. Thus, the occurrence of motion artifacts due to the median filter can be prevented.
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