Image analysis – Applications – 3-d or stereo imaging analysis
Reexamination Certificate
2008-06-27
2011-12-27
Le, Brian (Department: 2624)
Image analysis
Applications
3-d or stereo imaging analysis
Reexamination Certificate
active
08086026
ABSTRACT:
A method or a system embodiment determines positional information about a moveable object to which is affixed a pattern of stripes having reference lines. A method determines image lines of stripe images of each stripe within at least two video frames, uses the image lines to prescribe planes having lines of intersection, and determines a transformation mapping reference lines to lines of intersection. Position information about the object may be derived from the transformation. A system embodiment comprises a pattern of stripes in a known fixed relationship to an object, reference lines characterizing the stripes, two or more cameras at known locations, a digital computer adapted to receive video frames from the pixel arrays of the cameras, and a program stored in the computer's memory. The program performs some or all of the method. When there are two or more moveable objects, an embodiment may further determine the position information about a first object to be transformed to a local coordinate system fixed with respect to a second object.
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Le Brian
Schulz Waldean
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