To obtain a motion compensation predicting device that reduces a transfer band by reducing redundant accesses to an external frame memory when image data are expanded to an area outside a screen.

When a determination result of an out-screen determination unit 2 indicates that the area outside the screen is included, a readout data controller 6 configures image data for a search range by expanding image data stored in a reference image memory 5 to the area outside the screen, and outputs the image data for the search range as image data of a reference image to a motion compensation predicting unit 1.