METHOD AND APPARATUS FOR PREVENTING KEYSTONE DISTORTION
摘要
<p>A method and apparatus are provided for preventing keystone distortion in a projected image. A projected image (750a) is produced by projecting light from a light source (102) through a deformed image (700a) rendered on a display device (110) of a projector (100) and onto a viewing surface (130) at a non-perpendicular angle. An original image (700) received for projection is deformed in proportion to the projection angle to generate the deformed image (700a), which is projected to yield the projected image (750a) having proportions closely matching the original image (700). The original image (700) may be resized for storage in memory and/or to fit within a specified area of the display device (110). The apparatus further comprises a digitizer module (206) for receiving the original image (700) and resizing it for storage and a generator module (208) for resizing the image to fit the display device (110). Deformation of the original image (700) may be performed in either or both of digitizer (206) and generator (208).</p>
申请公布号
WO0021282(A1)
申请公布日期
2000.04.13
申请号
WO1999US22726
申请日期
1999.10.01
申请人
MACRONIX INTERNATIONAL CO., LTD.;CHEN, CHUN-HUNG;CHEN, SHUEI-LIN;TING, HOU-CHUN;YANG, MENG-SHAN;CHANG, TING-YAO;KUO, CHUN-HAO