IMAGE PROJECTION DISPLAY DEVICE, IMAGE PROJECTION DISPLAY METHOD, AND IMAGE PROJECTION DISPLAY PROGRAM

摘要

PROBLEM TO BE SOLVED: To enable easy detecting of the user's presence direction written to a display screen without using special appliances. SOLUTION: The image projection display device having a projector 102 for projecting an image, a display surface 100 projected with the image by the projector 102 and a CCD camera 103 for photographing the projection surface of the display surface 100 is equipped with a pointing direction detector 112 for detecting the user's direction in the surroundings of the display surface 100 from the image of the projection surface photographed by the CCD camera 103. COPYRIGHT: (C)2005,JPO&NCIPI