| 摘要 |
A motion detection unit detects a motion vector of each of blocks constituting interpolation frame Ft-0.5 on the basis of two frames that are timely sequential. A motion vector smoothing unit removes an impulse noise-like motion vector, of the motion vectors detected by the motion detection unit. An edge group formation unit divides decoding frame Ft in rectangular block unit, as a reference frame, obtains an edge correlation between timely blocks and an edge correlation between spatial blocks, and groups blocks having high correlation. A motion vector correction unit subjects the smoothed motion vector to correction common to the grouped blocks, on the basis of the grouping result.
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