Patent ID: 9010937
Filing Date: 2015-04-21
Classification: G03B,H04N

Abstract:
1. An image projection apparatus comprising: a light source apparatus including a light modulation element to pass through or reflect light irradiated from the light source apparatus based on an image signal of a projection target image; a projection optical system to project an image passing through or reflected by the light modulation element on a screen; a signal separator to separate an image signal of the projection target image into a luminance signal and a color component signal; an image determiner to determine whether the image is a moving image or a still image based on the luminance signal; an average luminance level detector to detect an average luminance level of the image based on the luminance signal; a color profile analyzer to analyze color profile based on the color component signal; a color saturation analyzer to analyze color saturation based on the color component signal; an image contents determiner to determine contents of the projection target image based on determination of the image determiner, determination of the average luminance level detector, analysis of the color profile analyzer, and analysis of the color saturation analyzer; a light intensity ratio determiner to determine light intensity ratio of light emitted from the first light sources and light emitted from the second light sources based on the determination of the image contents determiner; and a light source controller to control the first light sources and the second light sources based on the light intensity ratio determined by the light intensity ratio determiner.