| 摘要 |
In conventional moving image compression coding apparatuses, in the case of a largely moving image, it is impossible to detect an appropriate motion vector, and further, it is difficult to set an appropriate motion vector detection area. <??>The following are provided: motion vector detecting means (12) of detecting a motion vector within a first motion vector detection area from a decoded moving image signal and a macroblock moving image signal; motion vector counting means (14, 15, 16) of counting the number of first motion vectors which is the number of motion vectors existing on a first outermost line which is the outermost line of the first motion vector detection area and on one or a plurality of second outermost lines adjoining the first outermost line which second outermost lines are each the outermost line of a second motion vector detection area existing inside the first motion vector detection area; and motion vector detection area determining means (13) of enlarging the first motion vector detection area based on the counted number of first motion vectors. <IMAGE> |
