Patent ID: 8328366
Filing Date: 2012-12-11
Classification: H04N

Abstract:
1. A projector comprising: a projecting unit that projects a first image including an image showing at least one segment on a projection target area; an imaging unit that picks up an image of the projection target area during the projection of the first image to generate a first pickup image and picks up an image of the projection target area during single-color image projection or during non-projection with automatic exposure to generate a second pickup image; an imaging control unit that changes, when a luminance value of a part of the segment included in the first pickup image is not within a predetermined range, an exposure setting value on the basis of the luminance value and an exposure setting value during the last imaging and causes the imaging unit to pick up an image of the projection target area during the projection of the first image at the exposure setting value after the change and regenerate the first pickup image; a first coordinate information generating unit that generates, on the basis of the first pickup image, first coordinate information indicating a coordinate of the part of the segment; and a second coordinate information generating unit that generates, on the basis of the second pickup image, second coordinate information indicating a coordinate of a boundary line of the projection target area.