Motion image region identification device and method thereof

An apparatus for determining a rectangular moving image region displayed in part of a display region, the display region having pixels arranged in row and column directions therein, the apparatus comprising:

• moving unit block judgment means configured to divide the display region into unit blocks each including a predetermined number of pixels and to judge whether each unit block is a moving unit block having a motion;
• moving column block determination means configured to define, as a column block, a set of unit blocks included in a column of the unit blocks, the column including one of the uppermost unit blocks and to, if one column block includes at least one moving unit block, determine the column block as a moving column block;
• moving row block determination means configured to define, as a row block, a set of unit blocks included in a row of the unit blocks, the row including one of the leftmost unit blocks and to, if one row block includes at least one moving unit block, determine the row block as a moving row block;
• first rectangular moving image region determination means configured to determine, 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;
• and
• a second rectangular moving image region determination means configured to determine, as boundary of the rectangular moving image region, a region defined by edges in peripheral unit blocks, the peripheral unit blocks forming peripheral four sides of the rectangular moving image region, on the basis of pixels in the peripheral unit blocks, of the unit blocks included in the rectangular moving image region.

A non-transitory computer readable medium storing a program for causing a computer to perform a process of determining a rectangular moving image region displayed in part of a display region, the display region having pixels arranged in row and column directions therein, the program causing the computer to function as:

• moving unit block judgment means configured to divide the display region into unit blocks each including a predetermined number of pixels and to judge whether each unit block is a moving unit block having a motion;
• moving column block determination means configured to define, as a column block, a set of unit blocks included in a column of the unit blocks, the column including one of the uppermost unit blocks and to, if one column block includes at least one moving unit block, determine the column block as a moving column block;
• moving row block determination means configured to define, as a row block, a set of unit blocks included in a row of the unit blocks, the row including one of the leftmost unit blocks and to, if one row block includes at least one moving unit block, determine the row block as a moving row block;
• first rectangular moving image region determination means configured to determine, 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;
• and
• a second rectangular moving image region determination means configured to determine, as a boundary of the rectangular moving image region, a region defined by edges in peripheral unit blocks, the peripheral unit blocks forming peripheral four sides of the rectangular moving image region, on the basis of pixels in the peripheral unit blocks, of the unit blocks included in the rectangular moving image region.