Patent ID: 7290887

Claim:
A projector, comprising: projection means for projecting an image displayed on a light bulb at an enlarged scale onto a projection surface, imaging means for capturing an image on the projection surface and outputting a captured image, and projection surface detecting means for detecting the relative distance and the relative angle of said protection surface with respect to said projector, characterized in that; said projection means corrects a distortion caused in the projected image when the image is obliquely projected onto said projection surface, by means of a first parameter for deforming the image displayed on the light bulb, and projects the distortion-corrected image, said first parameter being automatically set from information detected by the projection surface detecting means; said imaging means corrects a distortion caused in the captured image when said projection surface is obliquely imaged, by means of a second parameter for processing the captured image, and outputs the distortion-corrected image, said second parameter being calculated from said first parameter.