Curled surface imaging system

摘要

The present invention relates to a system for de-warping images of a developable surface, including developable curled surfaces, and in particular of images of curled documents ( 30 ). The system ( 1 ) includes a processor ( 25 ) linked to an image capture means ( 2 ) which: captures an image of the surface ( 30 ), said image having a warp corresponding to the non-planar surface; generates from the image a first set of points representing the three-dimensional profile of the non-planar surface relative ( 30 ) to a planar reference surface ( 12 ); fits to the first set of points a second set of points representative of a developable mesh; and uses the second set of points to texture-map the image ( 12 ) in order to de-warp the image.