| 摘要 |
A rectangular moving image region is determined using a simple configuration. When the difference between the representative value of a unit block and the representative value of the same unit block in a comparative frame exceeds a threshold, moving unit block judgment means 5 judges that the unit block is a moving unit block. Moving column block determination means 7 defines a set of unit blocks included in a column including a certain unit block as a column block and, if a column block includes a moving unit block, determines the column block as a moving column block. When a row block includes a moving unit block, moving row block determination means 9 determines the row block as a moving column block. First rectangular moving image region determination means 11 determines, as a rectangular moving image region, a rectangular region specified by unit blocks included in both the moving row block and the moving column block. |
