Patent ID: 7835592

Claim:
A method for adjusting an image projected onto a warped surface, comprising method operations of: capturing calibration points within a calibration image projected onto the warped surface; analyzing the calibration points to determine relative locations among the calibration points; ordering the calibration points according to the relative locations; and applying the ordered calibration points to alter the image prior to projection onto the warped surface; and wherein ordering the calibration points according to the relative locations includes, defining a pseudo origin proximate to a leftmost point of a top row for use in locating a leftmost point of a next row; and repeating the defining for successive rows; and wherein ordering the calibration points according to the relative locations includes, a) identifying a calibration point having a minimum Y coordinate; b) determining a distance between the calibration point having a minimum Y coordinate and a point nearest to the calibration point having a minimum Y coordinate; c) identifying all calibration points within a multiple of the distance; and d) determining which of the calibration points within the multiple of the distance has an X coordinate that is less than the X coordinate of the calibration point and a smallest Y coordinate value.