When it is determined that acceleration acting on an imaging apparatus is stable and an attitude direction determination result based on the acceleration continues as the same result, an attitude determination unit updates the attitude direction determination result to the latest one to be used for blur correction of a frame upon playback. On the other hand, when the acceleration acting on the imaging apparatus is not stable, when the attitude direction determination result based on the acceleration is different from the last result, or when attitude direction determination result does not continue predetermined times though it is the same result as the last determination result, the attitude determination unit does not update the attitude direction determination result to hold the past attitude direction determination result and use it for blur correction and the like of the frame upon playback.