DISPLAY DEVICE AND CONTROL METHOD THEREOF, IMAGE PROCESSOR, AND COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a technology capable of adjusting a projection system by using visible light while continuing image projection.SOLUTION: A display device for projecting an image onto a screen to display the image includes: combination means for combining a predetermined pattern with an image of a display object; projection means for projecting the image with which the pattern is combined onto the screen; acquisition means for acquiring the image projected onto the screen; extraction means for extracting the pattern from the image acquired by the acquisition means; and correction means for correcting the shape of the image of the display object on the basis of the pattern extracted by the extraction means. The combination means generates an addition image obtained by adding the pattern to the image of the display object, and a subtraction image obtained by subtracting the pattern from the image of the display object, and the projection means for switches and projects the addition image and the subtraction image in a frequency faster than a frequency that a person can sense.SELECTED DRAWING: Figure 1