Patent ID: 9549159
Date: 2017-01-17
CPC Classifications: G03B,H04N

Claim:
1. An image projection apparatus comprising: a light modulation device that modulates light according to image data in a pixel unit; a projecting unit that projects light modulated by the light modulation device; an angle-of-view deriving unit that derives an angle of view at which light modulated by the light modulation device is projected by the projecting unit; a projection-direction changing unit that changes a projection direction of the projecting unit from a first projection direction to a second projection direction, based on a minimum variable angle; a projection-angle deriving unit that derives a projection angle between the first projection direction and a projection direction changed by the projection-direction changing unit; a storage unit that stores input image data input; and an image cutting unit that generates cut-out image data that is obtained by cutting a region of a part of an image of the input image data that is stored in the storage unit based on the angle of view and the projection angle in a predetermined cycle as image data projected by the projecting unit when the projecting unit projects from the first projection direction through the second projection direction, wherein the minimum variable angle is determined based on the angle of view and a size in a pixel unit of an effective region in which the light modulation device modulates light.