Curled surface imaging system
AssigneeHewlett-Packard Development Company, L.P.
InventorMaurizio Pilu
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Abstract
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.
Claims13
An imaging system for imaging a non-planar developable surface, the system comprising:
- a processor linked to an imaging detector and being capable of:
- capturing at least one image of the surface, said image having a warp corresponding to the non-planar surface;
- and of
- generating therefrom a first set of points representing the three-dimensional profile of the non-planar surface relative to a planar reference surface,
- wherein the processor is arranged to fit to the first set of points, a second set of points representative of a developable mesh and to use the second set of points to texture-map the image in order to de-warp the image.
A method of imaging a non-planar developable surface using an imaging system comprising a processor linked to an imaging detector, comprising the steps of:
- i) capturing at least one image of the surface, said image having a warp corresponding to the non-planar surface;
- ii) generating from the image a first set of points representing the three-dimensional profile of the non-planar surface relative to a planar reference surface;
- iii) fitting to the first set of points, a second set of points representative of a developable mesh;
- and
- iv) using the second set of points to texture-map the image in order to de-warp the image.
Dependencies are inferred from the claim text.