Curled surface imaging system
First Claim
1. 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.
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Accused Products
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.
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Citations
13 Claims
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1. An imaging system for imaging a non-planar developable surface, the system comprising:
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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
ofgenerating 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. - View Dependent Claims (2, 3)
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4. 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:
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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. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification