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US 2003/0112449 A1Published application
Method for the extraction of image features caused by structure light using image reconstruction
AssigneeGeneral Electric Company
InventorsPeter Henry Tu, Glen William Brooksby
Life of this patent
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Abstract
A method for generating, in a non-contact range finding and measurement system, a template structure representative of the surface of an observed object, and for utilizing the template structure to synthesize data points in corrupted regions of an image of the object.
Claims13
A method for synthesizing image points representative of laser stripes projected onto the surface of an object in a non-contact gauge measurement system, comprising:
- obtaining a first image of said projected laser stripes from a first camera;
- identifying at least one corrupted region in said first image;
- obtaining a plurality of additional images of said projected laser stripes from a corresponding plurality of cameras, wherein said corresponding plurality of cameras are each displaced from said first camera;
- identifying at least one point in each of said plurality of additional images corresponding to a target point in said corrupted region of said first image;
- determining the three-dimensional position of said at least one point using said plurality of additional images;
- and
- utilizing said determined three-dimensional position of said at least one point to synthesize a data point in said corrupted region representing said target point.
4 more elements
A method for synthesizing image points representative of laser stripes projected onto the surface of an object in a non-contact gauge measurement system, comprising:
- obtaining a first image of said projected laser stripes from a first camera;
- identifying at least one corrupted region in said first image;
- utilizing a predetermined template structure to select a target point on a portion of a chosen laser stripe passing through said corrupted region;
- obtaining an additional plurality of images of said projected laser stripes from a corresponding plurality of cameras, wherein said corresponding plurality of cameras each have a known geometry and are each displaced from said first camera;
- utilizing said predetermined template structure and epi-polar geometry to identify a data point on said image of said chosen laser stripe in a first of said additional plurality of images, said data point corresponding to said selected target point;
- utilizing said data point and epi-polar geometry to identify a laser stripe in a second of said additional plurality of images corresponding to said chosen laser stripe;
- and
- utilizing said known geometry of said cameras, together with said data point and said identified laser stripe to synthesize a representative point in said corrupted region through projection.
5 more elements
Dependencies are inferred from the claim text.