| 摘要 |
A touch display has a touch screen to display images and one or more infrared cameras to take images of objects contacting the touch screen. One or more calibration patterns are formed on the touch screen. In response, an automatic process takes place, comprising:
producing an image of the touch screen by taking with each one of the group of infrared cameras a set of one or more images of the calibration patterns;
determining geometric distortions of the images with relation to the formed one or more calibration patterns; and
calculating calibration parameters configured to enable computational compensation of the determined geometric distortions. The calibration parameters are then stored. |
