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Projection display system with pressure sensing at a screen, a calibration system corrects for non-orthogonal projection errors
Projection display system with pressure sensing at a screen, a calibration system corrects for non-orthogonal projection errors
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机译:投影显示系统在屏幕上具有压力感测,校准系统可校正非正交的投影误差
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摘要
Calibration structure, method, and code for correcting non-orthogonal misalignment of a computer-generated image that is projected onto a large screen touch-detecting display, so that a computer-generated image appears substantially where the display is touched. Structure/method/code generates at least four calibration marks, respectively, substantially proximate four corners of a projected image to be displayed on the display. Structure/method/code, responsive to a touch on the large screen touch-detecting display where each of the four calibration marks is displayed, identifies horizontal and vertical coordinates of each touched location. Structure/method/code calibrates the projected image to the display after the four calibration marks have been touched. Structure/method/code, responsive to another touch on the display after calibration, displays a computer image substantially at the location of the another touch.
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