Patent ID: 7695143
Filing Date: 2010-04-13
Classification: H04N

Abstract:
1. An image processing system comprising: an image projection means for projecting a calibration image onto a projection target; a sensing means for sensing the calibration image to generate sensing information; a projection target region information generation means for generating projection target region information based on the sensing information; a projection area information generation means for generating projection area information based on the sensing information; a correction information generation means for generating image distortion correction information based on the projection target region information and the projection area information; and a distortion correction means for correcting an image signal based on the image distortion correction information so that image distortion is corrected; the image projection means projecting an image based on the image signal that has been corrected by the distortion correction means, and the correction information generation means determining a first height/width ratio that indicates a height/width ratio of the projection target based on the projection target region information, and generating the image distortion correction information so that an image is displayed at the first height/width ratio when the first height/width ratio is within an acceptable range, and the image is displayed at a second height/width ratio that indicates a desired height/width ratio when the first height/width ratio is not within the acceptable range.