| 摘要 |
A projection image display apparatus is disclosed which enable users to observe an image in an overlap area well. The apparatus comprises a first projector which projects a first image onto a projection surface, a projection area detector which acquires a projection area onto which a second projector projects a second image in a certain area of the projection surface. Further, the apparatus comprises a projection area controller which controls a projection area onto which the first projector projects the first image, based on an input signal from the projection area detector.
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