| 摘要 |
An apparatus comprises: a storage unit adapted to store information that associates information representing the key frame with information representing the display form of the object of the key frame; an assignment unit adapted to assign, to the time-points corresponding to the key frames, indicators with which a difference between the display forms of the objects is identifiable; and a control unit adapted to, when a new key frame is set at a time-point of interest on the time axis where no key frame is preset, and the same indicator as one of the indicators is assigned to the time-point of interest, cause the storage unit to store information representing the newly set key frame in association with information representing the display form of the object of each preset key frame, which is information representing the display form of the object at the time-point to which the same indicator is assigned.
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