| 摘要 |
A motion vector is detected between a base block of a present frame and an inspection block of a reference frame, which is moved in a predetermined search range of the reference frame, on the basis of constant and transient components extracted (31a,31b,32a,32b) from the base and inspection blocks. The constant (low frequency) component may be the mean value of the pixels of the block. The transient (high frequency) component may be the standard deviation of the pixels of the block. The base and inspection blocks may be respectively segmented into small blocks, and the constant and transient components of the small blocks obtained, compared (35a,35b) and summed (37). <IMAGE> |
